Physics Questions Practice Question and Answer

Q:

In case of negative work the angle between the force and displacement is-

730 0

  • 1
    Correct
    Wrong
  • 2
    45°
    Correct
    Wrong
  • 3
    90°
    Correct
    Wrong
  • 4
    180°
    Correct
    Wrong
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Answer : 4. "180°"

Q:

The sum of the change in kinetic and potential energy is always-

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  • 1
    Zero
    Correct
    Wrong
  • 2
    Positive
    Correct
    Wrong
  • 3
    Negative
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "Zero "

Q:

When a heated electric bulb glows -

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  • 1
    Electrical energy is completely converted into light.
    Correct
    Wrong
  • 2
    Electrical energy is partly converted into light energy and partly into heat energy
    Correct
    Wrong
  • 3
    Light energy is converted into electrical energy.
    Correct
    Wrong
  • 4
    Electric energy is converted into magnetic energy .
    Correct
    Wrong
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Answer : 2. "Electrical energy is partly converted into light energy and partly into heat energy "

Q:

Which of the following laws is associated with the heating effect of electric current?

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  • 1
    Joule's law
    Correct
    Wrong
  • 2
    Ohm's law
    Correct
    Wrong
  • 3
    Faraday's law
    Correct
    Wrong
  • 4
    Newton's law
    Correct
    Wrong
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Answer : 1. "Joule's law "

Q:

An object of mass 13 kg is moving with a uniform velocity of 5 ms-1. What is the kinetic energy possessed by the object?

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  • 1
    187.5 J
    Correct
    Wrong
  • 2
    17.5 J
    Correct
    Wrong
  • 3
    162.5 J
    Correct
    Wrong
  • 4
    162.5 ms
    Correct
    Wrong
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Answer : 3. "162.5 J"

Q:

Pressure is measured in terms of

831 0

  • 1
    Mass and Density
    Correct
    Wrong
  • 2
    Work done
    Correct
    Wrong
  • 3
    Force and Area
    Correct
    Wrong
  • 4
    Force and Distance
    Correct
    Wrong
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Answer : 3. "Force and Area"

Q:

When ray of light goes from denser to rarer medium then it –

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  • 1
    Bends towards the normal
    Correct
    Wrong
  • 2
    Bends away from the normal
    Correct
    Wrong
  • 3
    Goes Straight
    Correct
    Wrong
  • 4
    Reflected back
    Correct
    Wrong
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Answer : 2. "Bends away from the normal "

Q:

Pressure inside a soap bubble is-

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  • 1
    More than atmospheric pressure
    Correct
    Wrong
  • 2
    Less than atmospheric pressure
    Correct
    Wrong
  • 3
    Equal to atmospheric pressure
    Correct
    Wrong
  • 4
    Half of atmospheric pressure/
    Correct
    Wrong
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Answer : 1. "More than atmospheric pressure"

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