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PHYSICS FORMATIVE SEM 1

Quiz by Suman Dubey

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20 questions
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  • Q1
    The unit of work is joule. The other physical quantity that has same unit is
    Energy
    Velocity
    Force
    Power
    30s
  • Q2
    The spring will have maximum elastic potential energy when it is
    neither (a) nor (b)
    (a) completely stretched 
     (b) completely compressed
    both (a) and (b)
    30s
  • Q3
    The energy possessed by an oscillating pendulum of a clock is
    Both Kinetic and Potential energy
    Cannot say
    Only Potential energy
    Only Kinetic energy
    30s
  • Q4
    The gravitational potential energy of an object is due to
    height above the earth's surface.
    Its mass
    all of the above
    acceleration due to gravity
    30s
  • Q5
    A ball is dropped from a height of 10 m. Which of the following statements best describes the energy change during the fall?
    Its potential energy is equal to the kinetic energy during the fall
    The potential energy decreases and the kinetic energy increases during the fall.
    The potential energy is 0 and kinetic energy is maximum while it is falling.
    Its potential energy increases and kinetic energy decreases during the fall
    45s
  • Q6
    If the velocity of a body is doubled its kinetic energy
    does not change         
    becomes half
    gets doubled        
    becomes 4 times
    45s
  • Q7
    A students caries a bag weighing 5 kg from the ground floor to his class on the first floor that is 2 m high. What is the work done by the boy? (g = 10 m s -2 )
    10 J
    100 J
    1 J
    1000 J
    60s
  • Q8
    The work done is said to be zero if the body is
    displaced opposite to the direction of the force applied.
    moves obliquely to the direction of the force applied
    displaced in the same direction as that of the force applied
    displaced perpendicular direction to the force applied.
    60s
  • Q9
    When a body slides down on an inclined surface, which holds true?
    It has both kinetic and potential energy
    It has no energy
    It has potential energy only
    It has kinetic energy only
    60s
  • Q10
    Which of the following is correct?
    All of the above
    A piston with compressed air possessed potential energy
    A running player acquires Kinetic Energy
    A fruit hanging from the tree possesses gravitational potential energy
    60s
  • Q11
    1 J is the amount of work done on an object when a force of 1 N displaces it along its line of action by
    100 m
    1 km
    1 cm
    1 m
    30s
  • Q12
    Newton meter per second is unit of
    Work
    Power
    Force
    Energy
    30s
  • Q13
    A dog weighing 25 kg, while chasing a cat, jumps over a fence of height 1.6 m. What is the potential energy of dog at the top of fence? (g=10 m s-2 )
    480 J
    160 J
    380 J
    320 J
    60s
  • Q14
    How much power is required to do 180 J of work in 2.4s?
    7.5 W
    75 W
    430 W
    178 W
    60s
  • Q15
    In which of the situations is NO work being done?
    lifting a box from the ground to a table top
    carrying a box up a flight of stairs
    pushing a box across the floor
    holding a box overhead
    30s

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