Power Bill Calculations

Calculate the energy used in kilowatt-hours when a 1200 W microwave is used for 0.5 hours.

• 0.6 kWh

• 6 kWh

• 60 kWh

• 600 kWh

How many kilowatt-hours are used by a 400 W fan running for 12 hours?

• 4.8 kWh

• 48 kWh

• 480 kWh

• 0.48 kWh

If a space heater uses 1500 W and runs for 6 hours, how many kilowatt-hours of energy are used?

• 9 kWh

• 90 kWh

• 900 kWh

• 0.9 kWh

Calculate the energy consumption in kilowatt-hours for a device that uses 200 W for 15 hours.

• 3 kWh

• 30 kWh

• 300 kWh

• 0.3 kWh

Calculate the energy consumption in kilowatt-hours for a device that uses 1500 W for 2 hours.

• 0.3 kWh

• 3 kWh

• 30 kWh

• 300 kWh

Calculate the power consumption in kilowatt-hours for a 1000 W iron used for 3 hours.

• 3 kWh

• 30 kWh

• 0.3 kWh

• 300 kWh

A refrigerator uses 800 W and runs for 24 hours. How many kilowatt-hours of energy does it consume?

• 19.2 kWh

• 1.92 kWh

• 192 kWh

• 0.192 kWh

If a 60 W light bulb is used for 10 hours, what is the energy consumption in kilowatt-hours?

• 0.6 kWh

• 6 kWh

• 60 kWh

• 0.06 kWh

Calculate the energy used in kilowatt-hours when a 500 W computer runs for 8 hours.

• 4 kWh

• 40 kWh

• 0.4 kWh

• 400 kWh

How many kilowatt-hours are used by a 2000 W air conditioner running for 5 hours?

• 10 kWh

• 1 kWh

• 100 kWh

• 0.1 kWh