Year 9 Electricity Revision Quiz

What is static electricity?

• The flow of current through a circuit

• Build up of neutrons in an atom

• The build up of electrical charge on the surface of an object

• When electrons zap protons

Which of the following is an insulating material?

• Metal

• Rubber

• Copper

• Water

What makes metals good conductors of electricity?

• The atoms have loosely bound electrons allowing them to flow freely

• They really like electrical currents

• They have more electrons than other elements

• The protons can move freely through metals

Why do charges have layers of rubber or plastic around them?

• To protect the wires

• So that electrons do not escape to the external environment

• The rubber is an insulator increasing the efficiency of the charger

• All of these answers are correct

During static discharge...

• Protons move from the conductor to an insulator

• Both protons and electrons move between objects

• Electrons move from an insulator to a conductor

• Neutrons move from one object to another

What does this symbol represent?

• Battery

• Switch (Open)

• Switch (closed)

• Broken wire

What does this symbol represent?

• Battery

• Switch

• Wire

• Resistor

Voltage is...

• The flow of electrons in a circuit

• The zap created in static electricity

• When electron flow slows down in a circuit

• The push provided to create a flow of electrons

Resistance is measured in...

• Volts

• Amps

• Ohm's

• Degrees

The flow of electrons in a circuit is called a...

• voltage

• current

• wave

• static flow