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- 1. Multiple Choice
In a filament lamp, in what form is most of the energy lost?
Heat
Sound
Kinetic energy
Radio waves
- 2. Multiple Choice
What is power?
The number of repetitions of squats a body-builder can perform
The number of cylinders in a car
The rate at which energy is absorbed
The rate at which energy is transferred
- 3. Multiple Choice
What is the formula for power?
P = E⁄t
P = t⁄E
P = E⁄2t
P = 2E⁄t
- 4. Multiple Choice
Calculate the power of an appliance that uses 1000 joules of energy in 5 seconds.
100 W
200 W
300 W
400 W
- 5. Multiple Choice
Power, potential difference and current are correctly related by which equation?
P = I x V
P = 2I x V
P = I⁄V
P = I⁄2V
- 6. Multiple Choice
What is the voltage of an appliance if it uses 200 J per second when supplied with a current of 5 A?
10 V
20 V
30 V
40 V
- 7. Multiple Choice
This is the symbol for a...
Motor
Ammeter
Bulb
Voltmeter
- 8. Multiple Choice
This is the symbol for a...
Light Dependent Resistor
Light Emitting Diode
Thermistor
Cell
- 9. Multiple Choice
This is the symbol for a...
Light Emitting Diode
Fuse
Fixed Resistor
Variable Resistor
- 10. Multiple Choice
This is the symbol for a...
Bulb
Voltmeter
Ammeter
Motor
- 11. Multiple Choice
This is the symbol for a...
Light Emitting Diode
Light Dependent Resistor
Fuse
Cell
- 12. Multiple Choice
This is the symbol for a...
Fuse
Wire
Light Emitting Diode
Heater
- 13. Multiple ChoiceIn a conductor an electric current is the flow ofwaterelectronsprotonsneutrons
- 14. Multiple ChoiceThe SI unit of charge is theCoulombJouleWattNewton
- 15. Multiple ChoiceWhat is the voltage of mains electricity in the UK National Grid?120 V220 V230 VNone of these
- 16. Multiple ChoiceAdding an extra bulb in a parallel circuit makes the bulb...stay the same brightnessget dimmerget brighterblow
- 17. Multiple Choicemeasure of resistancewattohmvoltamp
- 18. Multiple ChoiceA class prepared some electrical circuits using battery, connecting wires, and three light bulbs. Which of these circuits can make the three bulbs light?ABCD
- Answer choicesTagsAnswer choicesTags