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Page 1 of 41 Electricity Quiz Answers are at the bottom of this document Q1. Electricity investigation (a) Lena has this equipment: Tick THREE boxes to show which questions Lena could investigate using only the equipment shown above. Tick THREE boxes. Do different cells affect the brightness of a bulb? How many bulbs can be lit by one cell? Does the number of cells affect the brightness of a bulb? Does the number of switches affect the brightness of a bulb? Does the direction of cells affect the brightness of a bulb? 2 marks (b) Draw FOUR lines to match the electrical components to their symbols. 1 mark

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Page 1: Electricity Quiz Answers are at the bottom of this ... · (c) The bathroom window is closed. Jack sees drops of water on the inside of the bathroom window. Name the process that causes

Page 1 of 41

Electricity Quiz – Answers are at the bottom of this document

Q1. Electricity investigation

(a) Lena has this equipment:

Tick THREE boxes to show which questions Lena could investigate using only the equipment shown above.

Tick THREE boxes.

Do different cells affect the brightness of a bulb?

How many bulbs can be lit by one cell?

Does the number of cells affect the brightness of a bulb?

Does the number of switches affect the brightness of a bulb?

Does the direction of cells affect the brightness of a bulb?

2 marks

(b) Draw FOUR lines to match the electrical components to their symbols.

1 mark

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(c) Lena collected these wires. The wires are made of different metals.

Lena says, ‘I want to know if the wires made of different metals will change the brightness of the bulb in the circuit.’

What must Lena do to the wires to make her test fair?

___________________________________________________________________ 1 mark

(d) Lena makes her test fair.

Tick TWO boxes to show the two pieces of evidence Lena should collect for her results.

Tick TWO boxes.

how quickly the bulb lights up

how bright the bulb is

how many wires there are

what metals the wires are made of

1 mark

Q2. Circuits

(a) Two children made a model fairground ride.

They connected a battery to an electric motor to make the model turn.

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The motor is not working.

What is wrong with this circuit?

......................................................................................................................

...................................................................................................................... 1 mark

(b) Draw a circuit diagram in which the switch can be used to turn the motor on and off.

You MUST use these three symbols in your diagram.

1 mark

(c) Here are two different circuits which use the same kind of battery and bulb.

Which bulb will be the brightest ?

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Tick ONE box.

bulb A bulb B bulb C

1 mark

(d) The outside of this plug is made of plastic so that you do not get a shock when you plug it in.

Explain why the plastic helps to make the plug safe.

...................................................................................................................... 1 mark

(e) Why is it dangerous to put a plug in when the plug is wet?

......................................................................................................................

...................................................................................................................... 1 mark

Q3. Bright Lights

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(a) Jill made circuits with different lengths of wire, the same battery and the same bulb. The wire is coated in plastic.

She recorded her results in a table.

lenght of wire (m)

brightness of light from bulb

40 no light

30 dim glow

20 faint light

10 bright light

1 very bright light

Look at the table.

Describe how changing the length of the wire in the circuit affects the brightness of the light.

......................................................................................................................

...................................................................................................................... 2 marks

(b) Sharon had the same kind of wire.

She wanted to know how much wire she had on her reel.

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When the reel of wire was connected into the same circuit there was a faint light from the bulb.

Use the information from the table.

How much wire was on the reel when there was a faint light from the bulb?

Tick ONE box

less than 5 m 5 – 15 m 15 – 25 m

25 – 30 m more than 40 m 1 mark

Q4. Bathtime

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(a) Jack gets out of the bath. He dries himself with a towel.

Why is towelling a good material to dry himself with?

...................................................................................................................... 1 mark

(b) Small puddles of water drip on to the floor tiles and stay there.

Tick ONE box to say why the puddles stay on the floor tiles.

The puddles stay on the floor because the floor tiles…

soak up water.

bend easily.

are waterproof.

are solid.

1 mark

(c) The bathroom window is closed.

Jack sees drops of water on the inside of the bathroom window.

Name the process that causes the water to appear on the bathroom window.

...................................................................................................................... 1 mark

(d) The flow diagram below shows where the water goes before it reaches the window.

Complete the flow diagram to show where the water is.

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1 mark

(e) Jack dries his hair with an electric hairdryer. He does not use the hairdryer in the bathroom because it might get wet.

Why is it dangerous to use an electric hairdryer near water?

