3.1 Static And Charge

Question 1

Ampere (A)

Answer 1

The unit of current

Question 2

Battery

Answer 2

One or more cells

Question 3

Cell (electricity)

Answer 3

A device that produces a potential difference (separation of charge) from chemical reactions; what people normally call a ‘battery’

Question 4

Conventional current

Answer 4

The model where current flows from positive to negative, opposite to electron flow

Question 5

Coulomb (C)

Answer 5

The unit of charge

Question 6

Current (electric)

Answer 6

The rate of flow of charged particles (usually electrons), current =charge/time

Question 7

Electric charge

Answer 7

A property (like mass) of particle; it can be positive or negative

Question 8

Electric field

Answer 8

A region produced by charged particles or objects where charged particles of objects experience a force

Question 9

Milliamp (mA)

Answer 9

1 milliamp=1/1000 amp

Question 10

Spark

Answer 10

The breakdown of air that discharges a charged object; the heating of the air produces light and sound

Question 11

Static electricity

Answer 11

The charge that insulating objects acquire because of the transfer of electrons