Motion

Motion Worksheet-16

21. The physical quantity which given both, the speed and direction of motion of a body is called its……………

22. A motorcycle has a steady……………. of 3 m/s². This means that every………..its……….increases by…………

23. Velocity is the rate of change of ………………It is measured in ……………..

24. Acceleration is the rate of change of …………….It is measured in …………..

25. What type of motion, uniform or non-uniform, is exhibited by freely falling body? Give reason for your answer.

Motion Worksheet-17

41. (a) Define velocity. What is the SI unit of velocity?

(b) What is the difference between speed and velocity?

(c) Convert a speed of 54 km/h into m/s.

42. (a) What is meant by the term ‘acceleration’? State the SI unit of acceleration.

(b) Define the term ‘uniform acceleration’. Give one example of a uniformly accelerated motion.

43. The distance between Delhi and Agra is 200 km. A train travels the first 100 km at a speed of 50 km/h. How fast must the train travel the next 100 km, so as to average 70 km/h for the whole journey?

Motion Worksheet-18

61. What can you say about the motion of a body if its speed-time graph is a straight line parallel to the time axis?

62. What conclusion can you draw about the speed of a body from the following distance-time graph?

63. What can you say about the motion of a body whose distance-time graph is a straight line parallel to the time axis?

64. What conclusion can you draw about the acceleration of a body from the speed-time graph shown below?