Review Chapter 3 Electricity

Which of these materials is a conductor?

• rubber

• chalk

• gold

• glass

What is one use for an insulator?

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

• It stores electricity for later use.

• It allow electric current to flow through it.

• It makes electrically charged objects safe to handle.

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 only has 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 the 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

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

• resistor

• friction

• conductor

• filament

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