1. Revision Quiz Bowl Units and Measurement
Speed, Velocity and Acceleration
Interpreting Graphs
Forces and Newton’s Laws
Freefall

2. Round 1: True or False Write T for true or F for false
Each correct answer is worth 1 point
5 seconds to write an answer
All groups must raise their tag boards
Groups with correct answers should wait for their scores to be tallied before erasing their answers

3. Question 1
If a car changes direction while moving at constant speed, then it is accelerating.

4. A body that is in free fall on Earth has constant acceleration.
Question 2
A body that is in free fall on Earth has constant acceleration.

5. Mass changes with location.
Question 3
Mass changes with location.

6. The greater is the mass of a body, the greater is its inertia.
Question 4
The greater is the mass of a body, the greater is its inertia.

7. Question 5
The gradient of a speed-time graph is equal to the distance traveled by the object.

8. Velocity is a vector quantity.
Question 6
Velocity is a vector quantity.

9. The base unit for mass is gram.
Question 7
The base unit for mass is gram.

10. Question 8
If an object is moving at constant velocity, then the net force on it is zero.

11. Question 9
If the acceleration is opposite in direction to the velocity, then the object speeds up.

12. Air resistance on a body increases as its speed increases.
Question 10
Air resistance on a body increases as its speed increases.

13. Round 2: Fill in the blank
Complete the statement by filling in
the correct missing word
10 seconds to write an answer
Wrong spelling is wrong
3 points for every correct answer

14. _________ is the total distance divided by the total time taken.
Question 1
_________ is the total distance divided by the total time taken.

15. The change in velocity per unit time is called __________.
Question 2
The change in velocity per unit time is called __________.

16. _________ is the gravitational force on an object.
Question 3
_________ is the gravitational force on an object.

17. _________ is a number and a unit.
Question 4
_________ is a number and a unit.

18. Force divided by mass is _____________.
Question 5
Force divided by mass is _____________.

19. The amount of matter in an object is otherwise known as ___________.
Question 6
The amount of matter in an object is otherwise known as ___________.

20. A _________ quantity has magnitude but no direction.
Question 7
A _________ quantity has magnitude but no direction.

21. For every action there is an equal and _____________ reaction.
Question 8
For every action there is an equal and _____________ reaction.

22. ____________ velocity.
Question 9
When air resistance balances the gravitational force on a body, the body moves at constant speed called the
____________ velocity.

23. The base unit for length is __________.
Question 10
The base unit for length is __________.

24. Round 3: Problem Solving
Give the exact answer with correct units
15 seconds to write an answer
5 points for every correct answer

25. Question 1
For her P.E. class, a student completes the three laps of 1200 m in 2 min 30 s. Find her average speed in the first lap in ms-1.

26. Question 1 Answer
8 ms-1

27. Calculate the total distance traveled by the car.
Question 2
Calculate the total distance traveled by the car.

28. Question 2 Answer
2072 m

29. Question 3
A bus moves from 3 ms-1 to a speed of 15 ms-1 in 12 s. Determine its average acceleration.

30. Question 3 Answer
1 ms-2

31. Question 4
A rocket of weight 1000 N is propelled upwards by a thrust of 1800 N. The air resistance is 500 N. What is the resultant force (magnitude and direction) on the rocket?

32. Question 4 Answer
300 N, upwards

33. Determine the unknown mass M in the given figure.
Question 5
Determine the unknown mass M in the given figure.

34. Question 4 Answer
200 g

35. Question 6
A rocket has a mass of 500 kg. At lift-off, the rocket engine exerts an upward force of N. What is the acceleration of the rocket?

36. Question 6 Answer
4 ms-2

37. Calculate the speed of the car.
Question 7
Calculate the speed of the car.

38. Question 7 Answer
20 ms-1

39. The End