Zainhub Notes updated chapter 3 MCQs of physics of fsc part 1. The chapter 3 includes various concepts relating speed, displacement, velocity and momentum.
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Chapter 3 Motion and Force Notes
1. A body covering equal displacement in equal interval of time possesses:a) Variable velocity
b) Uniform acceleration
c) Uniform velocity
d) None of above
2. Instantaneous and average velocities become equal when body:
a) Has zero acceleration
b) Has uniform velocity
c) Has variable velocity
d) Moves in a circle
3. When the velocity-time graph is a straight line parallel to time axis then:
a) Acceleration is const
b) Acceleration is variable
c) Acceleration is zero
d) Velocity is zero
4. The slope of the velocity-time graph is:
a) Acceleration
b) Distance
c) Force
d) Momentum
5. The area between the velocity-time graph and the time axis is numerically equal to:
a) Velocity
b) Distance
c) Time
d) Acceleration
6. If the slop of velocity-time graph gradually decreases, then the body is said to be moving with:
a) Positive acceleration
b) Negative acceleration
c) Uniform velocity
d) Variable velocity
7. If the slop of velocity-time graph gradually increases, then the body is said to be moving with:
a) Positive acceleration
b) Negative acceleration
c) Uniform velocity
d) Variable velocity
8. What is the shape of velocity time graph for constant acceleration?
a) Straight line
b) Parabola
c) Inclined curve
d) Declined curve
9. When the object is moving towards earth, the value of “g” is taken as:
a) Positive
b) Negative
c) Zero
d) None
10. Change in momentum is called:
a) Force
b) Impulse
c) Acceleration
d) Torque
11. The time rate of change of momentum is called:
a) Force
b) Impulse
c) Acceleration
d) Torque
12. The property of a body due to which it opposes its state of rest or uniform motion is called:
a) Momentum
b) Inertia
c) Torque
d) Weight
13. Which law of motion is also called law of inertia?
a) 1st law
b) 2nd law
c) 3rd law
d) 4th law
14. The inertia of an object is the quantitative measure of its:
a) Volume
b) Density
c) Mass
d) Temperature
15. Momentum depends upon.
a) Force act on the body
b) Mass of the body
c) Velocity of the body
d) Both mass and velocity of the body
16. An alternate unit to −1 is:
a) Js
b) Ns
c) Nm
d) N
20. Which of the following pair has same direction always?
a) Force, displacement
b) Force, velocity
c) Force, acceleration
d) Force, momentum
21. A snooker ball moving with velocity v collides head on with another snooker ball of same mass at rest. If the collision is elastic, the velocity of the second snooker ball is:
a) Zero
b) Infinity
c) V
d) 2V
22. 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
23. The trajectory (or path) of a projectile is:
a) Straight line
b) Parabola
c) Hyperbola
d) Circle
24. A football player will throw a football at a maximum distance if the angle of projection is:
a) 300
b) 450
c) 600
d) 900
25. Range of a projectile on a horizontal plane is same for the following pair of angles:
a) 300 and 600
b) 200 and 800
c) 00 and 450
d) 100 and 900
29. Motion of projectile is _____________ dimensional.
a) One
b) Two
c) Three
d) Four
31. During projectile motion, the horizontal component of velocity:
a) Changes with time
b) Becomes zero
c) Remains constant
d) Increases with time
32. The range of projectile is same for angles of projection:
a) 30° and 45°
b) 45° and 60°
c) 50° and 45°
d) 30° and 60°
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