EM TEST Study Guide

What are the forces between the following magnets pictured below?

• The attract each other

• They repel each other

• They do not react to each other

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What are the forces between the magnets pictured below?

• They attract each other

• The repel each other

• The do not react to each other

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

If a wire is carrying current, it produces a:

• Potential Energy

• Kinetic Energy

• Magnetic Field

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What happens to the electric force between two charged objects as the distance between them increases (gets bigger)?

• The force increases (gets bigger)

• The force decreases (gets smaller)

• The force remains constant

Tags

NGSS.MS-PS2-3

Electric force fields exist between charged objects when:

• only when they are touching

• only when they are touching

• even when they are not touching

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which has the strongest force between the charges?

• 
• 
• 

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Where are magnets the strongest?

• At the poles

• At the center

• They are equally strong all over

Tags

NGSS.MS-PS2-3

What is one way that you can strengthen an electromagnet?

• Turn the electromagnet off

• Remove the iron core (nail) from the electromagnet

• Increase the number of coils around the iron core (nail)

What happens to the magnetic force when you increase the number of wire turns in an electromagnet?

• The magnetic force decreases

• The magnetic force stays the same

• The magnetic force increases

Tags

NGSS.MS-PS2-3

When two objects have the same type of charge, what happens?

• They attract each other

• They repel each other

• Nothing happens