Electromagnetism Review

What kind of magnet can be turned on and off? (Man-made magnet)

• refrigerator magnet
• electromagnet
• magnetite
• iron

If you wrap more coils around an electromagnet, it will become...(think about the Webquest.)

• brighter
• stronger
• weaker
• invisible

How do like poles interact with each other? (north to north)

• They repel each other.
• They attract each other.
• Throw a toaster into a bathtub.
• No relationship.

Choose the best option to complete this gap:
A magnetic field is the ________ around a magnet in which the magnetic force acts.

• pole
• electron
• area
• iron

Tags

NGSS.MS-PS2-3

When you put the poles of two magnets together they will either attract or repel each other.  Which of these sentence is correct?

• If the two poles are the same the magnets repel each other.
• If the two poles are the same the magnets attract each other.
• If the two poles are different the magnets repel each other.

Tags

NGSS.3-PS2-3

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Opposite poles _____ .

• attract
• push away
• are balanced
• transfer electrons

What is the flow of electricity?

• electric motor
• Electric current
• Electric eel
• electric circuit

What is the attraction and repulsion of magnetic materials called?

• A. electric generator
• B. magnetism
• C. solenoid
• D. electromagnet

Tags

NGSS.MS-PS2-5

A material in which electrons are not able to move easily 

• Circuit 
• Insulator 
• Resistance 
• Conductor

An example of an insulator is:

• iron
• silver
• copper wire
• rubber

Tags

NGSS.MS-PS3-3