......................................................................................................................

...................................................................................................................... 1 mark

Q5. Quiz board

(a) Lori makes an electrical quiz board like the one below.

She writes a question on the flap of paper.

Then she writes four answers next to the letters A, B, C and D. Only one answer is correct.

When the wire touches the metal clip next to the correct answer, the bulb lights brightly.

When she lifts the flap of paper, you can see how the circuit is made.

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Look at the diagrams.

Which metal clip must Lori touch with the wire to complete the circuit? Tick ONE box.

A B C D 1 mark

(b) Lori removes one cell (battery) from her circuit.

How will taking one cell out of Lori’s circuit affect the bulb when it is lit?

....................................................................................................................... 1 mark

(c) Lori tries to improve the quiz board. She puts sticky tape over the metal clips A, B, C and D to keep them in place.

She tests the quiz board. It does not work.

Explain why the sticky tape stops Lori’s quiz board from working.

.......................................................................................................................

........................................................................................................................ 1 mark

Q6. Circuits

(a) The children make a working model of a lighthouse.

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The switch in the circuit is made of card and aluminium foil.

In the picture, the switch is open.

What will happen to the bulb when the switch is closed?

...................................................................................................................... 1 mark

(b) Explain why this will happen when the switch is closed.

......................................................................................................................

...................................................................................................................... 1 mark

(c) Their circuit has one battery, one bulb and one switch.

Draw a circuit diagram to show their circuit.

Use only these symbols.

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1 mark

(d) The children want the bulb to glow more brightly. They use new batteries.

In which of the circuits below would the bulb glow most brightly when the switch is closed?

Tick ONE box.

1 mark

Q7. School play

(a) Polly is in a school play.

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She is dressed as a star. The star costume has bulbs which light up.

The picture below shows the circuit that makes the star light up.

Draw a circuit diagram of the star’s circuit in the space below.

Use these symbols in your circuit diagram.

You can use each symbol more than once if you need to.

2 marks

(b) Polly wants the star to shine more brightly. She has some ideas about how she can do this.

Write yes or no next to each idea to show if Polly will see the star shine more brightly.

Idea Will the star shine more brightly? Yes or no?

add another bulb ......................

add another cell ......................

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use longer wires ...................... 1 mark

(c) Emma is in the front row at the play.

Draw ONE arrow on the diagram below to show the direction light travels for Emma to see the lights on the star.

1 mark

(d) Each time Polly appears on stage, Ali hits a triangle.

(i) What happens to the triangle for it to make a noise when it is hit?

............................................................................................................... 1 mark

(ii) What does the sound travel through to reach Emma’s ears?

.................................................. 1 mark

(e) There are lots of people watching the play. Some people are close to the stage. Some people are further away.

Describe how the distance the people are from the triangle affects the volume of the sound they hear.

........................................................................................................................

........................................................................................................................ 1 mark

Q8. The Steady Hand Game

(a) Sita has made a game. In her game, she has to move a metal ring along a piece of

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thick wire until it reaches the rest position.

When she is moving it, the metal ring must not touch the wire. If it touches the wire, a bulb will light and a buzzer will make a noise.

The metal ring and the thick wire both let electricity through.

What is the scientific name for materials that let electricity through?

...................................................................................................................... 1 mark

(b) Sita made the rest position by covering the wire with an insulating material. When she puts the metal ring down on the rest position, the bulb and buzzer cannot work.

Which materials might Sita have used to insulate the wire for the rest position?

Tick the three correct boxes.

clear sticky tape

copper wire

plasticine

newspaper

steel wool

aluminium foil

2 marks

(c) The bulb and buzzer will only work in Sita’s game when the metal ring touches the wire.

Tick ONE box to show which is the correct circuit for her game.

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1 mark

(d) To make the electrical circuit for the game, Sita uses a buzzer, a bulb and a cell (battery).

Label the symbols below by writing buzzer, bulb or cell.

.............................. .............................. .............................. 1 mark

(e) Kalinda plays the game. She thinks the buzzer should be louder.

How can Sita change her circuit so that the same buzzer makes a louder sound?

...................................................................................................................... 1 mark

Q9. Circuits and sensors

(a) Class 6D makes different circuits using the same type of bulbs, motors with fans and cells (batteries).

(i) Tick ONE box to show the circuit in which the bulb or bulbs are brightest.

