Unit 5 Test - 5.4 Electricity

Name:

Sue was asked to bring items from home that would be good conductors of electricity. Which of the following items below should she bring?

• a metal necklace
• copper wire
• aluminum foil
• a paper clip
• wooden blocks

What type of material will NOT allow electric current to pass through it?

• Insulator
• Conductor
• Open
• Parallel

If there was a break in a circuit, which of the following materials could be placed in the gap to complete the circuit?

• Metal
• Rubber
• Glass
• Paper

Which would be the best conductor of electricity?

• air
• rubber
• water
• cork

The electrician in this picture is wearing rubber gloves for protection. The purpose of the rubber gloves is to —

• keep the electrician dry
• produce electricity
• insulate the electrician
• create an electrical circuit

The primary role of the wire in the circuit is to

• conduct electricity.
• produce heat.
• provide energy.
• convert light

Students build a simple electrical circuit by attaching wires to a battery, a lamp, and a switch. They close the switch as shown. When the students open the switch, the lamp:

• becomes hot.
• lights up.
• becomes dim.
• turns off.

A student is investigating the transfer of electrical energy in a circuit. In which circuit will electrical energy light the bulb?

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A fourth grade class assembled this circuit. Which of the following describes the circuit below?

• Parallel circuit
• Open circuit
• Closed circuit
• Double circuit