Self Evaluation Sample paper physics class 9 Chapter

Self Evaluation Sample paper physics class 9 Chapter - Motion

1. Differentiate between distance and displacement?

2. Derive mathematically the first equation of motion V=u + at?

3. Calculate the acceleration of a body which starts from rest and travels 87.5m 5sec?

4. Define uniform velocity and uniform acceleration?

5. Derive the second equation of motion, s = ut + ½ at 2 numerically?

6. Calculate the acceleration and distance of the body moving with 5m/s2 which comes to rest after traveling for 6sec?

7. A body is dropped from a height of 320m. The acceleration due to the gravity is 10m/s2?

(a)How long does it take to reach the ground?

(b) What is the velocity with which it will strike the ground?

8. Derive third equation of motion v2 -u2 = 2as numerically?

9. A body is moving with a velocity of 12m/s and it comes to rest in 18m, what was the acceleration?

10. A body starts from rest and moves with a uniform acceleration of 4m/s2 until it travels a distance of 800m, find the find velocity?

11. The driver of a car traveling along a straight road with a speed of 72KM ph observes a signboard which give the speed limit to be 54KM ph. The signboard is 70m ahead when the driver applies the brakes0 calculate the acceleration of the car which will cause the car to pass the signboard at the stated speed limit?

12. Differentiate between scalars and vectors?

13.. The displacement x of a particle in meters along the x- axis with time ‘t’ in seconds according to the equation- X= 20m +(12m/s) t

(a) draw a graph if x versus t for t = 0 and t =5 sec

(b) What is the displacement come out of the particles initially?

(c) What is slope of the graph obtained?

14. A boy throws a stone upward with a velocity of 60m/s.

(a) How long will it take to reach the maximum height (g = -10m/s2)?

(b) What is the maximum height reached by the ball? (c) How long will it take to reach the ground?

15. Derive the third equation of motion- v2-u2 = 2as graphically

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