Physics Questions Practice Question and Answer

Q:

Instrument for measuring blueness of the sky or ocean is called ___________.

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  • 1
    Bathymeter
    Correct
    Wrong
  • 2
    Ceraunograph
    Correct
    Wrong
  • 3
    Cyanometer
    Correct
    Wrong
  • 4
    Barometer
    Correct
    Wrong
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Answer : 3. "Cyanometer"

Q:

Which of the following is not a unit of time?

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  • 1
    light year
    Correct
    Wrong
  • 2
    leap year
    Correct
    Wrong
  • 3
    Moon month
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "light year"

Q:

When water is heated from 0°C to 4°C, its volume:

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  • 1
    first increases then decreases
    Correct
    Wrong
  • 2
    remains the same
    Correct
    Wrong
  • 3
    increases
    Correct
    Wrong
  • 4
    decreases
    Correct
    Wrong
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Answer : 4. "decreases"

Q:

What happens to the speed of a cycle when it travels on a rough surface?

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  • 1
    Increases
    Correct
    Wrong
  • 2
    Decreases
    Correct
    Wrong
  • 3
    Remains the same
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "Decreases"

Q:

Principle of fuse is – 

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  • 1
    Heating effect of electricity
    Correct
    Wrong
  • 2
    Magnetic effect of electricity
    Correct
    Wrong
  • 3
    Chemical effect of electricity
    Correct
    Wrong
  • 4
    Mechanical effect of electricity
    Correct
    Wrong
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Answer : 1. "Heating effect of electricity "

Q:

If the diameter of the capillary is doubled, then the height of the water surface in it rises-

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  • 1
    Doubles
    Correct
    Wrong
  • 2
    It remains half
    Correct
    Wrong
  • 3
    Not changed
    Correct
    Wrong
  • 4
    Becomes zero
    Correct
    Wrong
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Answer : 2. "It remains half"

Q:

The Ratio of the total distance is travelled by a body to the total time taken by it is its.

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  • 1
    Instantaneous velocity
    Correct
    Wrong
  • 2
    Linear velocity
    Correct
    Wrong
  • 3
    Average Speed
    Correct
    Wrong
  • 4
    Acceleration
    Correct
    Wrong
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Answer : 3. "Average Speed"

Q:

If the kinetic energy of a satellite is halved, its orbital radius becomes _____

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  • 1
    ½ times
    Correct
    Wrong
  • 2
    2 times
    Correct
    Wrong
  • 3
    4 times
    Correct
    Wrong
  • 4
    Infinity
    Correct
    Wrong
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Answer : 1. "½ times"
Explanation :

radius of its orbit will become half.

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