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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
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) Coal
(II)Oil
(III)Natural gas
(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) Overhead cables
(II)Submarine cables
(III)Underground cables
(I) only
(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.