WorksheetsElectricity
Total questions: 20
Worksheet time: 10mins
Identify all conductor(s) in below
clothes
sulphuric acid
gold ring
graphite
Identify all insulator(s) below.
Tick if the following unit(s) is correct.
Current: Volts (V)
Voltage: Amperes (A)
Resistance: Ohms (Ω)
If lamp 1 is unscrewed from its holder, what will happen to lamp 2?
It will get brighter
It will get dimmer
It will turn off
Nothing
What is wrong with this circuit diagram?
There is only one cell
The ammeter should be connected in series
A ammeter should be connected in parallel
Electrical current is a flow of
Protons
Neutrons
Electrons
If one of the light bulbs burns out,
no electricity flow through the other bulbs
other bulbs can still light up
other bulbs will go out
other bulbs also burn out
Which of the following describes the circuit correctly?
A circuit with a cell, two bulbs connected in parallel with an open switch
A circuit with a cell, two bulbs connected in series and an open switch
A circuit with a cell, two bulbs connected in series
A circuit with a cell, two bulbs connected in series and a closed switch
Which of the following is the correct match of different types of electrical hazards and its cause?
Damaged insulation: plugging too many appliance to a single mains socket
Overloaded circuits: wear and tear of wires
Damp conditions: using electrical appliances with wet hands or in a wet place
Damaged insulation: overheating of wires
Which of the following is NOT a safety feature in our home electricity system?
circuit breakers
earth wires
fuses
switches
Which of the following is/ are strategy(ies) that could reduce wastage of electrical energy?
Use energy saving lamps
use natural light and ventilation
switch off electrical appliances that you are not using
use appliances which are energy efficient
When the above appliance is operating, is electricity converted to:
heat energy
sound energy
light energy
mechanical energy
When the above appliance is operating, is electricity converted to:
heat energy
sound energy
light energy
mechanical energy
When the above appliance is operating, is electricity converted to:
heat energy
sound energy
light energy
mechanical energy
Which of the following could provide electricity?
Which of the following represents the energy conversion in power stations?
Chemical energy of fossil fuels --> Heat (Thermal energy) --> Kinetic energy of steam in boiler --> Kinetic energy of turbine --> Electrical energy
Chemical energy of fossil fuels --> Kinetic energy of steam in boiler --> Heat (Thermal energy) --> Electrical energy --> Kinetic energy of turbine
Chemical energy of fossil fuels --> kinetic energy of turbine --> Kinetic energy of steam in boiler --> Heat (Thermal energy) --> electrical energy
Which of the following is / are advantage(s) of using solar energy?
stable source of energy
large amount of electricity is generated
less pollution
