General Science - Physics MCQs

Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examinations.

31. 1 nautical mile is equivalent to which of the following?

[A] 1.44 x 1000 m
[B] 1.852 x 100 m
[C] 1.852 x 1000 m
[D] 1.44 x 100 m

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32. What is the S.I unit of Pressure Energy?

[A] Nm
[B] Watt
[C] Joule
[D] No units

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33. Light year is a unit of which of these following?

[A] distance
[B] time
[C] pressure
[D] power

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34. Joule/kg is the S.I unit of which of these physical quantities?

[A] Entropy
[B] Permittivity of free space
[C] Latent heat
[D] Gas constant

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35. The Newton’s third law is applicable when:

[A] bodies are at rest
[B] bodies are in motion
[C] bodies are in the air
[D] bodies are at rest or in motion

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36. The second law of motion gives us a measure of which of the following physical quantities?

[A] Acceleration
[B] Force
[C] Power
[D] Work done

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37. Which of the following statements is correct about the value of acceleration due to gravity (g) in a light and heavy falling body?

[A] the value of g will be greater in the light body
[B] the value of g will be greater in the heavy body
[C] the value of g will be equal in both the bodies
[D] the value of g depends on the mass

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38. What is the value of Universal Gravitational Constant?

[A] 6.67×10-9 N–m2 kg–2
[B] 6.67×10-10 N–m2 kg–2
[C] 6.67×1011 N–m2 kg–2
[D] 6.67×10-11 N–m2 kg–2

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39. The acceleration due to gravity on any planet does not depend on which of the following?

[A] Radius of the planet
[B] Mass of the planet
[C] Density of the planet
[D] Mass of the object

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40. On which of the following the escape velocity of a body does not depend?

[A] Mass of the body
[B] Radius of the planet
[C] Mass of the planet
[D] None of the above

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