Across
- 4. A kettle that consumes 4000 W of power is turned on for 120 minutes. What is the electrical energy used by the kettle in kWh?
- 5. Every appliance has a power ________ that tells you how much power it consumes
- 7. The power of an appliance is usually stated in watts or _________
- 8. The unit for electrical energy used by electricity supply companies
- 10. Electrical ________ = Electrical power x time = V.I.t
- 11. If 2.0 A of current is flowing through a component with 5.0 V of PD across it, what is the power consumed by this component? _______ W
- 12. Power = Energy / ______
Down
- 1. Electric Power = Voltage x _________
- 2. The SI unit of power
- 3. When potential energy of the electrons are converted to thermal energy in a resistor, we say that power is ___________ in the resistor
- 6. An appliance will only work at the right power if it is connected to the correct __________
- 9. Power is the _______ of energy transferred/transformed