Chapter 4

Question 1

Electricity in circuits

Answer 1

Static electricity

Electric fields

Question 2

Static electricity

Answer 2

When some insulators are rubbed together electrons are transferred.

Question 3

Gain of electrons =

Answer 3

Negatively charged

Question 4

Loss of electrons =

Answer 4

Positively charged

Question 5

Current

Answer 5

the rate of flow of charge

Question 6

Potential difference

Answer 6

the energy transferred by one coulomb of charge

Question 7

Resistance

Answer 7

a measure of how much a components reduces the current passing through it

Question 8

Equation for potential difference

Answer 8

V = I x R

V – volt (V)
I – ampere (A)
R – ohm (Ω)

Question 9

Series circuits

Answer 9

Current - Same everywhere
Potential difference - Shared between components
Resistance - Resistances add together

Question 10

Parallel circuits

Answer 10

Current - Shared between the different routes.
Potential difference - Same across each different route.
Resistance - Total resistance is lower than the individual resistors

Question 11

Equation for resistance

Answer 11

V = I x R