Electromagnets

Object that becomes a magnet through process called magnetization.

• temporary magnet

• permanent magnent

An electric generator is a power source that spins a wire loop in a mechanical field causing charges to move in the wire.

• true

• false

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What can you do to make an electromagnet stronger?

• Add more coils

• add another battery

• increase the current

• add shorter wires

A machine that changes electrical energy into mechanical energy

• electromagnetic generator

• electric motor

• electric machine

• electrical magnent

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NGSS.MS-ETS1-1

Magnetic force will depend on:

*more than one answer

• size of magnet

• length of magnet

• material of magnet

• distance from magnet

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NGSS.MS-PS2-3

what are some uses for electromagnets:

• door bells

• gas gauge

• Sri machine

• CD players

Tags

NGSS.MS-PS2-3

what is a magnet?

• an object that attracts metal

• Objects that exert an invisible force called magnetic force

• wire with a south and North Pole

• electric generator with magnetic force

Tags

NGSS.MS-PS2-3

What is a closed circuit?

• closed conducting loop that allows electricity to flow continuously

• a wire that allows electrons to pass

• a loop that allows electricity to flow when it isn't closed

• a closed loop that allows ohms to flow out

what is ohms law?

• rv=I

• ivr=r

• IV=R

• V=IR

An example of a power source is a magnet.

• true

• false