How can magnets cause objects to have kinetic energy?

A magnetic force can convert potential energy stored in a magnetic field to kinetic energy.

A magnetic force can convert kinetic energy stored in a magnetic field to potential energy.

Kinetic energy can convert potential energy stored in a gravitational field.

A magnetic energy can convert potential energy stored in a gravitational field to kinetic energy.

A child moves a magnet towards another magnet that cannot move. What happens to the potential energy in the system of magnets?

Potential energy increases because the blue magnet train moves against a magnetic force.

Potential energy decreases because the blue magnet train moves in the same direction as the magnetic force.

Potential energy decreases because the blue magnet train moves against the magnetic force.

Potential energy does not change because the magnets in the system do not change.

How does a system of magnets store potential energy in the magnetic field?

The energy used to move a magnet against (opposite direction as) a magnetic force.

The energy used to move a magnet with (same direction as) a magnetic force.

Magnets get their potential energy from kinetic energy.

Are the magnetic field lines in the picture correct?

Yes, because they point from north to south.

No, because they point from north to south (they're supposed to go the other way).

Yes, because the North pole is on the left in all pictures.

No, because the North pole is on the left in all pictures (it's supposed to be on the right).

To pull objects close to each other

to push objects away from each other

to change from one type to another

a type of magnet in which the magnetic field is produced by an electric current

to push objects away from each other

to pull objects close to each other

the ability to make things move

the space around a magnet in which magnetic forces can act on objects

one of the two opposite ends of a magnet

to provide evidence that goes against a claim

to push objects away from each other

to move from one object to another or one place to another

something that can be changed and may be measured

to move from one object to another or one place to another

a set of interacting parts forming a complex whole

to push objects away from each other

to provide evidence that goes against a claim

an object, diagram, or computer program that helps us

when two objects come close together

one of the two opposite ends of a magnet

an object, diagram, or computer program that helps us understand something by making it simpler or easier to see

the space around a magnet in which magnetic forces can act on objects

the ability to make things move or change

Based on the magnetic field lines diagram, what will happen to these two sets of magnets?

Set 1 magnets will repel, set 2 magnets will attract

Set 1 magnets will attract, set 2 magnets will attract

Set 1 magnets will attract, set 2 magnets will repel

Both sets of magnets will repel

What will happen when these magnets are let go?

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

The magnets will not move because they are not touching.

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

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

Based on the magnetic field lines diagram, what will happen next with these sets of magnets?

In Set 1 the magnets will attract and in Set 2 the magnets will repel.

In both sets the magnets will attract.

In both sets the magnets will repel.

In Set 1 the magnets will repel and in Set 2 the magnets will attract.

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

Reverse the poles of the magnet.

Remove all the coils and the nail.

Magnetic Fields Review

Authored by Samantha Lazear

Science

6th - 8th Grade

NGSS covered

Used 37+ times

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45 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When potential energy is increased, it is because a magnet is moving ____________

against the magnetic force

the same direction as the magnetic force

nowhere

Tags

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When potential energy is decreased, it is because a magnet is moving ___________

against the magnetic force

the same direction as the magnetic force

nowhere

Tags

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A child puts two magnetic toy trains next to each other on a track. What will happen next, and why?

The trains will not move.

The trains will move away from each other.

The trains will move closer to each other.

Not enough information.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A child sets identical magnetic carts on tracks. At the end of each track is a large magnetic train that cannot move. The child uses her hand to slide the carts on each track. Which of these movements will result in the greatest decrease in potential energy?

Moving the cart on Track A one space to the left <

Moving the cart on Track B one space to the left <

Moving the cart on Track B one space to the right >

These movements each have the same change in potential energy because they each move the car the same distance.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A train engineer is working with two identical magnetic roller coaster cars on different sides of a center magnet that cannot move. The engineer can only move one car one space. Which movement will result in the largest increase in potential energy?

Moving the blue car one space toward the center magnet.

Moving the green car one space away from the center magnet.

Moving the green car one space toward the center magnet.

These movements each have the same change in potential energy because they move the roller coaster car the same distance.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A child sets identical magnetic carts on tracks. At the end of each track is a large magnetic train that cannot move. The child uses her hand to slide the carts on each track. Which of these movements will result in the greatest increase in potential energy?

Moving the cart on Track A one space to the left <

Moving the cart on Track B one space to the left <

Moving the cart on Track B one space to the right >

These movements each have the same change in potential energy because they each move the car the same distance.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which way will the magnets move after they are released?

Towards each other

Away from each other

Not enough information

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

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Magnetic Fields Review

When potential energy is increased, it is because a magnet is moving ____________

When potential energy is decreased, it is because a magnet is moving ___________

A child puts two magnetic toy trains next to each other on a track. What will happen next, and why?

A child sets identical magnetic carts on tracks. At the end of each track is a large magnetic train that cannot move. The child uses her hand to slide the carts on each track. Which of these movements will result in the greatest decrease in potential energy?

A train engineer is working with two identical magnetic roller coaster cars on different sides of a center magnet that cannot move. The engineer can only move one car one space. Which movement will result in the largest increase in potential energy?

A child sets identical magnetic carts on tracks. At the end of each track is a large magnetic train that cannot move. The child uses her hand to slide the carts on each track. Which of these movements will result in the greatest increase in potential energy?

Which way will the magnets move after they are released?

How can magnets cause objects to have kinetic energy?

The ability to make things move or change

A train engineer is working with two identical magnetic roller coaster cars on different sides of a center magnet that cannot move. The engineer can only move one car one space. Which movement will result in the largest increase in potential energy?

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