Quiz about Magnetism

Question 1

What will happen when these magnets are brought close together?

Accepted Answer

They will repel each other.

Answer

They will attract each other.

Answer

Both magnets will turn to the left

Answer

Both magnets will turn to the right

Question 2

Where on a magnet is the magnetic force the strongest?

Accepted Answer

at the poles

Answer

in the middle

Answer

above the magnet

Answer

below the magnet

Question 3

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

Accepted Answer

they repel

Answer

they attract

Answer

they cancel each other out

Answer

the strength of the magnet is doubled

Question 4

True or False: All metals are attracted to magnets

Accepted Answer

False

Answer

True

Question 5

Which of the following is true about a bar magnet?

Accepted Answer

It is surrounded by a magnetic field.

Answer

Its magnetic field is strongest near its center.

Answer

The north pole is stronger than the south pole.

Answer

The south pole is stronger than the north pole.

Question 6

This is a picture of a ________________ magnet.

Accepted Answer

horseshoe

Answer

bar

Answer

circle

Answer

paddle

Question 7

The force of magnetism is stronger when magnets are ________________

Accepted Answer

closer together

Answer

cold

Answer

round

Answer

farther apart

Question 8

Does a plastic straw stick to a magnet?

Accepted Answer

no

Answer

yes

Question 9

Which statement is true?

Accepted Answer

All Magnets have a North and South Pole

Answer

All magnets can attract large objects

Answer

Magnets can not pull through Solids.

Answer

All Magnets have the Same shape and Size

Question 10

Which part of the Magnet is Strongest?

Accepted Answer

Poles

Answer

Center

Answer

Sides

Question 11

Magnets are _____ to objects that contain Iron, Nickel, Cobalt or Steel

Accepted Answer

Attracted

Answer

Repelled

Question 12

The Earth is the Largest Magnet of All.

Accepted Answer

True

Answer

False

Question 13

A student has four items - an iron bar, a light bulb, a battery, and wire. Which of these items does the student need to make an electromagnet?

Accepted Answer

a. battery, iron bar, wire

Answer

c. iron bar, light bulb, and wire

Answer

c. iron bar, light bulb, and wire

Answer

d. iron bar, light bulb, and battery

Question 14

Which is a property of electromagnets AND bar magnets?

Accepted Answer

c. have a north pole and a south pole

Answer

a. include an electric source

Answer

b. created by an electric current

Answer

d. have a magnetic field that can be strengthened or weakened

Question 15

An electromagnet can only work if it has _____________

Accepted Answer

electric current

Answer

magnetic poles

Answer

a switch

Answer

a bar magnet

Question 16

How is an electromagnet different from a bar magnet?

Accepted Answer

an electromagnet can be turned on and off

Answer

An electromagnet has only one pole

Answer

An electromagnet does not attract iron

Answer

an electromagnet does not have a magnetic field

Question 17

A junkyard needs a magnet to separate iron and nickel scraps from other items. The scraps will be placed in a container for recycling. A manager is deciding whether to purchase an electromagnet or a bar magnet. Which is the BEST reason to choose an electromagnet or a bar magnet?

Accepted Answer

An electromagnet because it can be turned on and off

Answer

An electromagnet because it attracts iron and nickel

Answer

A bar magnet because it is a permanent magnet

Answer

A bar magnet because it is stronger than an electromagnet

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