Newtons Laws of Motion

1. 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 1 of 48

2. 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 2 of 48

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

Question 3 of 48

4. Mention the SI UNIT of momentum?

Question 4 of 48

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

Question 5 of 48

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

Question 6 of 48

7. Impulse = Force x Time

Question 7 of 48

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

Question 8 of 48

9. 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 9 of 48

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

Question 10 of 48

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

Question 11 of 48

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

Question 12 of 48

13. State the mathematical expression of Newtons second Law

Question 13 of 48

14. Define the law of inertia.

Question 14 of 48

15. 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 15 of 48

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

Question 16 of 48

17. Mention the beneficial applications of friction

Question 17 of 48

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

Question 18 of 48

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

Question 19 of 48

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

Question 20 of 48

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

Question 21 of 48

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

Question 22 of 48

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

Question 23 of 48

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

Question 24 of 48

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

Question 25 of 48

26. Define the law of conservation of linear momentum?

Question 26 of 48

27. 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 27 of 48

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

Question 28 of 48

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

Question 29 of 48

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

Question 30 of 48

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

Question 31 of 48

32. Momentum has both Magnitude and direction?

Question 32 of 48

33. Momentum is what type of quantity?

Question 33 of 48

34. Mention the notable advantage(s) of friction

Question 34 of 48

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

Question 35 of 48

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

Question 36 of 48

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

Question 37 of 48

38. 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 38 of 48

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

Question 39 of 48

40. What are Newton's Laws based on?

Question 40 of 48

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

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

Question 43 of 48

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

Question 44 of 48

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

Question 45 of 48

46. Define Momentum

Question 46 of 48

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

Question 47 of 48

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

Question 48 of 48