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1 mark

(ii) Explain why the circuit you chose has the brightest bulb or bulbs.

............................................................................................................

............................................................................................................ 1 mark

(b) Tick ONE box to show which circuit diagram below is correct for circuit 3.

1 mark

7

(c) Each of the circuits made by class 6D has one cell.

Complete the sentence below to explain the effect on the bulbs of adding a second cell to circuit 1.

The bulbs will ............................................................................................... 1 mark

(d) Class 6D made three new circuits. They used a light sensor to measure the brightness of one of the bulbs in each circuit.

The sensor gave the results on the graph below.

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1 mark

Write A, B or C next to each circuit below to show which circuit gave each light sensor reading on the graph.

circuit .................... circuit .................... circuit .................... 1 mark

Q10. Electricity

(a) Shana builds the three circuits below. All the equipment works. The bulbs in the circuits are not lit up.

Complete each sentence to explain why the bulb has not lit in each circuit.

The bulb has not lit because the plastic spoon ............................................

...................................................................................................................... 1 mark

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The bulb has not lit because ........................................................................

...................................................................................................................... 1 mark

The bulb has not lit because ........................................................................

...................................................................................................................... 1 mark

(b) Andy builds the circuit below. The bulbs do light up.

Draw a circuit diagram for Andy’s circuit in the space below.

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Use these symbols in your circuit diagram:

1 mark

(c) Andy wants to change his circuit so that the two bulbs are brighter. He can use any other equipment.

Suggest TWO ways Andy can make his two bulbs brighter.

1. .................................................................................................................. 1 mark

2. .................................................................................................................. 1 mark

Q11. Model house

(a) A group of children are making a circuit for a door bell and lights in a model house.

The circuit symbols for the parts used in the circuit are shown below.

Write the name of each part next to its circuit symbol.

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One is done for you.

2 marks

(b) The children make this circuit.

(i) What must the children do to their circuit to turn the light bulbs and the buzzer on?

................................................................................................................ 1 mark

(ii) The buzzer only makes a quiet sound.

How could the children change the circuit to make the buzzer louder? Give TWO ways.

1 ..............................................................................................................

2 .............................................................................................................. 2 marks

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Q12. Lighthouse

(a)

George makes a model lighthouse using a cardboard tube and a yoghurt pot.

He makes a circuit to make his lighthouse light up.

The yoghurt pot lets some light through.

What is the name given to a material that lets only some light through?

___________________________ 1 mark

(b) George wants to make his lighthouse have a brighter light.

Tick ONE box to show what George could use instead of a yoghurt pot to make the lighthouse appear brighter.

plastic cup

tin can

china egg cup

part of cardboard egg box

1 mark

(c) George uses one bulb, one cell (battery) and two wires to make the circuit for his lighthouse.

Draw the circuit diagram using the correct symbols for the lighthouse.

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2 marks

(d) Write true or false next to each sentence about the circuit.

George’s circuit will only work if... True or False?

the cell is connected to the bulb. ____________

there are gaps in the circuit. ____________

he uses wires of the same length. ____________

the wires are connected to the same end of the cell.

____________

2 marks

(e) What component should George add to his circuit to make the light brighter?

___________________________________________________________________ 1 mark

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Mark schemes

Q1. (a) Award TWO marks for:

Do different cells affect the brightness of a bulb?

How many bulbs can be lit by one cell?

Does the number of cells affect the brightness of a bulb?

Does the number of switches affect the brightness of a bulb?

Does the direction of cells affect the brightness of a bulb?

If TWO marks cannot be awarded, award ONE mark for any two correct boxes ticked.

2

(b) Award ONE mark for:

1

(c) Award ONE mark for an indication that Lena should make the wires the same length, for example:

• she should cut them to the same size

• she should use wires that are the same length

ONE mark may be awarded for a response recognising why the test is not fair:

• the wires are not the same length

Do not give credit for an insufficient response indicating that the independent variable should be changed, for example:

• she should make the wires out of the same metal [the metal the wires are made from must be different]

Do not give credit for an insufficient response, for example:

• cut the wires

• make the wires the same 1

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(d) Award ONE mark for:

how quickly the bulb lights up

how bright the bulb is

how many wires there are

what metals the wires are made of

Do not give credit if the whole item is omitted and no boxes are ticked.

