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 14 of 71
- A. Eastward
- B. Westward
- C. Neither eastward nor westward
- D. The data given is insufficient
Explanation: In terms of determining the direction of acceleration: 1. When gaining speed, the acceleration is in the direction of movement 2.
Correct answer: Westward- A. -10 m/s
- B. -1/5 m/s
- C. 7/5 m/s
- D. -5 m/s
Explanation: Velocity=displacement per timeDisplacement would be 30-40=-10m since the car first travels 30m towards the east and then 40m towards the…
Correct answer: -1/5 m/s- A. Speed=6 m/s, velocity=2 m/s
- B. Speed=6 m/s, velocity=6 m/s
- C. Speed=2 m/s, velocity=2 m/s
- D. Speed=2 m/s, velocity=6 m/s
Explanation: Average Speed = Total Distance / Total TimeAverage Speed = 20 + 10 / 5 Average Speed = 30 / 5 = 6m/sNow Average Velocity = Total…
Correct answer: Speed=6 m/s, velocity=2 m/s- A. 5 m/sec, 1 m/sec
- B. 3 m/sec, 3 m/sec
- C. 6 m/sec, 1 m/sec
- D. 4 m/sec, 2 m/sec
Explanation: Let's name the two unknown speeds as V1 and V2.From the information given,V1+V2 = 6V1 - V2 = 4Solving the equations simultaneously,V1 = 4…
Correct answer: 5 m/sec, 1 m/sec265. A body will be in translational equilibrium if the vector sum of all the forces acting on it is:
- A. Zero
- B. Min
- C. Max
- D. Equal
Explanation: The vector sum of all of the forces acting on a body is a single force called the net force.
Correct answer: Zero- A. ab
- B. cd
- C. bc
- D. de
Explanation: The following is the solution:The slope of displacement versus time graph gives the velocity.
Correct answer: bc- A. A
- B. B
- C. C
- D. D
Explanation: In the case, initial velocity will be maximum, velocity will be zero at highest position, then velocity will increase when body comes back.
Correct answer: C- A. 2.16 m/s2
- B. -2.16 m/s2
- C. 4.16 m/s2
- D. -4.16m/sec2
Explanation: Option D is correct.Given data:final velocity= 0 m/s , Initial velocity= 5 m/s , Displacement =3 mFind out=uniform decceleration…
Correct answer: -4.16m/sec2- A. 10ms-1
- B. 15ms-1
- C. 29.4ms-1
- D. 12.2ms-1
Explanation: To determine the initial velocity of the cricket ball, we use the equation of motion: v = u + at.
Correct answer: 29.4ms-1- A. xi = 4m, xf = -2m
- B. xi = -4m, xf = -4m
- C. x i = 4m, xf = 6m
- D. xi = -4m, xf = -8m
Explanation: Finding the Displacement with the Largest Magnitude:The magnitude of displacement between initial position xi and final position xf is…
Correct answer: xi = -4m, xf = -8m- A. 40 km/hr
- B. 45 km/hr
- C. 48 km/hr
- D. 53 km/hr
Explanation: Calculating Average Speed for the TripGiven:1. 40 kilometers at 80km/h2.
Correct answer: 53 km/hr- A. 10 m/s
- B. 36 m/s
- C. Zero
- D. Infinite
Explanation: The speed of the man concerning the car would be the relative speed between the man and the car itself.Conversion of Velocity to Meters…
Correct answer: 10 m/s- A. Acceleration is constant
- B. Acceleration is variable
- C. Acceleration is zero
- D. Velocity is zero
Explanation: A velocity-time graph that forms a straight line parallel to the time axis implies a specific behavior in terms of acceleration.
Correct answer: Acceleration is zero274. A baseball is thrown vertically into the air; The acceleration of the ball at its highest point is:
- A. 2g down
- B. g up
- C. zero
- D. g down
Explanation: At the highest point of the ball's trajectory in a vertical throw:- The ball momentarily comes to rest in the vertical direction, with its…
Correct answer: zero- A. The maximum velocity of the feather is 9.8 m/s
- B. The acceleration of the feather remains constant during the fall
- C. The acceleration of the feather increases during the fall
- D. The acceleration of the feather decreases until terminal velocity is reached
Explanation: In a vacuum, near the surface of the Earth, the acceleration due to gravity remains approximately constant at 9.8 m/s2.
Correct answer: The acceleration of the feather remains constant during the fall- A. 706m
- B. 353m
- C. 118m
- D. 29.4m
Explanation: Given:- Time taken (t) = 12 s- Acceleration due to gravity (a) = 9.8 m/s2Using the Equation of Motion:Distance = (1/2) * acceleration *…
Correct answer: 706m- A. 4.9m
- B. 19.6m
- C. 9.8m
- D. 12.6m
Explanation: Given:- Time taken for the baseball to reach its maximum height and return (t) = 2 s- Acceleration due to gravity (g) = 9.8 m/s2Step 1…
Correct answer: 4.9m- A. Are at rest
- B. Are moving slowly
- C. Move with high velocity
- D. Move with a velocity comparable to the velocity of light
Explanation: Newton's laws of motion do not apply to particles moving at velocities comparable to the speed of light.
Correct answer: Move with a velocity comparable to the velocity of light- A. Rest
- B. Motion
- C. Velocity
- D. Force
Explanation: The first law of motion, also known as Newton's first law, defines Force.Newton's first law states that an object will remain at rest or…
Correct answer: Force- A. Force
- B. Acceleration
- C. Velocity
- D. Both force and acceleration
Explanation: The second law of motion, expressed as F = ma (force equals mass and acceleration), measures the quantity of force.
Correct answer: Force