1. Linear acceleration is defined as:
(A) Rate of change of displacement
(B) Rate of change of velocity
(C) Rate of change of force
(D) Distance covered per unit time
2. The SI unit of acceleration is:
(A) m/s
(B) m/s²
(C) N/kg
(D) m
3. Linear acceleration is a ________ quantity.
(A) Scalar
(B) Vector
(C) Dimensionless
(D) Constant
4. Which physical quantity is the derivative of velocity with respect to time?
(A) Displacement
(B) Acceleration
(C) Force
(D) Power
5. If velocity is constant, acceleration is:
(A) Zero
(B) Positive
(C) Negative
(D) Infinite
6. A car increases its velocity from 10 m/s to 20 m/s in 5 seconds. Its acceleration is:
(A) 5 m/s²
(B) 2 m/s²
(C) 10 m/s²
(D) 15 m/s²
7. The dimensional formula of acceleration is:
(A) [M⁰L¹T⁻¹]
(B) [M⁰L¹T⁻²]
(C) [M¹L¹T⁻²]
(D) [M⁰L¹T²]
8. The slope of velocity-time graph gives:
(A) Force
(B) Acceleration
(C) Displacement
(D) Power
9. Negative acceleration is also called:
(A) Retardation
(B) Momentum
(C) Constant speed
(D) Equilibrium
10. If velocity changes uniformly with time, acceleration is:
(A) Variable
(B) Constant
(C) Zero
(D) Negative
11. In free fall, the linear acceleration of an object is:
(A) 2.5 m/s²
(B) 9.8 m/s²
(C) 5.0 m/s²
(D) Zero
12. Instantaneous acceleration is:
(A) Acceleration at a given moment
(B) Average acceleration
(C) Constant velocity
(D) Zero acceleration
13. The formula for average acceleration is:
(A) Δv/Δt
(B) v/t
(C) Δs/Δt
(D) F/m
14. In biomechanics, acceleration of a limb refers to:
(A) Rate of joint rotation
(B) Rate of velocity change of the limb
(C) Muscle length change
(D) Pressure on joint
15. Which graph represents constant acceleration?
(A) Velocity-time graph with constant slope
(B) Displacement-time graph curved
(C) Horizontal velocity-time graph
(D) Force-time graph
16. The area under acceleration-time graph gives:
(A) Velocity
(B) Displacement
(C) Force
(D) Mass
17. If a runner speeds up from 2 m/s to 6 m/s in 2 seconds, acceleration is:
(A) 4 m/s²
(B) 2 m/s²
(C) 3 m/s²
(D) 8 m/s²
18. Deceleration always acts:
(A) In the direction of motion
(B) Opposite to the direction of motion
(C) Perpendicular to motion
(D) Tangent to displacement
19. A car moving with 20 m/s slows to rest in 5 seconds. Acceleration is:
(A) −4 m/s²
(B) +4 m/s²
(C) 0
(D) −5 m/s²
20. Which of these equations represents uniformly accelerated motion?
(A) v = u + at
(B) s = vt
(C) F = ma
(D) p = mv
21. The second equation of motion is:
(A) s = ut + ½at²
(B) v = u + at
(C) F = ma
(D) a = Δv/Δt
22. The third equation of motion is:
(A) v² = u² + 2as
(B) s = ut + ½at²
(C) F = ma
(D) v = s/t
23. Constant acceleration leads to:
(A) Straight-line displacement-time graph
(B) Straight-line velocity-time graph
(C) Parabolic displacement-time graph
(D) Constant velocity
24. If acceleration is zero, velocity is:
(A) Increasing
(B) Constant
(C) Negative
(D) Infinite
25. An object moving with acceleration has:
(A) Constant speed
(B) Changing velocity
(C) Zero velocity
(D) No displacement
26. The acceleration due to gravity on Earth is approximately:
(A) 8.9 m/s²
(B) 9.8 m/s²
(C) 10.5 m/s²
(D) 12 m/s²
27. If initial velocity u = 0, displacement in time t under acceleration is:
(A) s = ut
(B) s = ½at²
(C) s = vt
(D) s = ma
28. The derivative of acceleration with respect to time is called:
(A) Power
(B) Momentum
(C) Jerk
(D) Force
29. Which sports activity involves rapid linear acceleration?
(A) Sprinting start
(B) Weightlifting
(C) Swimming strokes
(D) All of the above
30. In walking, acceleration is highest during:
(A) Heel strike
(B) Toe off
(C) Mid stance
(D) Swing phase
31. A moving object with constant positive acceleration has:
(A) Increasing velocity
(B) Decreasing velocity
(C) Constant velocity
(D) Zero velocity
32. Which factor directly affects acceleration according to Newton’s 2nd law?
(A) Mass and force
(B) Time and pressure
(C) Distance and angle
(D) Power and work
33. A cyclist accelerates from 5 m/s to 15 m/s in 5 seconds. Acceleration =
(A) 1 m/s²
(B) 2 m/s²
(C) 3 m/s²
(D) 5 m/s²
34. When acceleration and velocity are in opposite directions, motion is:
(A) Uniform
(B) Accelerating
(C) Retarding
(D) Stationary
35. Which formula relates final velocity, initial velocity, acceleration, and time?
(A) v = u + at
(B) s = ut + ½at²
(C) v² = u² + 2as
(D) F = ma
36. The motion of a freely falling body is an example of:
(A) Uniform motion
(B) Uniform acceleration
(C) Non-uniform acceleration
(D) Constant velocity
37. Which of these is true for uniform acceleration?
(A) Equal increments of velocity in equal time intervals
(B) Constant velocity
(C) Equal increments of displacement
(D) Zero velocity
38. If a car accelerates at 3 m/s² for 4 s, velocity change is:
(A) 6 m/s
(B) 12 m/s
(C) 9 m/s
(D) 3 m/s
39. Uniform retardation leads to:
(A) Increase in velocity
(B) Decrease in velocity
(C) Constant displacement
(D) Constant acceleration
40. In biomechanics, acceleration of the center of mass helps analyze:
(A) Joint stability
(B) Force generation
(C) Muscle contraction
(D) Body balance
41. A train moving at 30 m/s stops in 15 seconds. Acceleration is:
(A) −2 m/s²
(B) 2 m/s²
(C) −1 m/s²
(D) −3 m/s²
42. Acceleration is zero when:
(A) Velocity is maximum
(B) Velocity is constant
(C) Velocity is changing
(D) Displacement is increasing
43. A ball rolling uphill has acceleration:
(A) Positive
(B) Negative
(C) Zero
(D) Constant
44. Which instrument is used to measure acceleration?
(A) Accelerometer
(B) Dynamometer
(C) Spirometer
(D) Force plate
45. If net external force on a body is zero, acceleration is:
(A) Zero
(B) Positive
(C) Negative
(D) Constant
46. Which motion shows variable acceleration?
(A) Free fall near Earth
(B) Motion of a car in traffic
(C) Dropping a stone in vacuum
(D) Constant speed treadmill walk
47. A rocket launch demonstrates:
(A) Negative acceleration
(B) Constant speed
(C) Positive linear acceleration
(D) Zero velocity
48. If an object accelerates at 5 m/s² for 2 seconds, change in velocity =
(A) 5 m/s
(B) 10 m/s
(C) 15 m/s
(D) 20 m/s
49. Displacement-time graph of uniformly accelerated motion is a:
(A) Straight line
(B) Parabola
(C) Hyperbola
(D) Circle
50. Which of these affects human acceleration in running?
(A) Muscle strength
(B) Ground reaction force
(C) Body mass
(D) All of the above