Chapter 3 test-Electricity

Which of these materials is a conductor?

• rubber

• chalk

• gold

• glass

What is one use for an insulator?

• It allows electrical current to flow through

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

• It makes electrically charged objects safe to handle

• It stores electric energy for later use

Electric current can't 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 only has one loop in it

What will happen in a PARALLEL circuit if one of the loops is broken

• electric current will not flow through any of the loops

• the energy source will stop providing energy

• electric current will still flow through the unbroken loops

• electric current will still flow through the broken loop

A washing machine is an example if

• motion into electrical energy

• electricity into light

• electrical into motion energy

• heat into motion energy

Which of the following is caused by energy of motion

• resistor

• conductor

• filament

• friction

One example of a resistor is

• a power cord

• a filament

• a battery

• a parallel circuit

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

• a gas stove

• a car engine

• a toaster

• a wind turbine