Quiz about Magnetic Fields Guide Questions

Question 1

What happens when like poles of two magnets face each other?

Accepted Answer

They repel

Answer

They attract

Answer

Nothing happens

Answer

They become demagnetized

Question 2

What surrounds a magnet and causes a magnetic force?

Accepted Answer

Magnetic field

Answer

Gravity

Answer

Electric current

Answer

Static electricity

Question 3

Why is the strength of a magnetic field greater nearer to the magnet?

Accepted Answer

The field lines are more concentrated

Answer

The magnet is more powerful up close

Answer

Gravity There is less air resistance

Answer

The magnetic poles are stronger near the magnet

Question 4

Which of the following can be used to show the shape of a magnetic field?

Accepted Answer

Iron filings

Answer

Water

Answer

Salt

Answer

Copper wire

Question 5

What tool can be used to show the direction of magnetic field lines?

Accepted Answer

Compass

Answer

Ruler

Answer

Thermometer

Answer

Barometer

Question 6

If you place small compasses around a bar magnet, what would you expect to observe?

Accepted Answer

Compass needles aligning with the magnetic field lines

Answer

All compass needles pointing in the same direction

Answer

Compass needles repelling from the magnet

Answer

No movement in the compass needles

Question 7

What is the difference between permanent and temporary magnets?

Accepted Answer

Permanent magnets are always magnetic, temporary magnets loses megnetism

Answer

Temporary magnets can only attract, not repel

Answer

Permanent magnets are stronger than temporary magnets

Answer

Permanent magnets are man-made, temporary magnets occur naturally

Question 8

What happens to an iron paperclip when placed near a permanent magnet without touching it?

Accepted Answer

It becomes an induced magnet

Answer

It becomes permanently magnetized

Answer

It repels the permanent magnet

Answer

Nothing happens to the paperclip

Question 9

Why can you create a chain of paperclips hanging from a magnet?

Accepted Answer

Each paperclip becomes an induced magnet

Answer

The paperclips are naturally magnetic

Answer

The paperclips become permanently magnetized

Answer

The magnet's strength increases with each paperclip

Question 10

What happens to the induced magnetism in a nail when it's removed from a permanent magnet?

Accepted Answer

It disappears

Answer

It reverses polarity

Answer

It becomes stronger

Answer

It remains the same

Question 11

How would the strength of a magnetic field change as you move further away from a magnet?

Accepted Answer

It would decrease

Answer

It would increase

Answer

It would remain constant

Answer

It would fluctuate randomly

Question 12

Which of the following BEST describes the direction of magnetic field lines?

Accepted Answer

From North pole to South pole

Answer

Circular around the magnet

Answer

From South pole to North pole

Answer

Perpendicular to the magnet's surface

Question 13

If you could see magnetic field lines, how would they appear near the poles compared to the center of a bar magnet?

Accepted Answer

More concentrated near the poles

Answer

Absent near the poles

Answer

Evenly distributed throughout

Answer

More spread out near the poles

Question 14

What determines the strength of the magnetic force between two magnets?

Accepted Answer

Both the distance and strength of the magnets

Answer

Only the distance between them

Answer

Only the strength of each magnet

Answer

The temperature of the surrounding environment

Question 15

Why might iron filings arranged around a magnet not give a complete picture of the magnetic field?

Accepted Answer

They don't show the direction of the field

Answer

Iron filings are too heavy

Answer

Iron filings are not magnetic

Answer

They interfere with the magnetic field

Question 16

What would happen to the magnetic field if you cut a bar magnet in half?

Accepted Answer

Each half would have its own North and South pole

Answer

The field would disappear

Answer

The field would become twice as strong

Answer

One half would be North, the other South

Question 17

How does the concept of magnetic fields explain why magnets can attract objects without touching them?

Accepted Answer

The magnetic field extends beyond the physical magnet

Answer

Magnets release invisible particles

Answer

Air becomes magnetized between objects

Answer

Gravity increases between magnetic objects

Question 18

Which of these materials is most likely to become an induced magnet?

