1. Vocabulary
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Vocabulary
(2 words)
Laws of Motion
Speed
Newton’s
Toy Box
Miscellaneous
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2. The rate at which an object changes velocity
The rate at which an object changes velocity. Examples are speeding up, slowing down, and changing directions

3. Acceleration

4. A resistance force caused when two surfaces touch or rub against each other

5. Friction

6. A force that exists between any two objects that have mass, pulling them together

7. Gravity

8. The tendency of an object to continue resting or to continue moving

9. Inertia

10. An object’s speed will _________ if rolling down a hill.

11. Increase

12. A force that pushes against an object moving through air

13. Air Resistance

14. Who is the scientist that came up with the 3 Laws of Motion?

15. Isaac Newton

16. In order to calculate Force, you need to know the ______ and ________.

17. Mass Acceleration

18. What are astronauts experiencing when they seem to “float” in their spacecraft? It is also called this when a parachuter jumps out of an aircraft.

19. Free Fall

20. Two things you need to know to calculate Speed.

21. Distance, Time

22. According to Newton’s Second Law, acceleration depends on the mass of the object and the ______ of the force.

23. Size

24. Which of Newton’s Laws says that force is equal to mass times acceleration? (F= MxA)

25. Newton’s Second Law of Motion

26. Which of Newton’s Laws is also known as the Law of Inertia?

27. The First Law of Motion

28. According to Newton’s Third Law of Motion, action-reaction forces are equal in strength and _________ in direction.

29. Opposite

30. Which Law explains why we wear seatbelts?

31. First Law

32. If you drive a car 100 miles in 2 hours, what is your speed?

33. 50 mph

34. It took a train 10 hours to travel 700 miles. How fast was it traveling?

35. 70 mph

36. If a snail travels 30 feet in 2 hours, how fast is the snail traveling?

37. 15 fph

38. A family drove 50 miles in the first hour of their trip, 60 miles in the second hour, and 40 miles in the third hour. What was the average speed they traveled?

39. 50 mph

40. The Smiths drove exactly 70 miles per hour and their trip took 4 hours
The Smiths drove exactly 70 miles per hour and their trip took 4 hours. How many miles did they travel?

41. 280 miles

42. What is the Formula for calculating the Average Speed of a moving object?

43. Speed = Distance Time

44. In Science, a FORCE is defined as any _____ or ______

45. Push or Pull

46. The force of Friction exists when 2 objects ________

47. Are in contact (touch or rub each other)

48. A moving car changes ________ compared with nonmoving reference points.

49. Position

50. Why does a flat sheet of paper fall more slowly than a sheet of paper crumpled into a ball?

51. The flat sheet of paper has a larger surface area and greater AIR RESISTANCE.