Electricity

Which of these materials is a conductor?

• rubber

• chalk

• glass

• gold

What is one use for an insulator?

• It stores energy for use later

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

• It allows current to flow through it

• It makes electrically charged objects safe to handle

Electric current cannot flow in a series circuit if

• there is a break in the circuit

• the circuit contains an insulator

• 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?

• current will not flow through any loops

• current will still flow through the broken loop

• current will still flow through the unbroken loops

• the energy source won't provide anymore energy

A washing machine is an example of transferring

• electricity into motion energy

• motion energy into electric energy

• electricity into light

• heat into motion energy

Which of the following is caused by energy of motion?

• friction

• resisitor

• conductor

• filament

One example of a resistor is

• a parallel circuit

• a battery

• a filament

• a power cord

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

• a car engine

• a toaster

• a gas stove

• a wind turbine

If a rubber eraser is placed between the battery and one of the wires connected to it in a series circuit what will happen?

• The circuit will still work becuase it doesn't matter if one part doesn't work

• It will not work because the eraser acts as an insulator and the electricity cannot flow through it

In a flashlight the light bulb is a..... ( resistor, conductor, energy source, or insulator)