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WorksheetsTransmission of electricity
Total questions: 14
Worksheet time: 10mins
The 3-digit secret code from today's lesson is (a)
Which of the following types of power stations is/are used in Singapore?
(Hint: more than 1 answer)
nuclear
coal-fired
oil-fired
gas-fired
Which of the following is/are disadvantages of nuclear energy?
(Hint: more than 1 answer)
It can cause deformed offsprings.
(Children who are born may have abnormal formation of body parts)
It can cause air pollution.
It can cause cancer.
It can cause nuclear burns.
What is the name of the equipment used to produce electricity in power stations?
transformer
furnace
generator
turbine
Which of the following types of power stations produces the MOST amount of air pollution?
oil-fired
nuclear
gas-fired
coal-fired
What is the electrical device that changes voltage of an alternating current (A.C.) supply?
transformer
furnace
generator
turbine
Electricity is stepped up to ............... before transmission (sent to offices or homes).
low voltage
no voltage
high voltage
same voltage (to power stations)
If electricity is transmitted at high voltage, ............
less energy is lost
more energy is lost
less energy is gained
more energy is gained
The core of a transformer is made of ........................
aluminium.
copper.
iron.
silver
A network of electrical cables and electrical substations is known as an electricity ............................
battery
grid
line
wire
Dry cells store energy in the form of ....................
chemical potential energy
electrical energy
kinetic energy
magnetic energy
Which of the pictures show the following energy conversion?
Electrical energy → light energy
Which of the pictures show the following energy conversion?
Electrical energy → heat and light energy
What is the energy conversion when you plug in a charger to charge batteries?
electrical to light
chemical potential to electrical
thermal to chemical potential
electrical to chemical potential
