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 34 of 71
- A. 3 : 1
- B. 1 : 3
- C. 1 : 2
- D. 2 : 1
Explanation: This is the following solution: (i) When lifted up with an acceleration of 4.9 m/s2: Tension = Weight + Force due to acceleration T1 = (1…
Correct answer: 3 : 1- A. Collision between two vehicles
- B. Collision between elastic balls (like tennis balls)
- C. None of these
- D. Collision between two trains connecting at low speed
- E. Collision between superballs
Explanation: If there is a loss of kinetic energy during a collision, it is called an inelastic collision.
Correct answer: Collision between two vehicles- A. 12.5 m/s2
- B. 8 m/s2
- C. 15 m/s2
- D. 16 m/s2
- E. 14 m/s2
- F. 2.88 m/s2
Explanation: You will find the distance traveled in 5 and 4 seconds individually. After subtracting these two terms and equating it to 36 meters, all…
Correct answer: 8 m/s2- A. 4 ms-1
- B. 6 ms-1
- C. 5 ms-1
- D. 8 ms-1
Explanation: For inelastic collision, momentum is still conversed. Momentum before collision = momentum after collision.
Correct answer: 4 ms-1- A. Negative
- B. Positive
- C. Speed
- D. Maximum
Explanation: The slope of a distance-time graph represents speed (or velocity in the case of displacement-time graphs).If the slope is constant, the…
Correct answer: Speed- A. 9.8 t2
- B. 4.9 t2
- C. 0.49 t2
- D. 98 t2
Explanation: Free fall is a motion of a body in which the only force acting of the body is the Gravitational Force.
Correct answer: 4.9 t2- A. Electric force
- B. Elastic spring force
- C. Gravitational force
- D. Frictional force
Explanation: Conservative forces, such as gravitational, electric, and elastic spring forces, depend only on the initial and final positions of an…
Correct answer: Frictional force- A. 100 m/s2
- B. 200 m/s2
- C. 0 m/s2
- D. 150 m/s2
- E. 220 m/s2
Explanation: The correct answer is 0 m/s2. When a car is traveling at a constant speed, its velocity remains unchanged over time.
Correct answer: 0 m/s2- A. 81 m
- B. 17 m
- C. 67 m
- D. 57 m
- E. 77 m/s
Explanation: To solve for the distance traveled, we first need to determine the acceleration.
Correct answer: 81 m- A. Angular momentum
- B. Force
- C. Change in momentum
- D. Velocity
Explanation: The correct answer is C: Change in momentum. According to Newton's second law, when a constant force is applied over a time interval, it…
Correct answer: Change in momentum- A. 05
- B. 50
- C. 55
- D. 95
Explanation: To find the final velocity of the object after 3 seconds of free fall, we use the kinematic equation: v = u + at.
Correct answer: 50- A. Linear
- B. Squared
- C. Cubic
- D. Decreasing linearly
Explanation: If the velocity of a particle is varying linearly with time, it means that the acceleration is constant.
Correct answer: Squared- A. 20 m/s²
- B. 10 m/s²
- C. 5 m/s²
- D. 2 m/s²
Explanation: The formula for uniformly accelerated motion is v = u + at. Here, the car starts from rest, so the initial velocity u = 0.
Correct answer: 2 m/s²- A. r2d
- B. 2πr
- C. 2r
- D. r
Explanation: The displacement of the Sun with respect to Earth can be described in two different ways:1.
Correct answer: r- A. Zero
- B. Constant but not zero
- C. Increases uniformly with respect to time
- D. Both (a) & (c)
Explanation: A mass accelerates uniformly when the resultant force acting on it is constant but not zero.
Correct answer: Constant but not zero- A. 50
- B. 2
- C. 5
- D. 0.5
Explanation: The correct answer is 50 m/s. The formula for calculating final velocity when starting from rest and moving with constant acceleration is…
Correct answer: 50- A. m
- B. m2
- C. m/s
- D. ms-2
Explanation: Unit of Acceleration that is universally accepted for the measurement of acceleration is ms-2.
Correct answer: ms-2- A. 20 m/s2
- B. 5 m/s2
- C. 10 m/s2
- D. 40 m/s2
Explanation: F=ma according to Newton's first law, so F/a (100/10) gives 10 which is the value for acceleration (a).We can use the formula F = m * a to…
Correct answer: 10 m/s2- A. 2π
- B. π
- C. zero
- D. 10π
Explanation: EXPLANATION IS Average velocity is defined ratio of total displacement and total time to cover that displacement.
Correct answer: zero- A. m2
- B. m1
- C. Both m1 and m2
- D. Not enough information is available
Explanation: The correct answer is m1 because inertia is directly proportional to mass.
Correct answer: m1