Electricity Test

Which of the materials is a conductor?

• rubber

• chalk

• gold

• glass

Tags

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What is one use for an insulator?

• It slows down the flow of the electric current to produce heat and light.

• It stores electric current to flow through it.

• It allows electric current to flow through it.

• It makes electrically charged objects safe to handle.

An electric current cannot flow in a series circuit if

• the circuit contains an insulator.

• there is a break in the circuit.

• the circuit contains a resistor.

• the circuit has only one loop in it.

What will happen in a parallel circuit if one of its loops is broken?

• electric current will not flow through any of its loops

• electric current will still flow through the broken loop

• electric current will still flow through the unbroken loops

• the energy source will stop providing energy to move electric charges

A washing machine is an example of transforming

• electricity into motion energy

• motion energy into electric energy

• electricity into light

• heat into motion energy

Tags

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Which of the following is caused by the energy of motion?

• resistor

• friction

• conductor

• filament

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One example of a resistor is

• a power cord.

• a parallel circuit.

• a battery.

• a filament.

Which of the following uses resistors to transform electricity into heat?

• a toaster

• a car engine

• a gas stove

• a wind turbine

Tags

NGSS.MS-PS3-3