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WorksheetsSCIENCE c6,7
Total questions: 30
Worksheet time: 13mins
Gravitational potential energy
Elastic potential energy
Kinetic energy
Potential energy
Potential energy
Kinetic energy
Gravitational potential energy
Elastic potential energy
Kinetic energy
Elastic potential energy
Potential energy
Gravitational potential energy
Elastic potential energy
Potential energy
Kinetic energy
Gravitational potential energy
Potential energy means
energy stored in an object
energy possessed by a moving object
Kinetic energy
energy of an object
Kinetic energy means
Kinetic energy
Potential energy
energy possessed by a moving object
energy stored in an object
Gravitational potential energy means
work done to lift an object
work done to compress an elastic object
work done to stretch an elastic object
work done to put down an object
Elastic potential energy means
work done to lift an object
work done to put down an object
work done to compress an elastic object
work done to throw an object
1 kg = ( )Newton
10
100
0.1
0.01
Acceleration due to gravity
g= ( ) ms−2
10
100
0.1
0.01
The diagram shows how electrical energy is produced.
What does Q represent?
The water is heated until steam is produced and the turbine is rotated.
The water rotates a motor, which will then rotate a generator.
A mixture of steam and gas is heated until they expand and the turbine is generated.
The water rotates a turbine, which will then rotate a generator.
Which of the following describe the characteristics of non-renewable energy sources? (3 answers)
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? (3 answers)
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? (2 answers)
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. (2 answers)
Live wire
Earth wire
Neutral wire
Fuse
The statements are about a type of energy source.
What is the energy source?
Nuclear
Water
Geothermal
Sun
Which of the following uses single - phase wiring?
Industrial area
Shopping mall
Hotel
Homestay
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.(2 answers)
Natural gas
Water
Geothermal
Coal
Which of the following is non - renewable source of energy?
Fuse wire has a low melting point so that it can easily melt when high current passes through it.
FALSE
TRUE
A device had been installed in a circuit causing the reading of the voltage supplied in the circuit to increase from 20 V to 100 V.
What is the device?
Resistor
Dry cell
Transformer
Fuse
What is the value of secondary voltage?
40 V
80 V
120 V
240 V
Which of the following is not a renewable energy source?
Nuclear energy
Hydro energy
Biomass energy
Solar energy
Di antara yang berikut, yang manakah yang BENAR mengenai transformer?
Which of the following is TRUE about transformer?
Transformer mengubah voltan bagi arus terus untuk memenuhi keperluan voltan yang berbeza.
Transformer changes the voltage for direct current to meet the different voltage requirements.
Transformer mengubah voltan bagi arus ulang-alik untuk memenuhi keperluan voltan yang berbeza.
Transformer changes the voltage for alternating current to meet the different voltage requirements.
Transformer hanya mampu menurunkan voltan ke nilai yang bersesuaian mengikut keperluan.
The transformer is only capable of lowering the voltage to the appropriate value as required.
Pilih satu atau lebih kenyataan yang benar mengenai transformer.
Select one or more statements that are true about transformers.(3 answers)
Transformer injak naik menaikkan voltan arus ulang-alik.
Step-up transformer raises the alternating current voltage.
Transformer injak turun mempunyai lilitan gegelung primer yang lebih banyak berbanding gegelung sekunder.
Step-down transformer has more windings on the primary coil than the secondary coil.
Transformer injak turun menurunkan voltan arus terus.
Step-down transformer lowers the direct current voltage.
Transformer injak naik mempunyai lilitan gegelung sekunder yang lebih banyak berbanding gegelung primer.
Step-up transformer has more windings on the secondary coil than the primary coil.
Apakah perubahan bentuk tenaga yang terjadi ketika penghasilan tenaga elektrik dengan menggunakan petroleum atau gas asli?
What are the changes in the form of energy that occur when generating electricity using petroleum or natural gas?
Tenaga haba - tenaga kimia - tenaga kinetik - tenaga elektrik
Heat energy - chemical energy - kinetic energy - electrical energy
Tenaga keupayaan - tenaga kimia - tenaga haba - tenaga elektrik
Potential energy - chemical energy - heat energy - electrical energy
Tenaga kimia - tenaga kinetik - tenaga haba - tenaga elektrik
Chemical energy - kinetic energy - heat energy - electrical energy
Tenaga kimia - tenaga haba - tenaga kinetik - tenaga elektrik
Chemical energy - heat energy - kinetic energy - electrical energy
Apakah fungsi pemutus litar bocor ke bumi (ELCB)?
What is the function of earth leakage circuit breaker (ELCB)?
Mengawal jumlah arus yang mengalir melalui litar di dalam rumah.
Controls the amount of current flowing through the circuit in the house.
Mengasingkan litar akhir ke bahagian peralatan elektrik.
Isolates the final circuit to the electrical appliances.
Memutuskan litar apabila berlaku litar pintas.
Disconnect the circuit in the event of short circuit.
Memutuskan litar apabila arus berlebihan mengalir melaluinya.
Disconnect the circuit when excess current flows through it.
