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Amplify Magnetic Forces

Total questions: 23

Worksheet time: 14mins

Name
Class
Date
1.

What happens to the energy in a system of magnets when the magnetic force causes two magnets to move?

a)

The potential energy in the system increases.

b)

The kinetic energy in the system decreases.

c)

Some of the potential energy is converted to kinetic energy.

d)

Some of the kinetic energy changes to potential energy.

2.

What is kinetic energy?

a)

The energy that is stored in an object or system

b)

To push objects away from each other

c)

The energy that an object has because it is moving

d)

To move from one object to another

3.

What is potential energy?

a)

The energy that an object has because it is moving

b)

The energy that is stored in an object or system

c)

To provide evidence against a claim

d)

One of the two opposite ends of a magnet

4.

What happens to the potential energy if you were to move magnet 2 toward magnet 1?

a)

The potential energy does not change because the magnets in the system do not change.

b)

The potential energy increases because Magnet 2 moves against the magnetic force.

c)

The potential energy decreases because Magnet 2 moves against the magnetic force.

d)

The potential energy decreases because Magnet 2 moves in the same direction as the magnetic force.

5.

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

a)

Set 1 magnets will repel, set 2 magnets will attract

b)

Set 1 magnets will attract, set 2 magnets will attract

c)

Set 1 magnets will attract, set 2 magnets will repel

d)

Both sets of magnets will repel

6.

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

a)

In both sets the magnets will attract.

b)

In both sets the magnets will repel.

c)

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

d)

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

7.

Will these magnets attract or repel?

a)

Attract

b)

Repel

8.

Will these magnets attract or repel?

a)

Attract

b)

Repel

9.

Will these magnets attract or repel?

a)

Attract

b)

Repel

c)

Neither

d)

Both

10.

What will happen when these magnets are let go?

a)

The magnets will not move because they are not touching.

b)

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

c)

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

d)

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

11.

What will happen next?

a)

The trains will move closer because the magnetic force will pull the trains together.

b)

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

c)

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

d)

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

12.
A child puts two magnetic toy trains next to each other on a track. What will happen next, and why?
a)
The trains will not move.
b)
The trains will move away from each other.
c)
The trains will move closer to each other.
d)
Not enough information.
13.

How does magnetic force affect the energy in a system of magnets when the magnets are released and begin to move?

a)

The magnetic force increases the potential energy in the system.

b)

The magnetic force decreases the potential energy in the system.

c)

The magnetic force changes kinetic energy into potential energy.

d)

The magnetic force changes potential energy into kinetic energy.

14.

Which move will result in the greatest potential energy increase?

a)

Moving the cart on Track 1 one space to the right.

b)

Moving the cart on Track 2 one space to the left.

c)

Moving the cart on Track 2 one space to the right.

d)

All moves will result in the same increase in potential energy.

15.
How can magnets cause objects to have kinetic energy?
a)
A magnetic force can convert kinetic energy stored in a magnetic field to potential energy.
b)
Kinetic energy can convert potential energy stored in a gravitational field.
c)
A magnetic energy can convert potential energy stored in a gravitational field to kinetic energy.
d)
A magnetic force can convert potential energy stored in a magnetic field to kinetic energy.
16.
The ability to make things move or change
a)
Transfer
b)
Energy
c)
Convert
d)
Repel
17.
Which type of energy will be present in the scenario shown below?
a)
Potential
b)
Kinetic
c)
Neither
18.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
19.
Where is the force of attraction the strongest on a magnet?
a)
at the poles
b)
in the middle
c)
above the magnet
d)
below the magnet
20.
Earth acts like a giant magnet because its center is made up MOSTLY of
a)

granite

b)
limestone
c)
iron
d)
nickel
21.
Look closely at the magnetic field lines. Will these magnets attract or repel?
a)
Attract
b)
Repel
22.
Look closely at the magnetic field lines. Will these magnets attract or repel?
a)
Attract
b)
Repel
23.

what do magnets produce?

a)

attraction

b)

area of magnetic force called a magnetic field.

c)

a force against your hand