Electricity

Front

Which of these materials is a good insulator?
Options: gold, copper, silver, plastic

Back

plastic

Front

In a series circuit, what will happen if the path for the electrical current is broken by a burned out bulb?

Back

The electrical current will stop flowing and none of the bulbs will light up.

Front

An electric toothbrush is an example of transforming electricity into what type of energy?

Back

motion energy

Front

In this image of a smoke detector, what part of the circuit is the switch? Options: the battery, the wire, the alarm horn, the test button, the plastic case that covers the smoke detector when it is closed.

Back

the test button

Front

In this image of a smoke detector, what part of the circuit is the resistor?

Back

the alarm horn

Front

In this image of a smoke detector, what part of the circuit is the energy source?

Back

the battery

Front

In this image of a smoke detector, what part of the circuit is the conductor?

Back

the wire

Front

In this image of a smoke detector, what part of the circuit is the insulator? Options: the battery, the wire, the alarm horn, the test button, the plastic case that covers the smoke detector when it is closed.

Back

the plastic case that covers the smoke detector when it is closed

Front

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

• a teacher blowing a whistle
• drums
• an electric piano
• a flute

Back

an electric piano

Front

Which of the following can transform electrical energy into heat? Options: a hair dryer, a warm sweater, a barbeque grill, the sun

Back

a hair dryer