The document is a quiz focusing on concepts of motion, speed, and acceleration, featuring multiple-choice questions related to physics. It includes questions on definitions, formulas, and practical problems to assess understanding of the subject matter. Additionally, it provides an answer key for all the questions to facilitate learning and self-assessment.

1. QUIZZ

2. I. MULTIPLE CHOICE
1. Total distance an object travels with direction.
A. Displacement
B. Distance
C. Path
D. Velocity

3. 2. What is the formula to calculate the speed of a car?
A. S = time/distance
B. S = distance/time
C. S = distance x time
D. S = time x distance

4. 3. In what way is velocity different from speed ?
A. Velocity is measured in SI unit.
B. Velocity is measured in a specified direction.
C. Velocity means the distance divided by time.
D. Velocity is measured horizontally.

5. 4. When an object starts from rest, what is its original
velocity?
A. Depends on the problem
B. 0
C. Always positive
D. Always negative

6. 5. What is the unit of acceleration?
A. g/cm3
B. m/s
C. m/s2
D. N/m

7. 6. The three balls shown in the diagram were dropped
from a bench. Assume the air resistance acting on the
balls is negligible. Which balls had the same
acceleration? (Hint: under same gravity)
A. Aluminum, lead and wood
B. Aluminium and lead
C. Aluminium and wood
D. Lead and wood

8. 7. The table shows the speed of four cars, measured at the
start of and at the end of one minute. Which car has the
greatest acceleration?
A
B
C
D

9. 8. A girl on a bicycle rides down a hill without pedalling. What
happens to the bicycle at X?
A. It stops.
B. It slows down.
C. It moves at a constant speed.
D. It continues to accelerate.

10. 9. Which speed-time graph is for an object at rest?
A
B
C
D

11. 10. The diagram shows the speed-time for an object
moving at constant speed. What is the distance travelled
by the object in 3 seconds?
A. 1.5 m
B. 2.0 m
C. 3.0 m
D. 6.0 m

12. 11. The diagram is a speed -time graph for a car. Which
two sections of the graph show the car travelling at
constant speed?
A. PQ and QR
B. RS and TU
C. RS and UV
D. ST and UV

13. 12. The speed-time graph is for a cyclist. What distance
was covered at constant speed?
A. 1 m
B. 2 m
C. 3 m
D. 4 m

14. 13. Which graph shows constant speed followed by
increasing speed?
A
B
C
D

15. 14. Which speed-time graph represents the motion of the
car moving at constant speed?
A
B
C
D

16. 15. The diagram shows a speed-time graph for a car
moving with constant acceleration. What is represented
by the shaded area under the graph?
A. Acceleration
B. Distance
C. Speed
D. Time

17. II. PROBLEM SOLVING
1) A ball is kicked with an initial velocity of 12m/s at angle
of 50° to the horizontal.
a) How long will the ball stay in the air (assume it strikes
the ground at the same height it was launched)
b) How far will the ball go before hitting the ground?
c) What will be the maximum height of the ball?

18. ANSWER KEY
1. A. DISPLACEMENT
2. B. DISTANCE/TIME
3. B. VELOCITY IS MEASURED IN A SPECIFIED DIRECTION
4. B. 0
5. C. M/S2
6. A. ALUMINUM, LEAD AND WOOD
7. B
8. D. IT CONTINUES TO ACCELERATE
9. D
10. D. 6.0 METERS

19. 11. B. RS AND TU
12. D. 4 METERS
13. B
14. C
15. B. DISTANCE
II.
a) 1.88 sec b) 14.50 m c) 4.31 m