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 57 of 71
- A. 800 N
- B. 200 N
- C. 4000 N
- D. 40 N
Explanation: Centripetal force is the force acting on an object moving in a curved path that keeps it moving in that path.
Correct answer: 800 N1122. Motion of projectile is:
- A. One dimensional
- B. Two dimensional
- C. Three dimensional
- D. Four dimensional
Explanation: Projectile motion refers to the motion of an object projected into the air, like a ball thrown or a bullet shot.
Correct answer: Two dimensional- A. T = π2/ω
- B. T = π/ω
- C. T = 2π/ω
- D. T = π/ω2
Explanation: In circular motion, the period (T) is the time it takes for an object to complete one full revolution.
Correct answer: T = 2π/ω- A. v = u + at
- B. S = ut + 1/2 at2
- C. v2 = u2 + 2aS
- D. All of the above
Explanation: In the topic of Motion in Two Dimensions, understanding the basic equations of motion is essential.
Correct answer: All of the above- A. 60°
- B. 90°
- C. 180°
- D. 360°
Explanation: In the context of projectile motion, the horizontal range is the farthest distance the projectile travels horizontally before hitting the…
Correct answer: 360°- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: The following is the solution: By doing so, Time of change in momentum increases and impulsive force on knees decreases.
Correct answer: Option C- A. Rider is taken back
- B. Rider is suddenly afraid of falling
- C. Inertia of rest keeps the upper part of body at rest whereas lower part of the body moves forwards with the horse
- D. None of the above
Explanation: The following is the solution: When the horse starts running suddenly, the rider's body, like any other object, tends to remain at rest…
Correct answer: Inertia of rest keeps the upper part of body at rest whereas lower part of the body moves forwards with the horse- A. 10 N
- B. 20 N
- C. 32 N
- D. 40 N
Explanation: This is the following solution: The total mass of the system = 20kg The total mass of the system =20kgA ∴ A = F/m = 40N/20kg = 2 m/s2…
Correct answer: 32 N- A. A speed of 1 m/s
- B. An acceleration of 1 m/s2
- C. An acceleration of 980 cm/s2
- D. An acceleration of 1 cm/s2
Explanation: This is the following solution: According to the second law of motion: F = ma Given F = 1 N, m = 1 kg. So a = 1 m/s2
Correct answer: An acceleration of 1 m/s2- A. 1.5m/s
- B. 60m/s
- C. 0.1m/s
- D. 5m/s
Explanation: Step 1: Acceleration of the ship, Applying Newton's law, F=maa= m/F = 5×10 4/3×10 7 = 5/ ×10−3 m/s2Step 2: Final speed of the shipUsing…
Correct answer: 0.1m/s- A. 10 m/s
- B. Zero
- C. 36 m/s
- D. Infinite
Explanation: In this case, man is in the rest with respect to air.
Correct answer: Zero- A. Elipitical path
- B. Parabolic path
- C. Circular path
- D. Rectilinear path
Explanation: At straigh path, body can have constant velocity beacuse directin of motion will remain same.
Correct answer: Rectilinear path- A. 2km per hour
- B. 0
- C. 1/2km per hour
- D. 1/2 km per second
Explanation: Displacement covered is zero so average velocity will be zero in this case.
Correct answer: 0- A. Conservation of energy
- B. Conversation of momentum
- C. Backward thrust of gases produced
- D. Newton's first law of motion
Explanation: A gun after firing recoils due to conversation of momentum.
Correct answer: Conversation of momentum- A. V/4
- B. V
- C. V/2
- D. 5V/4
Explanation: This is a perfectly inelastic collision. Please refer to the calculation given below.
Correct answer: V/4- A. Acceleration
- B. Vertical velocity
- C. Velocity
- D. Horizontal velocity
Explanation: At maximum height projectile have minimum velocity as Vy=0.
Correct answer: Vertical velocity- A. Which is fired at 200
- B. Both have same range
- C. Which is fired at 700
- D. None of these
Explanation: For complementary angles range are same.
Correct answer: Both have same range- A. 30 ms-1
- B. 40 ms-1
- C. 70 ms-1
- D. 60 ms-1
Explanation: Option C is correct.The horizontal velocity of the ball will be the same 3 seconds later.
Correct answer: 70 ms-11139. An aircraft is moving with a velocity of 300ms-1. If all the forces acting on it are balanced, then
- A. It still moves with the same velocity
- B. It will explode
- C. It will lose its velocity gradually
- D. It will fail down instantaneously
Explanation: A is correct, if forces on both the sides are balanced then the aircraft will move with same velocity.
Correct answer: It still moves with the same velocity- A. 2.5ms-1
- B. 5ms1
- C. 10ms1
- D. 20ms1
Explanation: C is the correct answer . Find out time first using s=1/2 at^2 (u is 0) t=1suse horizontal motion to find the velocityv=d/tv=10m/s
Correct answer: 10ms1