Student Objective• To explain how energy

transformations produce electricity

1

Warm Warm UpUpWhat are the 2 things needed to generate electricity?

2

Electric Motors• An electric motor transforms electrical energy

into mechanical energy.

3

The generator is opposite of the

motor !

4

MECHANICAL

ENERGY

ELECTRICAL

ENERGY

5

MOTOR

BOTH

GENERATOR

Name: Date: Class:

magnetscoils

magnet

coil

Pg. 88-89

Pg. 98-99

6

MOTOR

BOTH

GENERATOR

Name: Date: Period:

Changes electrical into mechanical energy.

Very useful and found in many everyday appliances.

Contains an electromagnet AND a permanent magnet.

Runs on electricity or battery

Contain permanent magnets and coils of wire.

Both spin.Are opposites.Both involve AC or DC current.

Changes mechanical energy into electrical energy.

Needs motion to operate.

Used in power plants to make most electricity used today.

Contain permanent magnets

8

Graphic Organizer

which is the opposite of

is applied in a

turned by a large

transforms electrical energy into

producing

Electromagnetism

Electric current

9

Graphic Organizer

Electric motor

Electromagnetism

which is the opposite of

is applied in a

turned by a large

transforms electrical energy into

producing

Generator

Turbine Electric currentMechanical

energy

BRAINPOP• BrainPOP | Electromagnets

• BBC - KS3 Bitesize: Science - Magnets and effects of electric current

**Click “Sound off” & “Subtitles On”

• Next take the “test” at the bottom of the webpage or click the link below.

BBC - KS3 Bitesize Science - Magnetism and electric currents : Test

12

•Discovery Education: Future Power virtual lab

•http://www.wonderville.ca/asset/save-the-world

Finished Early?

Finished Early?

• Click Arrow button to continue.

ippex online

• Click “Download”, then “open”. View both tabs at top: Magnet & Electromagnet

Magnets and Electromagnets - Magnetism, Magnetic Field, Electromagnets – PhET

14

• PhET Energy Skate Park - Conservation of Energy, Kinetic Energy1. Click “Download”

2. Check box for “Show Pie Chart”

3. Check box for “Bar Graph”

Complete Energy Skate Park worksheet