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Physics Mcqs

A body is moving with uniform velocity. Its______________________?

  • (A)  speed changes
  • (B)  acceleration changes
  • (C)  direction of motion changes
  • (D)  displacement from origin changes
Submitted By :Ali Uppal


Why Ballistic missile fails in some circumstances of precision ?

  • (A)  due to their shape
  • (B)  due to air resistance
  • (C)  due to angle of projection
  • (D)  all of these
Submitted By :Ali Uppal


Time rate of change of momentum is equal to____________________?

  • (A)  force
  • (B)  impulse
  • (C)  velocity
  • (D)  both A and C
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Flight of a rocket in the space is an example of______________________?

  • (A)  second law of motion
  • (B)  third law of motion
  • (C)  first law of motion
  • (D)  law of gravitation
Submitted By :Ali Uppal


Submitted By :Ali Uppal


What is the angle of projection for which the range and maximum height become equal ?

  • (A)  tan-1 ¼
  • (B)  tan-1 4
  • (C)  tan-1 ½
  • (D)  tan-1 2
Submitted By :Ali Uppal


Taking off rocket can be explained by __________________?

  • (A)  1st law of motion
  • (B)  2nd law of motion
  • (C)  Law of conservation of momentum
  • (D)  law of conservation of energy
Submitted By :Ali Uppal


Which shows the correct relation between time of flight T and maximum height H ?

  • (A)  H=gT2/8
  • (B)  H=8T2/g
  • (C)  H=8g/T2
  • (D)  H=gT2
Submitted By :Ali Uppal


What is the shape of velocity, time graph for constant acceleration ?

  • (A)  straight inclined line.
  • (B)  parabola
  • (C)  inclined curve
  • (D)  declined curve
Submitted By :Ali Uppal