Physics Practice Question and Answer

Q:

'Bar' is the unit of

1867 1

  • 1
    temperature
    Correct
    Wrong
  • 2
    heat
    Correct
    Wrong
  • 3
    current
    Correct
    Wrong
  • 4
    atmospheric pressure
    Correct
    Wrong
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Answer : 4. "atmospheric pressure"

Q:

An object is in static equilibrium when it is ________.  

1856 5

  • 1
    moving in a circular path
    Correct
    Wrong
  • 2
    at rest
    Correct
    Wrong
  • 3
    moving with uniform velocity
    Correct
    Wrong
  • 4
    accelerating at high speed
    Correct
    Wrong
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Answer : 2. "at rest "

Q:

The product of mass and velocity of an object is called-

1855 0

  • 1
    momentum
    Correct
    Wrong
  • 2
    acceleration
    Correct
    Wrong
  • 3
    volume
    Correct
    Wrong
  • 4
    density
    Correct
    Wrong
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Answer : 1. "momentum"

Q:

is a scalar?

1783 0

  • 1
    Force moment
    Correct
    Wrong
  • 2
    energy
    Correct
    Wrong
  • 3
    momentum
    Correct
    Wrong
  • 4
    All these
    Correct
    Wrong
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Answer : 2. "energy"

Q:

Transformer is used for -

1777 0

  • 1
    To step up DC voltage
    Correct
    Wrong
  • 2
    To step up or step-down AC voltages
    Correct
    Wrong
  • 3
    Converting AC into Dc
    Correct
    Wrong
  • 4
    Converting DC into AC
    Correct
    Wrong
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Answer : 2. "To step up or step-down AC voltages"

Q:

Satellite is kept moving in its orbit around the Earth, it is due to – 

1765 0

  • 1
    Gravitational Force or lack of it
    Correct
    Wrong
  • 2
    Some other Forces
    Correct
    Wrong
  • 3
    Centrifugal Force
    Correct
    Wrong
  • 4
    Centripetal Force
    Correct
    Wrong
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Answer : 4. "Centripetal Force "

Q:

What is the unit of measurement of ampere?

1760 0

  • 1
    Current
    Correct
    Wrong
  • 2
    resistance
    Correct
    Wrong
  • 3
    Power
    Correct
    Wrong
  • 4
    voltage
    Correct
    Wrong
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Answer : 1. "Current"

Q:

What is the decibel level of sound produced by two persons in conversation? 

1741 0

  • 1
    About 30 decibels
    Correct
    Wrong
  • 2
    About 100 decibels
    Correct
    Wrong
  • 3
    About 5 decibels
    Correct
    Wrong
  • 4
    About 10 decibels
    Correct
    Wrong
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Answer : 1. "About 30 decibels "

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