1. Linear velocity is defined as:
(A) Distance covered per unit time
(B) Displacement per unit time
(C) Acceleration per unit time
(D) Force per unit displacement
2. The SI unit of linear velocity is:
(A) m
(B) m/s
(C) m/s²
(D) km/h
3. Linear velocity is a ________ quantity.
(A) Scalar
(B) Vector
(C) Dimensionless
(D) Constant
4. Which physical quantity is the time derivative of displacement?
(A) Acceleration
(B) Force
(C) Velocity
(D) Power
5. If displacement is constant with time, the linear velocity is:
(A) Constant
(B) Zero
(C) Infinite
(D) Negative
6. In biomechanics, linear velocity of a joint segment means:
(A) Speed of joint rotation
(B) Rate of change of joint angle
(C) Rate of linear displacement of the segment
(D) Force applied by muscles
7. Which formula correctly represents linear velocity?
(A) v = Δs/Δt
(B) v = Δs × Δt
(C) v = Δt/Δs
(D) v = F/m
8. The dimensional formula of velocity is:
(A) [M⁰L¹T⁻¹]
(B) [M¹L¹T⁻²]
(C) [M⁰L¹T⁰]
(D) [M⁰L¹T²]
9. If a car moves 120 m in 10 seconds in a straight line, its linear velocity is:
(A) 12 m/s
(B) 1200 m/s
(C) 1.2 m/s
(D) 0 m/s
10. Average linear velocity is calculated as:
(A) Total distance / total time
(B) Total displacement / total time
(C) Instantaneous speed
(D) Force / mass
11. The slope of displacement-time graph gives:
(A) Force
(B) Acceleration
(C) Velocity
(D) Power
12. Instantaneous velocity is defined as:
(A) Velocity at a specific moment in time
(B) Average displacement per unit time
(C) Distance per time interval
(D) Maximum velocity only
13. Which situation gives zero average velocity?
(A) Car moving in a straight line forward
(B) Object completing a circular lap
(C) Runner sprinting forward
(D) Ball thrown upward
14. Linear velocity can be negative when:
(A) Object moves forward
(B) Object moves backward relative to chosen reference
(C) Object is at rest
(D) Object moves in circular path
15. Which of these is an example of linear velocity in daily life?
(A) Speed of a bicycle on a road
(B) Rotation of a wheel
(C) Angular velocity of a fan
(D) Torsion in a spring
16. In human gait, the forward progression of the body per second is measured as:
(A) Distance
(B) Linear velocity
(C) Angular velocity
(D) Acceleration
17. If velocity is constant, acceleration is:
(A) Zero
(B) Positive
(C) Negative
(D) Infinite
18. Which of these equations represents uniform velocity?
(A) s = ut + ½at²
(B) v = u + at
(C) s = vt
(D) F = ma
19. The area under velocity-time graph gives:
(A) Displacement
(B) Acceleration
(C) Force
(D) Mass
20. If a runner covers 100 m in 20 s, his average velocity is:
(A) 2 m/s
(B) 5 m/s
(C) 20 m/s
(D) 50 m/s
21. Which factor affects linear velocity?
(A) Displacement and time
(B) Mass and volume
(C) Pressure and temperature
(D) Angle and torque
22. Which of the following best differentiates velocity from speed?
(A) Speed is vector, velocity is scalar
(B) Speed is scalar, velocity is vector
(C) Both are scalars
(D) Both are vectors
23. The instantaneous velocity can be obtained from:
(A) Derivative of displacement w.r.t. time
(B) Derivative of velocity w.r.t. time
(C) Slope of acceleration graph
(D) Product of mass and acceleration
24. In biomechanics, linear velocity of the center of mass is important in:
(A) Force measurement
(B) Movement analysis in sports
(C) Blood circulation
(D) Lung function
25. A ball thrown upward has velocity zero at:
(A) Start
(B) Highest point
(C) End of motion
(D) Always
26. A car moves at 20 m/s north. Its velocity after 10 s if no acceleration is:
(A) 20 m/s north
(B) 0
(C) 200 m/s
(D) −20 m/s
