# Newtons Laws of Motion

1. Name the 3 types of forces which act on a body as it moves in a liquid

Question 1 of 48

2. Impulse force can either be large or small depending on the change of velocity (momentum) on the moving body?

Question 2 of 48

3. Which of the following is a CORRECT definition of the impulse force?

Question 3 of 48

4. Mention the SI UNIT of momentum?

Question 4 of 48

5. Mention the beneficial applications of friction

Question 5 of 48

6. State the mathematical expression of Newtons second Law

Question 6 of 48

7. The formula, F + u = mg , best describes the conditions for the occurrence of what phenomenon?

Question 7 of 48

8. Which of the following statements is INCORRECT about impulse force?

Question 8 of 48

9. Give 2 characteristics when two bodies are involved in inelastic collision?

Question 9 of 48

10. Which of the following statements is INCORRECT about the law of conservation of linear momentum?

Question 10 of 48

11. What are Newton's Laws based on?

Question 11 of 48

12. Name the type of collision in which both kinetic energy and momentum are conserved?

Question 12 of 48

13. Describe what shall happen to a body moving in a straight line acted upon by forces in equilibrium (forces acting on it are balanced)?

Question 13 of 48

14. Impulse = Force x Time

Question 14 of 48

15. Mention the 2 types of collisions which can happen to two bodies that collide according to the law of conversation of momentum?

Question 15 of 48

16. What phenomenon best describes the occurrence when a bus surges forward and all passengers are jerked backwards?

Question 16 of 48

17. Mention the notable advantage(s) of friction

Question 17 of 48

18. Define the law of inertia.

Question 18 of 48

19. Kinetic friction is the force acting between 2 surfaces which are in contact and in relative motion?

Question 19 of 48

20. Which of the following can occur for system of colliding bodies after collision according to the law of conservation of momentum?

Question 20 of 48

21. Terminal velocity is the constant velocity attained when an object falling in liquid has its sum of upward forces equal to the weight of the object?

Question 21 of 48

22. Define Momentum

Question 22 of 48

23. Why is it more difficult to bring to a stop a heavy commercial vehicle than a salon car even when both are travelling at the same velocity?

Question 23 of 48

24. Which of the following statement is TRUE about terminal velocity when a body is falling in a liquid?

Question 24 of 48

25. The frictional resistance to motion in fluids is called?

Question 25 of 48

26. The change of momentum is equal to impulse i.e. Ft= mv-mu

Question 26 of 48

27. State the SI UNIT of impulse is Ns. True or False?

Question 27 of 48

28. Which Newtons law states that action and reaction are equal and opposite?

Question 28 of 48

29. Momentum is what type of quantity?

Question 29 of 48

30. The following formula is used to describe which Newton's Law of motion? F is proportional to m(v-u)/t

Question 30 of 48

31. Mention the formula of the apparent weight of a body in a lift that is at rest?

Question 31 of 48

32. Which Newton's law states: The rate of change of momentum of a body is directly proportional to the resultant external force producing the change and takes place in the direction of the force.

Question 32 of 48

33. Which Newton's law states that a body remains in its state of rest or uniform motion in a straight line unless acted upon by an external force.

Question 33 of 48

34. The larger the mass the greater the inertia and vice-versa?

Question 34 of 48

35. Stoke's law states that when the radius of an object i.e. ball is small compared to the extent of liquid surface the ball does not create turbulence in the liquid as it falls?

Question 35 of 48

36. What is the name of the force which acts on a body for a very short time?

Question 36 of 48

37. Automobiles have seat belts in order to curb inertia. True or False?

Question 37 of 48

38. Which of the following statements is CORRECT about Newton's 3rd Law?

Question 38 of 48

39. Mention the formula of the apparent weight, P, of a body in a lift that is accelerating upwards?

Question 39 of 48

40. Mention the of the apparent weight, P, of a body in a lift that is accelerating downwards?

Question 40 of 48

41. Define the law of conservation of linear momentum?

Question 41 of 48

42. Which of the following is not among some of the methods used to minimize friction?

Question 42 of 48

43. The property of bodies to resist change in a state of motion is called?

Question 43 of 48

44. Which types of force occur when 2 moving bodies collide e.g. when two moving cars collide head on?

Question 44 of 48

45. Which of the following is NOT a disadvantage of friction?

Question 45 of 48

46. Momentum has both Magnitude and direction?

Question 46 of 48

47. The nature and condition of the surfaces in contact have an effect on the limiting frictional force i.e. sand paper verses glass.

Question 47 of 48

48. Which of the following statements is TRUE concerning kinetic friction?

Question 48 of 48