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...

• 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.

Tags

NGSS.MS-PS2-3

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.MS-PS2-3

What is the flow of electricity?

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

Tags

NGSS.4-PS3-2

A material in which electrons are not able to move easily 

• Circuit 
• Insulator 
• Resistance 
• Conductor

An example of a conductor is :

• a glass paperweight
• a plastic cap
• a metal screw
• a wooden handle

Whether a material is magnetic or not depends on which of the following?

• A. the material’s density
• B. the material’s mass
• C. the material’s atoms
• D. the material’s weight

As electrons move, they make

• A. electromagnetism.
• B. auroras.
• C. ferromagnetism.
• D. magnetic fields.