Electricity and magnetism Assessment

The building up of electrons that is made by rubbing two or more objects together resulting in charged particles is known as:

• Conductor

• Static electricity

• Current electricity

• Insulator

A substance or material that allows electricity to flow through it is called a:

• Conductor

• Static electricity

• Current electricity

• Insulator

A material that does NOT allow electricity to flow through it is known as:

• Conductor

• Static electricity

• Current electricity

• Insulator

The flow of electric charges through wire (man made) is referred to as:

• Conductor

• Static electricity

• Current electricity

• Insulator

True or False: In order to flow, current electricity requires a circuit.

• True

• False

Which of the following objects would be the best conductor of electricity?

• a peanut

• a piece of paper

• a basketball

• a staple

Which of the following objects is most likely to be a conductor of electricity?

• an iron nail

• a wooden shelf

• a plastic spoon

• a rubber tire

The image below shows a device that can be used to test whether an object is an electrical conductor. Which of the following describes the best method of using the device to test whether a particular object is an electrical conductor?

• Touch the object to only one of the metal terminals.

• Remove the batteries, and place the object in the battery case.

• Touch the object to both metal terminals at the same time.

• Disconnect the light bulb, and connect the object to one of the two wires where the light bulb was.

Which of the following would be best to replace the X in the table?

• a plastic stick rubbed with wool attracts rice grains

• a battery-powered toy robot starts to move

• a computer cord is plugged into an outlet

• a flashlight is turned on using a switch

Which of the following objects is the best insulator of electricity?

• Spoon

• Wooden chair

• Paperclip

• Coins