1

Q2. (a) Award ONE mark for an identification of a fault in the electrical circuit:

• both wires are attached to the + terminal/one side/end/part of the battery;

• it is not a complete circuit.

Allow:

• one wire should be attached to each end (of the battery).

Do not give credit for:

• it is connected wrongly [imprecise]. 1

(b) Award ONE mark for a drawn circuit which includes all three symbols as given in the question (in any order):

Allow:

[non-rectilinear circuits]

[parallel circuits, although this is beyond Key Stage 2] 1

(c) Award ONE mark for:

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A B C 1

(d) Award ONE mark for an awareness of the insulating property of plastic:

• plastic (it) does not conduct electricity;

• it is an insulator/not a conductor;

• electricity will not pass/go/travel through plastic

Do not give credit for:

• so you do not get a shock [given in question]. 1

(e) Award ONE mark for:

• the water might conduct electricity to the body*;

• you might get a shock;

• you could be electrocuted.

Allow:

• there would be a short circuit.

NOTE:

Water is not a good conductor of electricity but it is a better conductor than air.

Do not give credit for:

• Water and electricity do not mix;

• You could die;

• it is dangerous [given in question]. 1

[5]

Q3. (a) (i), (ii) Award TWO marks for generalisations (consistent with the data)

about the relationship between the two variables of wire length and bulb brightness, which use TWO comparatives:

• the longer the wire, the dimmer the light;

• the shorter the wire, the brighter the light.

Allow (for ONE or TWO marks):

• reference to the distance electricity travels (instead of the length of wire);

• reference to a ‘smaller’ wire (instead of shorter). 2

or

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If you are unable to award these TWO marks, use the following requirements to check if the response should be awarded ONE mark.

Award ONE mark for describing the brightness for only one length of wire:

• when the wire is long, the light is dim;

• when the wire is short, the light is bright.

Do not give credit for:

• reference to electricity being ‘used up’ [energy is always conserved];

• reference to speed of travel. ‘electricity takes longer to go further’;

• reference to ‘power’. 1

(b) Award ONE mark for:

5 m 5–15 m 15–25 m

25–30 m 40 m 1

[3]

Q4. (a) Award ONE mark for an understanding that the towelling is absorbent:

• it soaks up the water;

• it absorbs water (well).

Allow:

• it takes in water.

Do not give credit for an insufficient response:

• it is soft;

• it is like a sponge [does not describe the appropriate property];

• it is flexible.

Do not give credit for a response that includes incorrect science:

• it sucks up water. 1

(b) Award ONE mark for:

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• are waterproof

1

(c) Award ONE mark for:

• condensation;

• condensing.

Do not give credit for a response that includes incorrect science referring to the water droplets as steam:

• the water is steam on the window;

• steam.

Do not give credit for an insufficient response:

• cooling [the water can cool but may not necessarily condense];

• liquidise [water liquidises on melting]. 1

(d) Award ONE mark for an indication that the water (vapour) is in the air:

• water in the air.

Allow:

• water in the atmosphere.

Do not give credit for an insufficient response:

• evaporation/water vapour [does not say where the water is];

• the room. 1

(e) Award ONE mark for an awareness of the dangers caused by water conducting electricity:

• you might get an electric shock;

• because water can conduct electricity.

Allow:

• it might short circuit;

• you might be killed;

• it will explode.

Do not give credit for an insufficient response:

• it might get wet;

• it is not safe; [repetition of stem];

• electricity and water do not mix [does not explain the danger];

• it could cause a fire;

• sparks will fly.

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1

[5]

Q5. (a) Award ONE mark for:

• D 1(L3)

(b) Award ONE mark for an indication that the bulb will shine less brightly:

• the bulb will be (a bit) dimmer

• it is not as bright.

ONE mark may be awarded for:

• it will dim /fade.

Do not give credit for an insufficient response:

• it will change the brightness [does not indicate whether the brightness increases or decreases]

• the bulb/it is not so powerful

• the bulb will not light [given that it is lit]. 1(L5)

(c) Award ONE mark for an explanation that shows that sticky tape does not conduct electricity:

• the electricity cannot pass through the sticky tape

• it is an (electrical) insulator

• the metal clips conduct electricity but sticky tape does not

• the current cannot flow

• the circuit is (now) incomplete/broken.

ONE mark may be awarded for:

• it blocks the electricity

• it has stopped the electricity.

