9.01: Electricity and Magnetism, Part 3

​Get ready for review questions!

Multiple Choice

A device that converts chemical energy into electrical energy is call a

• battery

• conductor

• parallel circuit

• flashlight

Multiple Choice

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm
• 3 Ohms
• 4 Ohms
• 12 Ohms

Multiple Choice

Calculate the VOLTAGE through a load, if a resistance of 500 Ω that has a current of 1.4 A flowing through it.

• 70 V

• 357 V

• .0028 V

• 700 V

Multiple Choice

Magnetism is a type of ____________

• force
• book
• plant
• animal

Multiple Choice

What happens when two north poles of a magnet are placed together?

• they repel
• they attract
• they cancel each other out
• the strength of the magnet is doubled

Multiple Choice

A north pole and a south pole will attract.

• True
• False

Multiple Choice

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

Multiple Choice

A magnet cannot move which of the following objects?

• a paper clip

• an iron nail

• a wood toothpick

Multiple Choice

Every magnet has a:

• East and West pole

• North and South pole

• East and South pole

• North and West pole

• Chicago and Saint pole

Multiple Choice

What would we call a nail that can pick up a paperclip because it is touching a magnet?

• temporary magnet
• poles
• force
• detector

Multiple Choice

A type of magnet that has temporary magnetic effect when electric current flows through it.

This refer to

• Electric

• Electronic

• Electrostatic

• Electromagnet

Multiple Choice

What causes the magnetic field to form in an electromagnet?

• Electromagnets are only called magnets because electricity is involved.

• The domains of the magnet become aligned

• The magnetic field is absorbed from another magnet

• Electric current flowing in a wire

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