Electricity and magnetism

Front

What is the purpose of a generator?

Back

To convert mechanical energy to electrical energy.

Front

What is most likely the dependent variable when investigating how changing the size of the core of an electromagnet affects its strength? Options: the number of wire coils wrapped around the core, the number of paper clips picked up by the electromagnet, the voltage of the battery used in the circuit, the size of the piece of iron used as the core.

Back

the number of paper clips picked up by the electromagnet

Front

How are fossil fuels used to generate electrical energy?

Back

Heat from burning fuel creates steam that spins a turbine.

Tags

NGSS.MS-PS1-6

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

A temporary magnet that only works when electricity is passed through wires surrounding an iron core is called:

Back

electromagnet

Tags

NGSS.MS-PS2-3

Front

What two forces are required for generators and electric motors to work?

Back

electricity and magnetism

Tags

NGSS.MS-PS2-3

Front

Generators are devices that convert _____ energy into _____ energy.

Back

mechanical; electrical

Tags

NGSS.HS-PS3-3

Front

What is the transfer of energy when you plug in a motor and it spins? Options: chemical to mechanical, electrical to mechanical, mechanical to electrical, physical to potential

Back

electrical to mechanical

Tags

NGSS.MS-PS3-5

Front

A device that protects a circuit from having too much current is called a:

switch

,

short

,

fuse or breaker

,

resistor

Back

fuse or breaker

Tags

NGSS.MS-ETS1-2

Front

Voltage

Back

the potential electrical energy or push that makes electrons flow

Front

A laptop is plugged into a 120 V outlet and uses 60 ohm's of resistance. How much current is running through it?

Back

2 Amps