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Worksheet on Motion for Class 9 physics





In this page we have Worksheet on Motion for Class 9 physics . (a) Fill in the blanks
(b) crossword puzzle
(c) Short questions
(d) Long answer questions
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Fill in the blanks

  1. A car starts at rest and travel a distance 20 m in 1 sec .The car average speed is ___________
  2. Motion of earth around sun is an example of __________ motion
  3. Tractor moving with 18 km/h is _______ then car moving with 1500 m/min
  4. The motion of a free falling body is an example of __________ motion
  5. The curved speed time graph represent ________ accelerated motion
  6. Distance is a _______quantity while displacement is a _____________ quantity

Crossword Puzzle

Worksheet on Motion for Class 9 physics
Across
2. Physical quantity obtained by dividing displacement with time taken
3. A quantity having both magnitude and direction
4. This remains constant in uniform circular motion
6. It is the slope of speed -time graph
8. This measure the distance travelled by the car
Down
1. This is the other name for negative acceleration
4. The speed is said to be a
5. This is the acceleration of the body with uniform velocity
7. This measure the speed of the car

Short Answer type


Question 1
A particle is moving up an inclined plane. Its velocity changes from 15m/s to 10m/s in two seconds. What is its acceleration?

Question 2
The velocity changes from 45m/s to 60m/s in Three seconds. What is its acceleration?

Question 3
A body covered a distance of z metre along a semicircular path. Calculate the magnitude of displacement of the body, and the ratio of distance to displacement?

Question 4
A particle moving with an initial velocity of 5m/s is subjected to a uniform acceleration of 2.5m/s2. Find the displacement in the next 4 sec.?

Question 5
A train is travelling at a speed of 60 km/ h. Brakes are applied so as to produce a uniform acceleration of −0.5 m /s2. Find how far the train will go before it is brought to rest.

Question 6
A Truck covers 30km at a uniform speed of 30km/hr. what should be its speed for the next 90km if the average speed for the entire journey is 60km/h?

Question 7
A stone is thrown in a vertically upward direction with a velocity of 10 m/s. If the acceleration of the stone during its motion is 10 m /s2 in the downward direction, what will be the height attained by the stone and how much time will it take to reach there?

Question 8
A person goes to market, makes purchases and comes back at a constant slower speed. Draw displacement- time and velocity time graphs of the person?

Question 9
John runs for 10 min. at a uniform speed 9km/h. At what speed should he run for the next 20 min. so that the average speed comes 12km/hr?

Long answer type

Question 10
A particle was at rest from 1 a.m. It moved at a uniform speed 50km/hr from 1.30 a.m. to 2:00 a.m. Find the average speed between
(a) 1.00 a.m. and 2.00 a.m.
(b) 1.15 a.m. and 2.00 a.m.
(c) 1.30 a.m. and 2.00 a.m.

Question 11
An object moves along a circular path of diameter 14cm with constant speed. If it takes 2 min. to move from a point on the path to the diametrically opposite point. Find
(a) The distance covered by the object
(b) The speed
(c) The displacement
(d) average velocity.

Question 12
A particle with a velocity of 2m/s a t=0 moves along a straight line with a constant acceleration of 0.2m/s2. Find the displacement of the particle in 10s?

Question 13
A particle is pushed along a horizontal surface in such a way that it starts with a velocity of 12m/s. Its velocity decreases at a uniform rate of 0.5m/s2.
(a) Find the time it will take to come to rest.
(b) Find the distance covered by it before coming to rest?

Question 14
A train accelerated from 20km/hr to 80km/hr in 4 minutes. How much distance does it cover in this period? Assume that the tracks are straight?

Question 15
A cyclist moving on a circular track of radius 50m completes one revolution in 4 minutes. What is his
(a) average speed
(b) average velocity in one full revolution?

Summary

This Worksheet on Motion for Class 9 physics with answers is prepared keeping in mind the latest syllabus of CBSE . This has been designed in a way to improve the academic performance of the students. If you find mistakes , please do provide the feedback on the mail.



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