Kilowatt-hours and the cost of electricity

Question 1

Electricity costs 30p per kWh. How much does 3 kWh cost, in pence?

Answer 

Question 2

An electric heater rated at 2000 W runs for 45 minutes. Electricity costs 30p per kWh. What does it cost, in pence?

Answer 

Question 3

An oven with a power of 0.5 kW is used for 5 hours. How much energy does it transfer, in kWh?

Answer kWh

Question 4

Electricity costs 28¢ per kWh. How much does 2 kWh cost, in cents?

Answer 

Question 5

An electric heater rated at 2000 W runs for 30 minutes. Electricity costs 30p per kWh. What does it cost, in pence?

Answer 

Question 6

An oven with a power of 0.5 kW is used for 6 hours. How much energy does it transfer, in kWh?

Answer kWh

Question 7

Electricity costs 35¢ per kWh. How much does 8 kWh cost, in cents?

Answer 

Question 8

An electric heater rated at 1500 W runs for 90 minutes. Electricity costs 30p per kWh. What does it cost, in pence?

Answer 

Question 9

A heater with a power of 2.5 kW is used for 5 hours. How much energy does it transfer, in kWh?

Answer kWh

Question 10

Electricity costs 15p per kWh. How much does 12 kWh cost, in pence?

Answer 

Question 11

An electric heater rated at 1500 W runs for 15 minutes. Electricity costs 30c per kWh. What does it cost, in euro cents?

Answer 

Question 12

A games console with a power of 0.1 kW is used for 0.5 hours. How much energy does it transfer, in kWh?

Answer kWh

Question 13

Electricity costs 28c per kWh. How much does 3 kWh cost, in euro cents?

Answer 

Question 14

An electric heater rated at 3000 W runs for 120 minutes. Electricity costs 30c per kWh. What does it cost, in euro cents?

Answer 

Question 15

An oven with a power of 3 kW is used for 5 hours. How much energy does it transfer, in kWh?

Answer kWh

Question 16

Electricity costs 35¢ per kWh. How much does 2 kWh cost, in cents?

Answer