Hosted by Mrs. Jansen 100 200 400 300 400 Vocab 1Vocab 2 True or False Random 300 200 400 200 100 500 100.

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Magnets and Electricity

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Presentation transcript:

Hosted by Mrs. Jansen

Vocab 1Vocab 2 True or False Random

Row 1, Col 1 Any object with magnetic force What is a magnet?

1,2 Where the force of a magnet is strongest What is the poles?

1,3 The Earth is a giant magnet What is true?

1,4 What is the one on the right? Which picture shows the particles in a permanent magnet?

2,1 A device that changes motion into electrical energy What is a generator?

2,2 The area of force around a magnet What is magnetic field?

2,3 The poles of a magnet have the strongest attraction when they are unlike and close together What is true?

2,4 True or False? Electrical energy that can be sent long distances to a home or a business is direct current. What is false?

3,1 A coil of wire wrapped around an iron core can act as this What is an electromagnet?

3,2 Electric current that always flows in one direction What is a direct current?

The most powerful electromagnet has more turns of wire and more current What is true?

3,4 True or false? A compass needle is a thin magnet. What is true?

4,1 A magnet is used to convert sound into electrical signals What is a microphone?

4,2 Electric current that flows in one direction and then in the opposite direction. What is an alternating current?

4,3 Electromagnets are found in electric motors, speakers, generators, and compasses What is false?

4,4 Type the answ What is mechanical and electrical? In this picture, _________ energy is being turned into _________ energy.

5,1 A device that changes electrical energy into sound What is a loudspeaker?

5,2 A device that changes energy into mechanical energy What is a motor?

5,3 If you heat or cool an electromagnet, you can control it. What is false?

5,4 What is an electromagnet? Name this object in a doorbell.