Physics Practice Question and Answer
8 4 Q:
5eec76f81dab100936f0c587 4 Q:
5ef58969d7fe8173219c639a 4 Q:
5eec7bfe1dab100936f0ce9e 4 Q:
64c22eccd3a6d4481eebda27 Answer : 1. "kinetic"
4 Q:
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5f587180f13b91397f413467 4 Q:
5f86a4cdb7ad805e26c17e96 4 Q:
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Q: Who has the maximum field of vision?
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5eec76f81dab100936f0c587- 1plane mirrorfalse
- 2convex mirrortrue
- 3concave mirrorfalse
- 4All of themfalse
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Answer : 2. "convex mirror"
Q: If the resistance of a conductor is doubled , the current gets halved. This is because:
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5ef58969d7fe8173219c639a- 1I=V-Rfalse
- 2$$ I={v\over R}$$true
- 3I=VRfalse
- 4$$ I={R\over V}n$$false
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Answer : 2. "$$ I={v\over R}$$"
Q: What is the Newton / kg unit?
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5eec7bfe1dab100936f0ce9e- 1velocityfalse
- 2Gravitational potentialfalse
- 3forcefalse
- 4accelerationtrue
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Answer : 4. "acceleration"
Q: Mechanical energy is the sum of potential energy and ______ energy.
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64c22eccd3a6d4481eebda27- 1kinetictrue
- 2heatfalse
- 3electricalfalse
- 4chemicalfalse
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Answer : 1. "kinetic"
Explanation :
1. Mechanical energy is a combination of kinetic energy and potential energy.
2. Mechanical energy is defined as the sum of kinetic energy and potential energy used to do work on an object.
3. Mechanical energy is the form of energy that is related to the position and motion of an object.
Q: What is measured in cusecs?
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5f35fa7edcc3540833140951- 1Flow of watertrue
- 2Quantity of waterfalse
- 3Purity of waterfalse
- 4Depth of waterfalse
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Answer : 1. "Flow of water"
Q: The ‘Choke’ is used with a tube light is basically
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5f587180f13b91397f413467- 1An inductortrue
- 2A capacitorfalse
- 3A transformerfalse
- 4A resistorfalse
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Answer : 1. "An inductor"
Q: Mechanical Energy is:
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5f86a4cdb7ad805e26c17e96- 1The energy release during mechanical work.false
- 2The sum of kinetic energy and the potential energy of an object.true
- 3Equal to the rate of doing work.false
- 4The Energy absorbed during movement of a body.false
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Answer : 2. "The sum of kinetic energy and the potential energy of an object. "
Q: Acceleration is
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5f43812309e4377de92f37f8- 1Inversely proportional to forcefalse
- 2Directly proportional to forcetrue
- 3Directly proportional to massfalse
- 4Inversely proportional to massfalse
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Answer : 2. "Directly proportional to force "
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