1. Electricity classroom
Interactive Quiz

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

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

4. 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

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

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

7. 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.

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

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

10. 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)

11. (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)

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

13. 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

14. 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.