Heat and Electricity Heat and Electricity Review

Which material would be a Which material would be a better conductor of heat? better conductor of heat?

Wood or metal?Wood or metal?

MetalMetal

Is plastic an insulator or a Is plastic an insulator or a conductor?conductor?

InsulatorInsulator

Metals allow heat to travel Metals allow heat to travel through them easily. What through them easily. What

are they called?are they called?

ConductorsConductors

When making a circuit, what could When making a circuit, what could you do to keep the wires from you do to keep the wires from

getting too hot? Would you insulate getting too hot? Would you insulate the wires with a metallic material or the wires with a metallic material or

a rubber material?a rubber material?

Rubber MaterialRubber Material

A material that allows a A material that allows a current to pass through it current to pass through it

easily is called a easily is called a

ConductorConductor

Give an example of a Give an example of a household activity that household activity that

involves the use of radiation.involves the use of radiation.

Cooking food in a Cooking food in a microwave oven.microwave oven.

The coils on a stove cause a cooking The coils on a stove cause a cooking pot to heat up. This is an example pot to heat up. This is an example

of heat beingof heat being________ ________ from one from one object to another.object to another.

ConductedConducted

What does your winter What does your winter coat act as?coat act as?

An insulatorAn insulator

What kind of spoon would What kind of spoon would you NOT want to use to stir a you NOT want to use to stir a hot pot of soup on the stove?hot pot of soup on the stove?

MetalMetal

A current is a continuous A current is a continuous flow of electricity. What flow of electricity. What

happens when one part of a happens when one part of a circuit is not connected?circuit is not connected?

It will not allow electricity to It will not allow electricity to flow and it will not light up flow and it will not light up

the bulb.the bulb.

When you lay on the beach, When you lay on the beach, you feel the warmth of the you feel the warmth of the

sun. What type of heat sun. What type of heat transfer occurs when this transfer occurs when this

happens?happens?

RadiationRadiation

What type of material is What type of material is electrical wire typically made electrical wire typically made

out of?out of?

CopperCopper

If you want to insulate a can of soda, If you want to insulate a can of soda, which material would be the best to which material would be the best to

wrap the can in to keep it cold?wrap the can in to keep it cold?Aluminum foil, plastic wrap, was paper,

or paper towels

Paper TowelsPaper Towels

Ice skating, lighting a match, Ice skating, lighting a match, and rubbing your hands and rubbing your hands together all create heat together all create heat

from?from?

FrictionFriction

Electricity can be Electricity can be transformed into heat.transformed into heat.

True or False

TrueTrue

Electricity is a form of Electricity is a form of ______.______.

EnergyEnergy

Heat, light, and Heat, light, and transportation rely on ______.transportation rely on ______.

Electricity Electricity

What does a solar cooker What does a solar cooker use to heat food?use to heat food?

SunlightSunlight

Heat is a form of ______.Heat is a form of ______.

EnergyEnergy

Rubbing two sticks together Rubbing two sticks together is an example of producing is an example of producing

heat by _______.heat by _______.

FrictionFriction

You leave a bottle of sunscreen, a You leave a bottle of sunscreen, a bottle of water, a beach towel, and bottle of water, a beach towel, and

two quarters in the car on a hot two quarters in the car on a hot sunny day. Which item will get the sunny day. Which item will get the

hottest?hottest?

QuartersQuarters

Molecules (speed up/slow Molecules (speed up/slow down) when they are heated.down) when they are heated.

Speed upSpeed up