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Magnets

Last updated about 11 hours ago

22 questions

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Question 1

1.

What is the force that attracts metal to other metals called?

electricity

nuclear

magnetism

gravity

Question 2

2.

What is the region around a magnet where it’s magnetism acts known as?

iron core

south pole

north pole

magnetic field

Question 3

3.

What happens when two north poles of magnets are placed together?

They repel.

They attract.

The strength of the magnet is doubled.

They create an electric current.

Question 4

4.

Which of these metals are NOT attracted to a magnet?

nickel

rock

cobalt

iron

Question 5

5.

What characteristics do magnetic substances have?

They can be very heavy.

They are always black and cold to the touch.

They fall faster than other objects when you drop them.

They can push or pull objects they are not touching.

Question 6

6.

Earth's magnetic field and bar magnets both attract particles to the same
location. Where are they?

All around the outside.

The North and South poles.

The middle.

First to the middle, then to the ends.

Question 7

7.

What must happen for an electromagnet to have a magnetic field?

It must be heated.

It has to be touching another magnet.

It must be connected to an electrical source.

It must be lined up with Earth’s magnetic field.

Question 8

8.

How can an electromagnet be made stronger?

Increase the voltage.

Add an iron core.

Add more coils of wire.

All the above.

Question 9

9.

Two like poles will....

Attract

Repel

Do nothing

Explode

Question 10

10.

What type of magnet can be turned on and off?

Natural

Permanent 

Temporary

Electromagnet

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Question 17

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Question 20

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Question 11

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Question 12

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Question 18

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Question 19

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Question 21

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Question 22

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