WorksheetsCHAPTER 6: Electric and Magnetism
Total questions: 20
Worksheet time: 12mins
Which of the following describe the characteristics of non-renewable energy sources?
Can be depleted if the usage is not controlled
Takes millions of years to be formed
Can not cause environmental pollution
Have limited sources
The diagram shows an apparatus.
Which of the following statements are true about the apparatus?
It is used to change a low input voltage to a higher output voltage
It alters the voltage of alternating current
It is used to change a high input voltage to a lower output voltage
It helps to reduce energy wastage during the transmission of electrical energy
The diagram shows four transformers, A, B, C and D.
Which transformer is a step - up transformer?
A
B
C
D
Where does the electric power voltage begin to be lowered in the electricity transmission and distribution system?
Substation
National power grid
Switch field
Main substation
The electrical wiring system in a home has several safety features.
Which of the following are the safety features?
The main fuse
The colour codes for different wires
The Earth Leakage Circuit Breaker
Electric meter
The diagram shows a common electrical device.
What are the safety features shown in the device.
Live wire
Earth wire
Neutral wire
Fuse
An electrical appliance is marked 800 W, 240 V.
What is the cost of using the appliance for four hours daily for a week if the cost of a unit of electricity is RM 0.20?
RM 3.30
RM 4.48
RM 50.64
RM 205.23
An electric iron is rated 1050 W, 240 V.
Which of the following is a suitable fuse rating for the iron?
1 A
2 A
3 A
5 A
The statements are about a type of energy source.
What is the energy source?
Nuclear
Water
Geothermal
Sun
What is the function of the National Grid Network?
Transmit electrical energy all over the country through high voltage cable network
Collect and channel the electrical energy to the consumers
Store voltage for emergency use
Lower the value of voltage to suit the supplied area
Some energy source are renewable while some are non - renewable.
Choose on non - renewable energy sources.
Natural gas
Water
Geothermal
Coal
Fuse rating is the minimum value of the current that can flow through it.
FALSE
TRUE
Fuse wire has a low melting point so that it can easily melt when high current passes through it.
FALSE
TRUE
Which of the following is non - renewable source of energy?
Which of the following shows the correct display on Cathode Ray Oscilloscope (C.R.O) when direct current passes through it?
Diagram below shows a process to generate induced current through relative motion of the coil with magnet.
How to prove that the induced current has been generated?
The coil becomes hot
The bar magnet becomes hot and melt
The needle of Galvanometer deflects
The needle of the Galvanometer vibrates
Which of the following is a problem related to electricity supply in life?
Our country is more dependent on non-renewable energy sources such as petroleum
Inefficient and ineffective use of electricity among the citizen
Malaysia Awareness on saving electricity is still low among Malaysians
Malaysia sells electricity to neighbouring countries to generate the economy