Do not give credit for an insufficient response:

• the sticky tape is not made of metal

• it cannot pass through the tape [‘it’ is ambiguous]

• the sticky tape covers the metal bits [does not indicate the effect on electricity].

1(L4)

[3]

Q6. (a) Award ONE mark for an awareness that the bulb will light:

• the light will go on;

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• the bulb will light;

• it will go on;

• it will turn on.

Allow:

• might light up. 1

(b) Award ONE mark for recognition of a complete circuit or recognition that current can flow:

• the circuit is complete;

• aluminium/the switch conducts electricity;

• electricity/current can flow through it;

• electricity runs through it/passes through;

• switch connects the circuit;

• it makes a circuit;

• full circuit;

• there is no gap in the circuit;

• the switch conducts electricity.

Do not give credit for:

• the switch is closed [given];

• the two sides touch each other. 1

(c) Award ONE mark for a drawn circuit which includes the THREE symbols:

• or non-rectilinear circuits, eg

Allow:

• reversed polarity of battery.

• Switch

Do not give credit for:

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• circuits containing symbols not given;

• circuit diagrams with gaps of more than 2mm;

• extra components;

• incorrectly drawn components, eg

– cell

– lamp 1

(d) Award ONE mark for:

1

[4]

Q7. (a) Award TWO marks for a circuit diagram drawn correctly with

2 bulbs, 2 cells and a switch [the components may be drawn in any order but the cells must be correctly orientated]:

TWO marks may be awarded for a non-rectilinear circuit or a circuit containing an obsolete symbol for a bulb:

Do not give full credit for a response that includes incorrect science:

• circuits containing symbols not given or gaps between components of more than 2mm

• circuits with extra/fewer components

• terminals on the cells facing each other

• circuits with incorrectly drawn components,

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eg: 2 (L4)

or If you are unable to award two marks, award ONE mark for a correctly drawn circuit which is missing one component or for a circuit which contains the correct components but there is one mistake in either the symbols used or how they have been connected.

1

(b) Award ONE mark for all three statements correctly classified:

add another bulb ...No...

add another cell ...Yes...

use longer wires ...No... 1 (L4)

(c) Award ONE mark for an arrow pointing from the star to Emma’s eye /head:

Do not give credit for an insufficient response showing an arrowhead in the correct orientation, but without a line showing the path of the light:

1 (L5)

(d) (i) Award ONE mark for a response recognising the triangle vibrates:

• it is vibrating.

ONE mark may be awarded for a description of vibrations where the rapid speed of movement is indicated:

• it moves up and down very quickly.

Do not give credit for an insufficient response:

• it wobbles/shakes

• it moves back and forwards. 1 (L3)

(ii) Award ONE mark for an indication that the sound travels through the air:

• air

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• gas

• atmosphere.

ONE mark may be awarded for:

• chairs

• floor.

Do not give credit for a response that includes incorrect science:

• airwaves.

Do not give credit for an insufficient response:

• triangle

• vibrations

• waves [the sound travels in the form of vibrations or waves, not through vibrations or waves].

1 (L3)

(e) Award ONE mark for a general comparison describing the relationship between the distance people are from the triangle and how loud they hear it:

• the further away the people, the quieter it will be

• the nearer, the louder

• the further away, the less well you can hear it.

ONE mark may be awarded for two specific comparisons describing the relationship:

• if you are near the triangle it will be loud, but if you are far away the sound will be quiet /soft.

Do not give credit for a response that changes one or both variables:

• the further away, the lower the sound [incorrect]

• the sound will be louder when Ali bangs the triangle harder [insufficient].

Do not give credit for an insufficient response giving a single comparison of the variables:

• it will be loud if you are close. 1 (L4)

[7]

Q8. (a) Award ONE mark for:

• conductors.

Do not give credit for a response that includes incorrect science:

• thermal conductor. 1(L4)

(b) Award TWO marks for identifying all three insulators:

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• sticky tape

• plasticine

• newspaper 2(L4)

or

If you are unable to award two marks, award ONE mark for correctly identifying any two insulators.

1

(c) Award ONE mark for:

1(L5)

(d) Award ONE mark for correctly labelling all three symbols:

bulb cell buzzer

Allow:

• battery [in place of ‘cell’]. 1(L4)

(e) Award ONE mark for an indication of an increase in voltage or that the bulb could be removed from the circuit:

• add a cell/battery;

• use a cell with a higher voltage;

• take the bulb out of the circuit;

• have two/more cells in the circuit.

