GCSE Electricity in the home Assessment

What is the name given to part a?

• Earth wire

• Fuse

• Live wire

• Neutral wire

What is the name given to part b?

• Earth wire

• Fuse

• Live wire

• Neutral wire

What is the name given to part c?

• Earth wire

• Fuse

• Live wire

• Neutral wire

A 700W hairdryer is used on a 240V mains supply. What fuse is required to keep the user safe?

• 2 A

• 3 A

• 5 A

• 13 A

A 8kW cooker is used on a 240V mains supply. What fuse is required to keep the user safe?

• 1 A

• 13 A

• 30 A

• 40 A

What does this symbol tell you about an appliance?

• No fuse needed

• Double insulation

• Metal casing

• No live wire

Which wire should the fuse be connected to?

• Earth wire to create a surge if a fault occurs

• Live wire to break the circuit if a fault occurs

• Neutral wire to draw all the current away from the appliance if a fault occurs

• None of the above

A 100 W bulb is used for 1 hour. How many units of electricity are used?

• 0.1 units

• 100 units

• 6000 units

• 36000 units

A 720 W microwave is used for 15 minutes. The cost of electricity is 15p per unit. What is the cost of using the microwave?

• 2.7 p

• 27 p

• £0.27

• £2.70

What is the function of this components

• To protect the user from electric shock

• To take a surge of current to the Earth wire if a fault occurs

• To make or break the circuit

• To take the electricity back to the grid