IS: Electricity and Magnetism

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

• refrigerator magnet
• electromagnet
• magnetite
• iron

Tags

NGSS.HS-PS2-5

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

• brighter
• stronger
• weaker
• invisible

A device that converts electrical energy into kinetic energy

• A. electromagnet
• B. electromagnetic induction
• C. electric motor
• D. electromagnetism

As electrons move, they make

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

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What uses an electromagnet to measure electric current?

• A. armature
• B. commutator
• C. galvanometer
• D. solenoid

Tags

NGSS.HS-PS2-5

Increasing the number of loops per meter in the coils of a solenoid is one way to

• A. increase the wire’s electric current
• B. strengthen the solenoid’s magnetic field.
• C. decrease the wire’s electric current.
• D. weaken the solenoid’s magnetic field.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Increasing the electric current in the wire is one way to

• A. strengthen a solenoid’s magnetic field.
• B. make an electromagnet become a solenoid.
• C. make a solenoid become an electromagnet.
• D. weaken a solenoid’s magnetic field.

Tags

NGSS.HS-PS2-5

While electric current is flowing through a wire, what surrounds the wire?

• a magnetic field
• a glowing light
• neutrons
• protons

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

How were we able to turn the electromagnet off?

• Hooking the wire up to the battery/

• Moving the battery further away from metal objects

• Disconnecting the circuit to stop current flow

Tags

NGSS.MS-PS2-3

Hans Christian Oersted observed that if we put a compass near to an electric current...

• it points to the West.
• we intensify the electric current.
• the needle moves.