Ch. 20.2 - Electric Current

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Physics, Science

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9th Grade

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Jeremy Bosquez

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2 Slides • 11 Questions

Ch. 20.2

Electric Current

Multiple Choice

What is electric current?

the amount of force placed on a charge

a continuous flow of electric charge

the amount of friction inside a material

the temperature of a material

Multiple Choice

What is an electrical conductor?

a material that allows electric charges to flow through it

a material that does NOT allow electric charges to flow through it

a material that can allow charges to flow through it sometimes, but other times it doesn't

a material that is specifically made out of metal

Multiple Choice

What is an electrical insulator?

a material that allows electric charges to flow through it

a material that does NOT allow electric charges to flow through it

a material that can allow charges to flow through it sometimes, but other times it doesn't

a material that is specifically made out of rubber

Multiple Choice

True or False? Metals are good conductors

True

False

Multiple Select

Mark each material that would be a conductor.

Copper

Plastic

Rubber

Silver

Wood

Multiple Select

Mark each material that would be an insulator.

Copper

Plastic

Rubber

Silver

Wood

Multiple Select

Select each factor that would affect a material's resistance.

its length

its velocity

its temperature

its thickness

Multiple Choice

True or False? Three common voltage sources are batteries, solar panels, and generators.

True

False

Multiple Choice

True or False? According to Ohm's law, the voltage in a circuit equals the product of the energy and the resistance.

True

False

Fill in the Blanks

Type answer...

Multiple Choice

True or False? Doubling the resistance in a circuit will halve the current if voltage is held constant.

True

False

Ch. 20.2

Electric Current

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