Magnetism and Electricity

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

Tags

NGSS.MS-PS2-3

A device that uses a free-moving magnetic needle to show direction is a:

• Ruler

• magnet

• compass

• magnetic field

Where is the force of attraction the strongest on a magnet?

• at the poles
• in the middle
• above the magnet
• below the magnet

_{^{The magnet's shown will}}

• not move
• attract
• repel
• all of the above

Tags

NGSS.3-PS2-3

What do the lines around this magnet represent?

• North Pole
• South Pole
• Magnetic Declination
• Magnetic Field

Which electromagnet is stronger?

• A

• B

Tags

NGSS.MS-PS2-3

Which electromagnet is stronger?

• A

• B

Tags

NGSS.MS-PS2-3

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

• wire, iron, electric
• electric, wire, iron
• iron, electric, wire
• excited, hair, apple

Which of the following will increase the strength of an electromagnet?

• Increase the voltage of the battery

• Decrease the voltage of the battery

• Wrap the coils around the core less times