1. Midterm Review
Mr. Hauser

2. Rules of the Game
Working in TEAMS, you will be asked to answer questions from the assigned chapters.
You have 30 seconds to write the answer down on the dry erase board.
When the teacher says TIME’S UP, a team leader will stand up and show the teacher their answer.

3. Rules (Continued)
Each correct answer is worth one point, unless otherwise stated.
Teams can lose points for inappropriate conduct, comments, or cheating.
The team with the most points at the end of the game wins!

4. Question 1
What is the area of physics that studies motion and its causes?

5. ANSWER
Mechanics

6. Question 2
Who is credited with defining the scientific method?

7. ANSWER
Galileo

8. Name the three base quantities we will measure in physics.
Question 3
Name the three base quantities we will measure in physics.

9. ANSWER
Mass, Length, Time

10. What are the base metric units for mass in physics?
Question 4
What are the base metric units for mass in physics?

11. ANSWER
Kilograms

12. Question 5
How many kg are in 12,700 grams?

13. ANSWER
12.7 kg

14. Question 6
How many nm are in cm?

15. ANSWER
15,000 nm

16. True or False: Weight and mass both mean the same thing.
Question 7
True or False: Weight and mass both mean the same thing.

17. ANSWER
False

18. Question 8
The acceleration due to gravity on Earth is what value? (include units)

19. ANSWER
-9.8 m/s2

20. Question 9
One second after starting from rest, a freely falling object will have a speed of about…

21. ANSWER
10m/s (9.8m/s)

22. Question 10
What are the metric units used to measure acceleration?

23. ANSWER
m/s2

24. Velocity is a vector quantity because it has both …
Question 11
Velocity is a vector quantity because it has both …
action and reaction counterparts.
magnitude and direction.
mass and acceleration.

25. B. Magnitude (size) and direction.
ANSWER
B. Magnitude (size) and direction.

26. Question 12
A feather and a penny are both dropped from rest from the same height inside a vacuum tube. The feather lands…
before the penny.
after the penny.
at the same time as the penny.

27. C. at the same time as the penny
ANSWER
C. at the same time as the penny

28. Question 13
What is it called when a falling object no longer accelerates because of the air resistance force?

29. ANSWER
Terminal velocity

30. Question 14
Velocity can be found by calculating the slope of a _________ vs. time graph.

31. position or displacement
ANSWER
position or displacement

32. Question 15
If acceleration is positive and an object’s initial velocity is negative, it is…
speeding up.
slowing down.
at rest.

33. ANSWER
B) Slowing down

34. Question 16
The average speed of a car in meters per second that goes 40 km in 20 minutes is …

35. ANSWER
33 m/s

36. Question 17
Find the acceleration of a boat that slows from 15 m/s to 3.2 m/s in a time of 3 minutes

37. ANSWER
-0.066m/s2

38. Question 18
How long must a motorcycle jump be (length) in order to allow the driver to start from rest and attain a velocity of 41 m/s with an acceleration of 6.4 m/s2?

39. ANSWER
131.3 meters

40. Question 19
The acceleration of a projectile at the very top of its flight is…

41. ANSWER
-9.8 m/s2

42. Question 20
Find the vertical and horizontal components of an initial velocity of 45 m/s at an angle of 25 degrees above the horizontal. You must label which is which.

43. ANSWER
Vx = 40.8 m/s
Viy = 19.1 m/s

44. Question 21
A bullet is fired horizontally from a certain height at the same time a bullet is dropped from that same height. Which bullet lands first, the fired bullet, the dropped bullet, or do they hit at the same time?

45. They hit at the same time
ANSWER
They hit at the same time

46. Question 22
All projectiles trace a trajectory in the shape of a…

47. ANSWER
Parabola

48. Question 23
For every action, there is an equal and opposite reaction is a statement of _______________.

49. ANSWER
Newton’s Third Law

50. Question 24
An object’s resistance to a change in its state of motion is called _________.

51. ANSWER
Inertia

52. The mass of a pet turtle that weighs 10N is about
Question 25
The mass of a pet turtle that weighs 10N is about
1kg
100kg
1000 kg
10 kg
none of these

53. ANSWER
A. 1kg

54. Question 26
The force of friction on a sliding object is 10 N. The applied force needed to maintain a constant velocity is …
Less than 10 N.
More than 10 N.
10 N

55. ANSWER
C. 10 Newtons

56. Question 27
What is the only quantity that affects the amount of inertia something has?

57. ANSWER
mass

58. Newton’s Second Law states
Question 28
Newton’s Second Law states
a= ∑F-M
a= ∑F/m
m= ∑F a
∑F=m/a

59. ANSWER
B. a = ∑F/m

60. Question 29
A jet has a mass of 100,000kg. Each of its two engines has a force of 50,000N. What is the jet’s acceleration in meters per second squared? 1 2 4
.25
None of these

61. ANSWER
1 m/s2

62. What type of friction is always the largest?
Question 30
What type of friction is always the largest?

63. ANSWER
Static

64. Question 31
A 250 kg motorcycle accelerates from rest to 22 m/s in a time of 3.1 seconds. Find the size of the net force that caused it to do this.

65. ANSWER
1,774 N

66. Question 32
A 0.4kg hockey puck slides on a perfectly frictionless surface. The force required to keep it moving is…
4 Newtons
0.4 Newtons
40 Newtons
0 Newtons

67. ANSWER
0 Newtons
(an object in motion will stay in motion)

68. Question 33
A force applied over a distance is called ____________.

69. ANSWER
Work

70. Question 34
Energy of motion is called
Potential
Work
Kinetic
Chemical

71. ANSWER
Kinetic

72. Question 35
What are the metric units used to measure power? (Write out the word)

73. ANSWER
Watts

74. Power is ________ related to time.
Question 36
Power is ________ related to time.
A) directly
B) inversely
C) quadratically
D) linearly

75. ANSWER
B) inversely

76. Question 37
_________ is defined as the ability to cause change or the ability to do work.

77. ANSWER
Energy

78. If an object doubles its speed its kinetic energy will...
Question 38
If an object doubles its speed its kinetic energy will...
be halved.
double.
quadruple.
be reduced to one fourth.

79. ANSWER
C) quadruple

80. Question 39
How much work is done to lift a 45 kg weight up a distance of 6.2 meters at a constant velocity?

81. ANSWER
2,734 Joules

82. Question 40
Energy can neither be created nor destroyed but it can be converted from one form to another. This statement is called ______.

83. Law of Conservation of Energy
ANSWER
Law of Conservation of Energy

84. FINAL QUESTION
A ball rolls off a table that is 0.87 meters high with a speed of 10m/s in the horizontal direction. How far away from the base of the table does it land?

85. ANSWER
4.2 meters