Electricity and Energy

What is the role of a conductor in an electrical circuit?

• Allows electricity to flow

• Blocks electricity

• stores energy

• creates energy

Which material is an insulator?

• copper

• plastic

• aluminium

• iron

What happens when you add more batteries to a simple circuit?

• the bulb gets brighter

• the circuit stops working

• the bulb gets dimmer

• The circuit catches fire

What type of energy transformation occurs in a lightbulb?

• Electrical to heat and ligh

• Chemical to electrical

• Kinetic to heat

• Light to electrical

Why is copper used for electrical wiring?

• it's a good conductor

• it is cheap

• it is lightweight

• it is colourful

An _________ is a material that does not allow electricity to pass through it easily.

The energy transformation in a solar panel is from _____ energy to electrical

Identify the components of a circuit.

a

b

c

d

buzzer

button

bulb

switch

wire

lemon

battery / cell

Categorise the insulators and conductors

Groups:

(a) insulator

,

(b) conductor

• 
• 
• 
• 
• 
• 

Which of the following energy sources is renewable?

• Coal

• Gas

• Solar

• Oil

• Wind