27. Which graph represents uniform velocity?
(A) Straight line parallel to time axis
(B) Straight line inclined to time axis in displacement-time graph
(C) Curved displacement-time graph
(D) Horizontal velocity-time graph at zero
28. The linear velocity of a point on a rotating wheel is maximum at:
(A) Center of wheel
(B) Rim of wheel
(C) Halfway point
(D) Axis of rotation
29. When displacement decreases with time, velocity is:
(A) Positive
(B) Negative
(C) Zero
(D) Constant
30. Velocity of a falling object just before hitting the ground is called:
(A) Average velocity
(B) Terminal velocity
(C) Final velocity
(D) Escape velocity
31. If velocity-time graph is a straight line with positive slope, motion has:
(A) Constant velocity
(B) Positive acceleration
(C) Zero acceleration
(D) Negative acceleration
32. Which is an example of constant linear velocity?
(A) Free fall motion
(B) Car moving at steady speed on a straight road
(C) Rotating ceiling fan
(D) Pendulum oscillation
33. The relation between angular velocity (ω) and linear velocity (v) is:
(A) v = r/ω
(B) v = ω/r
(C) v = rω
(D) v = ω²r
34. Which sports performance depends highly on linear velocity?
(A) High jump
(B) Marathon running
(C) Javelin throw
(D) All of the above
35. The negative slope of displacement-time graph indicates:
(A) Positive velocity
(B) Negative velocity
(C) Zero velocity
(D) Uniform velocity
36. If velocity is variable, average velocity can be calculated by:
(A) (Initial + Final displacement)/2
(B) Total displacement / total time
(C) (Initial + Final velocity)/2 always
(D) Distance / mass
37. Linear velocity at the center of rotation is always:
(A) Maximum
(B) Zero
(C) Constant
(D) Negative
38. In biomechanics, step velocity in walking is measured in:
(A) Steps per minute
(B) Meters per second
(C) Joules per second
(D) Degrees per second
39. Which condition leads to zero velocity but non-zero acceleration?
(A) Free fall at the ground
(B) At the highest point in projectile motion
(C) Circular motion
(D) Uniform rectilinear motion
40. If a runner covers equal displacement in equal time intervals, velocity is:
(A) Variable
(B) Constant
(C) Negative
(D) Zero
41. Which is a vector quantity?
(A) Speed
(B) Velocity
(C) Distance
(D) Mass
42. If velocity is directed opposite to displacement, then:
(A) Displacement is zero
(B) Body is moving backward
(C) Distance is negative
(D) Speed equals zero
43. In biomechanics, high sprinting performance is often linked with:
(A) High linear velocity of limbs
(B) High torque of joints
(C) Muscle length only
(D) Small displacement
44. Which has greater velocity for the same angular velocity?
(A) Smaller radius point
(B) Larger radius point
(C) All points equal
(D) Axis of rotation
45. If displacement is proportional to square of time, velocity varies:
(A) Constant
(B) Linearly with time
(C) Quadratically with time
(D) Zero
46. The average velocity of an object that returns to its start point is:
(A) Positive
(B) Negative
(C) Zero
(D) Constant
47. The ratio of displacement to time is:
(A) Distance
(B) Velocity
(C) Acceleration
(D) Momentum
48. Which condition describes variable velocity?
(A) Constant speed in one direction
(B) Non-uniform displacement in equal time intervals
(C) Uniform straight-line motion
(D) Stationary body
49. A bus travels 40 km east in 2 hours, then 40 km west in 2 hours. Average velocity is:
(A) 20 km/h
(B) 40 km/h
(C) 0
(D) 10 km/h
50. The instantaneous linear velocity vector is always:
(A) Perpendicular to displacement
(B) Along the tangent to the path
(C) Along the radius of curvature
(D) Opposite to acceleration