# Class 9 Motion Test

May 20, 2020

Science test ix class motion chapter (mm=20)

Two Mark Questions
1.  Define the term displacement. Is it a vector quantity or a scalar quantity?
2.  What is circular motion? Is circular motion an acceleration motion?                   3.  Can displacement be zero? If yes, give One example of such situations.
4. A object goes from point X to Y and then come back from Y to X. What is
the displacement and average velocity?
THREE MARK QUESTION
5 A train accelerated from 10km/hr to 40km/hr in 2 minutes. How much
distance does it cover in this period? Assume that the tracks are straight?
6.  A car is travelling with a speed of 36 km/h. The driver applied the brakes
and retards the car uniformly. The car is stopped in 5 sec. Find (i) The
acceleration of car and (ii) Distance before it stops after Appling breaks?
One marker
7. What does the odometer of an automobile measure?
8. Gave the formula for each
1 Average velocity
2 Average speed
3 Distance covered by a
body

True and False Statements

1. The area of the velocity time graph gives displacement of the body
2.. Acceleration is a scalar quantity
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