اردو

Home / Practice / Kinematics / Worksheet

Practise online

Kinematics

Class 9 · Physics · 6 questions

Name: ____________________   Date: ____________

  1. Which of these is a vector quantity?

    • A Time
    • B Velocity
    • C Speed
    • D Distance

  2. A car covers 120 km in 2 hours. What is its average speed?

    • A 120 km/h
    • B 60 km/h
    • C 240 km/h
    • D 40 km/h

  3. A body starts from rest and reaches 20 m/s in 5 s. What is its acceleration?

    • A 2 m/s2
    • B 5 m/s2
    • C 100 m/s2
    • D 4 m/s2

  4. The slope of a distance-time graph gives:

    • A Acceleration
    • B Force
    • C Speed
    • D Displacement

  5. An object falls freely from rest for 3 s. What is its speed at the end? (g = 10 m/s2)

    • A 90 m/s
    • B 30 m/s
    • C 10 m/s
    • D 20 m/s

  6. The area under a speed-time graph gives:

    • A Distance travelled
    • B Force
    • C Time
    • D Acceleration

Answer key

1. B, 2. B, 3. D, 4. C, 5. B, 6. A

  1. Velocity has both magnitude and direction. Speed, distance and time have only magnitude.

  2. Average speed = distance / time = 120 / 2 = 60 km/h.

  3. a = (v - u) / t = (20 - 0) / 5 = 4 m/s2.

  4. On a distance-time graph, slope = change in distance / change in time, which is speed.

  5. v = g t = 10 x 3 = 30 m/s.

  6. Area under a speed-time graph equals the distance travelled.