Year 4 Electricity Revision

Select the objects that use mains electricity

Select the correct words to make the sentences make sense.

Electricity is the flow of an ​ (a)   or charge through a material.

Many everyday ​ (b)   rely on electricity for them to work. An appliance is a piece of equipment or device designed to do a job, e.g. a washing machine or a fridge.

Some appliances need to be plugged into a socket (​ (c)   ) while others require ​ (d)   to make them work. A battery is a device that stores ​ (e)   as a chemical.

• electric current
• appliances
• mains electricity
• batteries
• electrical energy

Choose true or false for the statement.

To generate means to reduce.​ (a)  

Lightening and static electricity are examples of electricity occurring naturally but for us to use electricity to power appliances, we must make it. ​ (b)  

Coal, oil and natural gases are fossil fuels which can be used to generate electricity when cooled. ​ (c)  

Electricity can be generated from wind power and hydroelectric power. The sun’s rays can be converted into electricity by solar panels. ​ (d)  

• false
• true

Answer explanation

(Generate means to make or produce.)

(When burned, they produce heat which can be used to generate electricity.)

Label the different parts of an electrical circuit below

c

d

e

f

b

a

lamp/bulb

buzzer

switch

cell

motor

wires

Can you give an example of a renewable energy source?

Evaluate responses using AI:

OFF

Answer explanation

wind power, hydro power, solar

power, nuclear power, geothermal power.

Can you give an example of a non-renewable energy source?

Evaluate responses using AI:

OFF

Answer explanation

Accept any of the following fossil fuels: coal, oil, natural gas.

Draw a simple circuit that includes a cell, wires, a bulb and a switch. Label your circuit

Will the bulb light? Why/why not?

Evaluate responses using AI:

OFF

Answer explanation

no

The switch is open so this breaks the circuit

and stops the bulb from lighting.

Will the bulb light? Why/why not?

Evaluate responses using AI:

OFF

Answer explanation

no

There is no cell. This is the power source.

Will the bulb light? Why/why not?

Evaluate responses using AI:

OFF

Answer explanation

yes

There is a cell and a closed switch allowing

the flow of electrons to light the bulb.