Electricity

Question 1

Alternating current (AC)

Answer 1

The current generated by electrons changing the direction in which they move

Question 2

Ammeter

Answer 2

An instrument that measures current

Question 3

Circuit breaker

Answer 3

A switch that turns off a circuit if too much current flows through it

Question 4

Circuit diagram

Answer 4

Shows how all components in a circuit are connected

Question 5

Components

Answer 5

The parts of a circuit (light globes, switches, resistors, wires, globes and batteries)

Question 6

Conductor

Answer 6

A material that allows a current to pass

Question 7

Current

Answer 7

The flow of charge

Question 8

Direct current (DC)

Answer 8

The current generated by electrons always moving in one direction

Question 9

Electric circuit

Answer 9

The path down which charge flows

Question 10

Electrons

Answer 10

Tiny negative particles spinning around the nucleus of an atom

Question 11

Insulator

Answer 11

A material that blocks current

Question 12

Neutral wire

Answer 12

A wire that carries current away from the component, coated in blue plastic

Question 13

Parallel

Answer 13

When components are connected in branches adjacent to one another

Question 14

Parallel circuit

Answer 14

A circuit that has a number of branches, each with its own components

Question 15

Resistance

Answer 15

A measure of how difficult it is for current to pass, measured in ohms.

Question 16

Series

Answer 16

When components are connected with each other in a single line

Question 17

Series circuit

Answer 17

A circuit with all its components arranged in a line, forming a single loop

Question 18

Static electricity

Answer 18

The build up of electric charge

Question 19

Voltage

Answer 19

A measure of the amount of energy provided to charges or used by them, measured in volts (V)

Question 20

Voltmeter

Answer 20

An instrument that measures voltage