Magnetic Potential Energy

Why does the Earth act like a magnet?

• because of the rocks on Earth's surface

• because it spins on its axis

• because of the molten iron and nickel in its core

• because of the heat from the sun

Where is magnetism the strongest on a bar magnet?

• north pole

• south pole

• middle of the magnet

• both north and south pole

What is an electromagnet?

• a magnet made of natural magnetic materials

• a magnet that is permanently magnetic

• a magnet created by an electric current

• a magnet that is only used in electronic devices

Which of the following images would represent the electrons of a magnet?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-3

What is the result when a magnet is cut in half?

• 2 magnets

• a magnet with only a south pole

• a magnet with only a north pole

• the magnetism is gone

What type of interaction is being demonstrated in the image?

• repulsion

• attraction

• gravity

• chemical

Tags

NGSS.3-PS2-3

NGSS.3-PS2-4

What type of interaction is being demonstrated in the image?

• repulsion

• attraction

• gravity

• chemical

Tags

NGSS.3-PS2-3

What will happen to the amount of magnetic energy between these two magnets if they were brought closer to one another?

• the magnetic energy would increase

• the magnetic energy would decrease

• the magnetic energy will remain the same

• the magnetic energy disappears

Tags

NGSS.MS-PS2-3

What will happen to the amount of magnetic energy between these two magnets if they were brought closer to one another?

• the magnetic energy would increase

• the magnetic energy would decrease

• the magnetic energy will remain the same

• the magnetic energy disappears

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following actions would increase the magnetism in an electromagnet?

• decrease the number of coils

• attach a battery with less voltage

• wrap the copper wire more times

• use an open circuit

Tags

NGSS.MS-PS2-3