Physics 9 Chapter 2 - Kinamatics -18

Physics 9 Chapter 2 - Kinamatics -18

1. What would be the distance travelled in last 5s if the speed of car is 1 ms^-1?

a) 10 m
b) 5 m
c) None of these
d) 6 m

2. In speed-time graph, what is taken along horizontal axis?

a) Time
b) Speed
c) Acceleration
d) Distance

3. In speed-time graph, what is taken along vertical axis?

a) Time
b) Speed
c) Distance
d) Acceleration

4. When the speed of an object is constant with time, what would be the speed-time graph?

a) Vertical line parallel to x-axis
b) Curved line parallel to y-axis
c) Horizontal line parallel to y-axis
d) Horizontal line parallel to x-axis

5. What does a straight line parallel to time axis represents?

a) Variable speed
b) Terminal speed
c) Constant speed
d) Initial speed

6. What does the uniformly changed speed means?

a) Constant acceleration 9
b) Uniform acceleration
c) None of these
d) Variable acceleration

7. What does the slope of line gives in speed-time graph?

a) Velocity
b) Time
c) Speed
d) Acceleration

8. Let initial velocity be 2ms^-1, final velocity be 4ms^-1 and time taken be 5s. Then what would be the acceleration of object?

a) 0.4 ms^-1
b) -0.4 ms^-1
c) -0.8 ms^-1
d) 0.8 ms^-1

9. The speed after 5s is 4 ms^-1 and it becomes 2ms^-1 after 10 s. Then find the acceleration?

a) 0.4 ms^-1
b) -0.4 ms^-1
c) 0.8 ms^-1
d) 0.5 ms^-1

10. What does the area under a speed-time graph represent?

a) Velocity of the object
b) Acceleration of the object
c) Distance travelled by the object
d) Speed of the object

11. If the body was initially at rest and it attains the velocity of 16 ms^-1 after 10 s, then find the acceleration of the body?

a) 160 ms^-1
b) 6 ms^-1
c) 1.6 ms^-1
d) 26 ms^-1

12. What would be the retardation during two seconds, if its initial velocity is 16 ms^-1 and final velocity is 0 ms^-1?

a) 32 ms^-1
b) 14 ms^-1
c) 8 ms^-1
d) 18 ms^-1

13. How many types of equations of motion are there?

a) Four
b) Three
c) One
d) Two

14. What is related in equations of motion?

a) Initial velocity
b) All of these
c) Final velocity
d) Acceleration

15. What is related in equations of motion?

a) Distance
b) All of these
c) Acceleration
d) Time

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