Electricity classroom Interactive Quiz

1. Electricity is a phenomenon caused by the movement of protons atoms neutrons electrons

2. Electricity is a kind of electric current electric power physical phenomenon energy conversion

a spark an ionized path a big banging sound an electric field 3. When lightning occurs, _____ is created where electrons flow from the positive part of the cloud to the negative part. a spark an ionized path a big banging sound an electric field

4. When lightning is generated, the temperature of the air reaches 200℃ 2000℃ 20000℃ 200000℃

4. Scientist invented the ________to prevent deaths and injuries from lightning strikes. Thunder conductor Lightning conductor Lightning needle Thunder needle

5. The intensity of current is determined by ampere. the rate of electron flow per second. the rate of electron flow per minute. resistance of the wire.

6. Voltage is the _____ that makes current flow in a circuit. power energy force pressure

7. Power refers to the amount of ______consumed by an electrical appliance within a certain time. kinetic energy chemical energy heat energy electrical energy

8. Which of the following fossil fuels are burnt to generate electricity? (I) only Coal Oil Natural gas (I) & (II) only (II) & (III) only (I), (II) & (III)

(I) only (I) & (II) only (II) & (III) only (I), (II) & (III) 9. Electricity is transmitted through which of the following type of cables to substations in different parts of the city? (I) only Overhead cables Submarine cables Underground cables (I) & (II) only (II) & (III) only (I), (II) & (III)

10. The electrical energy consumption of an electrical appliance is measured in Volts Amperes Ohms Kilo-Watt-hours

11. The electrical energy consumption of an electrical appliance is calculated by multiplying Power by duration of use Voltage by duration of use Current by duration of use Power by current

12. Which of the following statement is NOT correct? Clean electrical appliances regularly after use. When electrical appliances are not in use, switch them to standby mode. Choose electrical appliances with energy labels Choose electrical appliances that are equipped with timer and auto switch-off function.