Free Force and Motion MCQs with Answers
1,416 Force and Motion MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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1,416 questions · page 7 of 71
- A. Circular
- B. Made of two straight line segments
- C. Hyperbolic
- D. Parabolic
Explanation: After being thrown, the stone has constant horizontal velocity and constant downward acceleration due to gravity.
Correct answer: Parabolic- A. 4.00 s
- B. 5.00 s
- C. 6.00 s
- D. 7.00 s
Explanation: Taking upward as positive, the stone's height is h = 59.4 m + 19.6 m/s × t - 4.9 m/s^2 × t^2.
Correct answer: 6.00 s- A. Mass of the jumper
- B. Height of jump
- C. Angle of projection
- D. None
Explanation: For a projectile launched and landing at the same level, the horizontal range depends on the projection angle through R = u² sin(2θ)/g.
Correct answer: Angle of projection- A. equal to 45 deg
- B. equal to 90 deg
- C. equal to each other
- D. none of the above
Explanation: The range of a projectile is R = u² sin(2θ)/g. For 30 degrees, R = u² sin(60 degrees)/g, and for 60 degrees, R = u² sin(120 degrees)/g…
Correct answer: equal to each other- A. straight line
- B. parabola
- C. hyperbola
- D. circle
Explanation: A projectile has constant horizontal velocity and uniformly downward vertical acceleration due to gravity; combining these motions gives a…
Correct answer: parabola- A. a gas filled ballon
- B. bullet fired from gun
- C. a football kicked
- D. a base ball shot
Explanation: A projectile moves mainly under gravity after being launched, as do a fired bullet, kicked football and hit baseball.
Correct answer: a gas filled ballon- A. 45
- B. 60
- C. 30
- D. none
Explanation: The range of a projectile on level ground is R = u² sin 2θ/g. This is maximum when sin 2θ = 1, so 2θ = 90° and θ = 45°.
Correct answer: 45- A. tan-1 ¼
- B. tan-1 4
- C. tan-1 ½
- D. tan-1 2
Explanation: For a projectile, range R = u² sin 2θ/g and maximum height H = u² sin²θ/(2g).
Correct answer: tan-1 4- A. H=gT2/8
- B. H=8T2/g
- C. H=8g/T2
- D. H=gT2
Explanation: For a projectile, the time of flight is T = 2u sin θ/g, while its maximum height is H = u² sin²θ/(2g).
Correct answer: H=gT2/8- A. Vector quantity
- B. Scalar quantity
- C. Dimensionless quantity
- D. None of these
Explanation: Correct option is A.Acceleration is a vector quantity. This means that you include direction while describing acceleration.
Correct answer: Vector quantity- A. 200 m
- B. 400 m
- C. 800 m
- D. 1600 m
Explanation: The acceleration of the car is constant as it undergoes uniformly increasing velocity.
Correct answer: 800 m- A. Magnitude only
- B. Direction only
- C. Magnitude and direction
- D. No unit is required
Explanation: Option A) Magnitude only is incorrect because displacement does not just include the magnitude or amount of the change in position, but…
Correct answer: Magnitude and direction- A. The car travels 20 km due east.
- B. The car travels 60 km due east, then turns around and travels 40 km due west.
- C. The car travels 70 km due east.
- D. The car travels 30 km due west, then turns around and travels 30 km due east.
Explanation: We know that average velocity = total displacement/total time.The car travels 30 km due west, then turns around and travels 30 km due…
Correct answer: The car travels 30 km due west, then turns around and travels 30 km due east.134. Displacement is a:
- A. Tensor
- B. Vector
- C. Scalar
- D. None of these options is correct
Explanation: Option A) Tensor is not correct because tensors are mathematical objects that can describe physical quantities that have multiple…
Correct answer: Vector- A. 2000 m/s
- B. 2 m/s
- C. 20 m/s
- D. 200 m/s
- E. 100 m/s
Explanation: The principle of conservation of momentum states that the total momentum of an isolated system remains constant.
Correct answer: 2 m/s- A. 1
- B. 0.5
- C. 1.3
- D. 1.67
Explanation: The area of the end of the cylinder is given by:A = (π/4)d2where d is the diameter of the cylinder.Substituting the given values, we get:A…
Correct answer: 1.67- A. E
- B. E/2
- C. E/4
- D. E/8
Explanation: At the highest point of its motion, the projectile will only have the horizontal component of its initial velocity.
Correct answer: E/4- A. Cos θ : 1
- B. Sin θ : 1
- C. Sin θ : cos θ
- D. Cos θ : sin θ
- E. Sin θ : tan θ
Explanation: Let the initial velocity be u and the angle of projection be θ.The time of flight for a body projected at an angle θ with the horizontal…
Correct answer: Sin θ : cos θ- A. acceleration
- B. displacement
- C. force
- D. power
Explanation: Multiplying velocity by time gives displacement, so the area under the curve accumulates it, with area below the axis counting as…
Correct answer: displacement- A. MLT-2
- B. ML2T-2
- C. ML2T2
- D. ML-2T-2
Explanation: From Newton's second law, force = mass x acceleration. Mass has dimension M and acceleration has dimension LT^-2, so force has dimension…
Correct answer: MLT-2