Class 9 Physics · Chapter 5 · Test 6
Final Comprehensive Board-Pattern Test
40 MCQs
40 questions · 35 min · 40 marks
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Sample questions
The first 5 of 40. Try each one, then tap to see the answer.
Question 1
Which sequence correctly describes electricity generation in a conventional fossil-fuel power station?
- AChemical energy → heat energy → turbine kinetic energy → electrical energy
- BElectrical energy → chemical energy → heat energy → turbine kinetic energy
- CGravitational potential energy → nuclear energy → electrical energy
- DSolar energy → elastic energy → electrical energy
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Answer: A
Burning fossil fuels releases chemical energy as heat; steam drives a turbine connected to a generator.
Question 2
In a hydroelectric power station, the stored water's gravitational potential energy is converted first mainly into:
- AChemical energy
- BKinetic energy
- CNuclear energy
- DElastic potential energy
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Answer: B
Water stored at height gains kinetic energy as it flows downward and turns the turbine.
Question 3
Which pair consists entirely of renewable energy sources listed in the chapter?
- ACoal and wind
- BNuclear fuel and solar
- CTidal and geothermal
- DNatural gas and wave
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Answer: C
Tidal and geothermal energy are listed as renewable sources.
Question 4
Which energy source is classified as non-renewable in the chapter despite being used to generate electricity with low direct carbon emissions during operation?
- AWind
- BNuclear fuel
- CSolar
- DTidal
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Answer: B
The chapter classifies nuclear fuel as non-renewable.
Question 5
A photovoltaic cell produces electricity by converting:
- ASunlight directly into electrical energy
- BSunlight into steam before a turbine rotates
- CChemical energy into nuclear energy
- DElectrical energy into sunlight
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Answer: A
Photovoltaic cells convert sunlight directly into electrical energy.
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