Accepted Answer

Iron

Answer

Plastic

Answer

Copper

Answer

Aluminum

Question 19

How would you expect the magnetic field around an electromagnet to differ from that around a permanent magnet?

Accepted Answer

It could be turned on and off

Answer

It would be weaker

Answer

It would only attract, not repel

Answer

It would have only one pole

Question 20

If you had a very powerful magnet, how might its magnetic field affect a compass several meters away?

Accepted Answer

It might cause slight inaccuracies in the compass reading

Answer

It would demagnetize the compass

Answer

It wouldn't affect the compass at all

Answer

It would completely override Earth's magnetic field

Question 21

The area of magnetic force around a magnet is known as its _____________.

Accepted Answer

magnetic field

Answer

magnetic declination

Answer

magnetic fan lines

Answer

magnetic tan lines

Question 22

A ________ is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.

Accepted Answer

compass

Answer

calculator

Answer

ruler

Answer

map

Question 23

Which way will the magnets move after they are released?

Accepted Answer

Away from each other

Answer

Towards each other

Answer

Not enough information

Question 24

How would you label pole 3 in the picture below?

Accepted Answer

South because it is being repelled from pole S across from it.

Answer

North because it is being attracted to pole N across from it.

Answer

South because it is being attracted to pole N across from it.

Answer

North because it is being repelled from pole N across from it.

Question 25

Based on the magnetic field line diagrams, what will happen next with these two sets of magnets?

Accepted Answer

The magnets in Set 1 will repel, and the magnets in Set 2 will attract.

Answer

The magnets in Set 1 will attract, and the magnets in Set 2 will repel.

Answer

The magnets in Set 1 will not move, and the magnets in Set 2 will attract.

Answer

In both sets, the magnets will attract.

Question 26

Which image shows magnets repelling each other?

Accepted Answer

Option B is correct

Answer

A.

Question 27

Which image shows magnets being attracted together?

Accepted Answer

Option A is correct

Answer

B.

Question 28

Look closely at the magnetic field lines. Will these magnets attract or repel?

Accepted Answer

Repel

Answer

Attract

Question 29

The image above shows how iron filings respond to magnetic fields generated by two magnets with ____________ poles facing each other.

Accepted Answer

like

Answer

opposite

Answer

positive

Answer

negative

Question 30

The image above shows how iron filings respond to magnetic fields generated by two magnets with ____________ poles facing each other.

Accepted Answer

opposite

Answer

like

Answer

positive

Answer

negative

Question 31

Which answer describes the pictures correctly?

Accepted Answer

The left drawing shows attraction and the right drawing shows repulsion of magnetic forces.

Answer

Both drawings show attraction of magnetic forces.

Answer

The left drawing shows repulsion and the right drawing shows attraction of magnetic forces.

Answer

Both drawings show repulsion of magnetic forces.

Question 32

Eli is holding two magnets close to each other. What will happen when he lets go?

Accepted Answer

The magnets will move away from each other because the magnetic force will push the magnets apart.

Answer

The magnets will not move because the magnets are not touching.

Answer

The magnets will move closer to each other because the magnetic force will pull the magnets together.

Answer

The magnets will move away from each other because the magnets are not touching.

Question 33

Why does a compass needle point north?

Accepted Answer

Because the North end of the compass lines up with the Earth's magnetic south pole

Answer

The compass is a bar magnet

Answer

Because north is up and you know that up is always north or the stratosphere.

Answer

Because it's magic

Question 34

North and South Pole attract to each other

Accepted Answer

True

Answer

False

Question 35

What would happen to the magnetic field if you cut a bar magnet in half?

Accepted Answer

Each half would have its own North and South pole

Answer

The field would disappear

Answer

The field would become twice as strong

Answer

One half would be North, the other South

Magnetic Fields Guide Questions

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