Module K Review

What kind of magnet can be turned on and off?

• refrigerator magnet
• electromagnet
• magnetite
• iron

Tags

NGSS.MS-PS2-3

If you wrap more coils around an electromagnet, it will become 

• brighter
• stronger
• weaker
• invisible

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NGSS.MS-PS2-3

What is created when a magnet moves through a coil of wire?

• A. an electromagnet
• B. a ferromagnet
• C. a solenoid
• D. an electric current

Tags

NGSS.HS-PS2-5

To make this electromagnet stronger you could:

• use less wire

• have fewer wire coils around the nail

• have more wire coils around the nail

• use a plastic core

Tags

NGSS.MS-ETS1-3

How do you increase the strength of an electromagnet?

• Add a motor and/or light bulbs

• Add more light bulbs and wire coils

• Add more wire coils

• Increase the voltage

A _______________ is a current-carrying coil of wire with many loops.

• magnet

• electromagnet

• solenoid

• compass

Increasing the number of coils in an electromagnet will _________ the power of the magnet.

• decrease

• increase

• not affect

Tags

NGSS.MS-PS2-3

What three minerals are attracted to a magnet?

• Gold, copper, cobalt

• Cobalt, aluminum, silver

• Iron, copper, aluminum

• Iron, nickel, cobalt

Tags

NGSS.MS-PS2-3

The voltmeter is at 0 in this image. How would you manipulate the experiment to create electricity (measured in volts)?

• Flip the magnet around so the North pole is facing out
• Move the magnet back and forth
• Take the magnet out
• Add more coils around the paper cylinder

Tags

NGSS.HS-PS2-5

In an electromagnet, coils of wire are wrapped around a magnetic object to generate a magnetic field. What the is relationship between number of coils and the strength of the magnetic field?

• The more coils an electromagntic has, the stronger the magnetic field

• The more coils an electromagntic has, the weaker the magnetic field

• The larger the metal object, the stronger the magnetic field is

• There is no relationship between number of coils and the strength of a magnetic field

Tags

NGSS.MS-PS2-3