Allow:

• use a stronger cell;

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• put another cell in;

• recharge the battery;

• use a new cell;

• use a more powerful battery;

• make the circuit/wire shorter/smaller.

♦ Give credit for a correct response that goes beyond the key stage 2 programme of study:

• use thicker wire;

• use less wire.

Do not give credit for an insufficient response:

• use a bigger cell [does not indicate an increase in voltage];

• make a parallel circuit;

• change the position of the buzzer in the circuit;

• remove the bulb [does not refer to the circuit]. 1(L5)

[7]

Q9. (a) (i) Award ONE mark for:

• circuit 2

1(L5)

(ii) Award ONE mark for an indication that this circuit has the least components in it (to the power supply) or that it has the least number of components compared to the other circuits:

• all the other circuits have more components/things;

• there are fewer components/things (compared to the number of cells).

Allow:

• the battery/cell has to power only one component/bulb/thing;

• the bulb does not have to share the electricity from the battery;

• there is more electricity for each component;

• there is just/only one bulb in the circuit.

Do not give credit for an ambiguous response:

• there is one bulb in the circuit [circuit 3 also has one bulb].

1(L5)

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(b) Award ONE mark for:

1(L5)

(c) Award ONE mark for indicating that the bulbs will be brighter:

The bulbs will...

• get brighter.

Allow:

The bulbs will...

• get lighter;

• blow.

Allow:

• an absolute response:

The bulbs will...

• be bright.

Do not give credit for an insufficient response:

The bulbs will...

• light (up). 1(L5)

(d) Award ONE mark for all three circuits correctly identified:

1(L5)

[5]

Q10. (a) (i) Award ONE mark for recognising that electricity does not travel

through plastic: The bulb has not lit because the plastic spoon...

• is an insulator;

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• is not a (good) conductor (of electricity);

• stops the electricity flowing;

• does not let electricity through.

ONE mark may be awarded for a response suggesting that the circuit would work if the spoon were metal: The bulb has not lit because the plastic spoon...

• is not metal.

Do not give credit for an insufficient response:

• is plastic [given];

• stops it going through [ambiguous as to what ‘it’ refers to].

1(L3)

(ii) Award ONE mark for recognising the switch is open causing a break in the circuit: The bulb has not lit because...

• the switch is open/not closed/off;

• there is a gap/break in the circuit;

• the circuit is incomplete.

ONE mark may be awarded for:

The bulb has not lit because...

• the clip is not attached to the pin;

• the switch is not connected.

Do not give credit for an insufficient response describing the equipment as faulty:

• the switch is not right.

Do not give credit for an insufficient response:

• it is not connected/joined(properly). 1(L3)

(iii) Award ONE mark for recognising that (the terminals on) one of the cells is the wrong way round: The bulb has not lit because...

• one of the cells is the wrong way round;

• the two positives are together.

ONE mark may be awarded for: The bulb has not lit because...

• the cells are the wrong way round;

• the batteries are pointing different ways;

• the batteries are pointing toward each other.

Do not give credit for an insufficient response that refers to poles on the cell:

• the same poles are facing each other [indicates that electricity is being confused with magnetism].

Do not give credit for an insufficient response:

• the batteries are not connected correctly;

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• the equipment is faulty;

• the cells are facing/pointing the same way. 1(L4)

(b) Award ONE mark for a complete circuit with the symbols correctly drawn [in any order]:

ONE mark may be awarded for a non-rectilinear circuit:

Do not give credit for a response that includes incorrect science:

• circuits containing symbols not given or gaps between components of more than 2mm;

• circuits with extra/fewer components;

• terminals on the cells facing each other;

• circuits with incorrectly drawn components, eg:

1(L5)

(c) Award TWO marks for giving any two of the following:

• add more batteries;

• use cells with a higher voltage;

• use shorter wires;

• make two separate circuits with two batteries in each.

Give credit for a correct response that goes beyond the key stage 2 programme of study indicating that wires of less resistance or a parallel circuit could be used:

• use thicker wires;

• use wires of less resistance;

• put the bulbs in a parallel circuit. 2(L5)

or

If you are unable to award two marks, award ONE mark for giving one correct response.

