Electricity

Question 1

ammeter

Answer 1

A device for measuring electric current in a circuit.

Question 2

Atom

Answer 2

A tiny particle containing protons and neutrons in a nucleus, and electrons.

Question 3

Attract

Answer 3

Be pulled together, for example, opposite poles of a magnet attract and positive and negative charges attract.

Question 4

Battery

Answer 4

Two or more electrical cells joined together

Question 5

Cell

Answer 5

A chemical store of energy, which provides the push that moves charges around a circuit.

Question 6

Charged up.

Answer 6

When materials are rubbed together, electrons move from one surface to the other.

Question 7

Current

Answer 7

Flow of electric charge, usually electrons, in amperes (A).

Question 8

Conductor

Answer 8

A material that allows current to flow through it easily, and has a low resistance.

Question 9

Insulator

Answer 9

A material that does not allow current to flow easily, and has a high resistance.

Question 10

Electrical charge

Answer 10

A property of a material, the electric charge can be positive, negative, or neutral.

Question 11

Electric field

Answer 11

A region where a charged material or particle experiences a force.

Question 12

Electron

Answer 12

Tiny particles that are part of atoms and carry a negative charge.

Question 13

electrostatic force

Answer 13

Non-contact force between two charged objects.

Question 14

lightning

Answer 14

Occurs when electrons jump from one charged area to another and produce a big current.

Question 15

Negative charge

Answer 15

An object that has gained electrons as a result of the charging process.

Question 16

Neutral

Answer 16

Describes an object or particle that has no charge, or in which positive and negative charges cancel out, giving no overall charge.

Question 17

Ohms

Answer 17

The units of resistance, symbol Ω.

Question 18

Parallel

Answer 18

If some components are in separate loops in an electric circuit.

Question 19

positively charged

Answer 19

An object that has lost electrons as a result of the charging process.

Question 20

Potential difference/ voltage

Answer 20

The amount of energy shifted from the battery to the moving charge, or from the charge to circuit components, in volts (V).

Question 21

repel

Answer 21

Be pushed away from each other, for example, like magnetic poles repel or like electric charges repel.

Question 22

resistance

Answer 22

A property of a component, making it difficult for charge to pass through, in ohms (Ω).

Question 23

series

Answer 23

If components in a circuit are in the same loop in an electric circuit.

Question 24

Voltmeter

Answer 24

A device for measuring potential difference (voltage).

Question 25

Volts

Answer 25

Unit of measurement of potential difference (voltage), symbol V.