Marks may be awarded for:

• add another/an extra cell;

• use stronger/more powerful/new batteries;

• re-charge the cells;

• make the circuit smaller/shorter.

Do not give credit for an insufficient response indicating that

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a bulb may become brighter if the other one is removed:

• take one bulb away;

• have only one bulb.

Do not give credit for an insufficient response:

• use a bigger/different cell [does not indicate an increase in voltage];

• use two cells;

• use a new bulb [both existing bulbs must be brighter];

• use different wires/change the wires;

• use smaller wires [is ambiguous as to whether this is shorter or thinner, the latter of which is incorrect];

• use fewer/less wires [each wire could be longer].

Do not give credit for a second response that is a restatement or repetition of the first.

1

[6]

Q11. (a) Award TWO marks for all three symbols correctly named:

Do not give credit for any other electrical component named.

Do not give credit for insufficiently naming the bulb:

• light.

Do not give credit for insufficiently naming the switch:

• gate. 2

or

If you are unable to award two marks, award ONE mark for any two symbols correctly named.

1

(b) (i) Award ONE mark for an indication that the switch must be closed/the circuit is closed, e.g.

• close the switch

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• check if the switch is closed

• complete/close the circuit.

ONE mark may be awarded for:

• turn the switch on

• connect the switch.

ONE mark may be awarded for referring to the name given to the switch in part (a) if incorrect/insufficient, e.g.

• close the gate [if the switch symbol was referred to as ‘gate’ in a].

Do not give credit for an insufficient response, e.g.

• check the circuit is joined up/complete [not enough to check]

• connect the circuit.

Do not give credit for an incorrect response where the switch is named incorrectly if this is not the name given to the circuit symbol in part (a), e.g.

• close the gate. 1

(ii) Award up to TWO marks for giving any two correct responses as indicated below.

Award ONE mark for a correct response that refers to adding cells/batteries or increasing the number of cells/batteries, e.g.

• add a battery.

ONE mark may be awarded for a reference to decreasing the length of wire in the circuit, e.g.

• use shorter wires. 2

or

Award ONE mark for a correct response that refers to reducing the number of bulbs/lamps, e.g.

• take away one/both of the lamps/bulbs.

Give credit for a correct response that goes beyond the KS2 programme of study, e.g.

• increase the voltage

• use a higher volt battery.

If you are unable to award two marks, award ONE mark for any one correct response.

Do not give credit for an insufficient response implying they will replace the battery with a bigger one, e.g.

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• use a bigger battery.

Do not give credit for an insufficient response that refers to increasing the power, e.g.

• add more power.

Do not give credit for an insufficient response that contradicts the question stem, e.g.

• take away the buzzer.

Do not give credit for an insufficient response, e.g.

• make the circuit smaller.

Do not give credit for a second response that is a repetition or restatement of the first, e.g.

• 1. remove a bulb

2. remove another bulb. 1

Q12. (a) Award ONE mark for translucent.

Do not give credit for a response that includes incorrect science:

• transparent

• opaque 1

(b) Award ONE mark for:

Do not give credit if more than one box has been ticked. 1

(c) Award TWO marks for a correctly drawn circuit with one cell, wires and a bulb:

Award ONE mark for a circuit where one error/omission/mistake has been made but it is otherwise correct.

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Credit may be given for an obsolete symbol for a bulb or for a non–rectilinear circuit.

Do not give credit for an otherwise correct circuit (i.e. a complete loop) where the pupil has attempted to draw an actual picture of a cell and/or a bulb instead of the symbol.

Do not give credit for an error in the circuit that includes incorrect science:

• circuits containing gaps between components of more than 2 mm

• circuits with extra/fewer components

• circuits with incorrectly drawn components:

2

(d) Award TWO marks for:

the cell is connected to the bulb. true

there are gaps in the circuit. false

the uses wires of the same length.

false

the wires are connected to the same end of the cell.

false

If TWO marks cannot be awarded, award ONE mark for any three statements correctly identified as true or false.

2

(e) Award ONE mark for:

• cell/battery

♦ Award ONE mark for a correct response that goes beyond the key stage 2 programme of study:

• use a cell with a higher voltage

Do not give credit for an insufficient response:

• (use) a bigger/different cell/battery [does not indicate an increase in voltage and implies they are replacing the cell in the circuit]

1