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PHYSICS SEMESTER 1-FINAL EXAM REVIEW
Unit 1
Scientific Method
Unit 4
Ch 8 – Momentum
Ch 9 – Work, Power, Energy
Unit 2
Ch 2 – Mechanical Equilibrium
Ch 4 – Linear Motion
Ch 5 – Projectile Motion
Unit 5
Ch 10 – Circular Motion
Ch 12 – Rotational Inertia
Ch 13 – Universal Gravitation
Unit 3
Ch 3 – Newton’s 1st Law
Ch 6 – Newton’s 2nd Law
Ch 7 – Newton’s 3rd Law
Finals:
1st/2nd – morning of 1/27
3rd/4th – morning of 1/28
5th/6th – morning of 1/29
Unit 2:
Chapter 2 - Mechanical Equilibrium
1. What is the difference between vector quantities and scalar quantities? What are some examples of each?
2. What is the maximum and minimum resultant possible from a 20-N force and 4-N force?
3. A box is being pulled right with a force of 40 N, left 40 N, up 10 N and down 10N.
a. What is the net force being applied to the box?
b. What can be said about the velocity and acceleration of the box?
4. Identify the force acting on an object:
a. What name is given to the stretching force that occurs in a rope being pulled?
b. What is the name of a force that keeps a car from skidding on the road?
c. What is the name of the force that keeps objects orbiting in space?
5. Analyze position vs. time graphs
a.
Create the following Position vs. Time Graph
Time
(s)
Position
(m)
0
0
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Chapter 4 - Linear Motion
12. What is the difference between speed and velocity?
13. It takes you 950 seconds to get to the mall which is 7000 meters away. What is your average speed?
14. Calculate the average speed of a car going 50 miles in 30 minutes?
15. What does change in velocity (ΔV) refer to?
a. Find the ΔV if car slows from 60 to 50 mph.
i. Negative acceleration means the object is ________________.
b. Find the ΔV if car speeds up from 50 to 60 mph.
i. Positive acceleration means the object is _________________.
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16. As the car slows down on the highway due to traffic its velocity is__________ (changing/constant) and
its acceleration_______________( (+)increases / (-)decreases)
17. If a car speeds up from 0 to 30 m/s in 2s calculate its acceleration rate.
18. As you enter a highway you increase your speed from 50 mph to 70 mph in 5 seconds. What is your
acceleration?
19. As you enter a ramp you decrease your speed from from 50 mph to 20 mph in 5 seconds. What is your
acceleration?
20. How much time would it take a truck to reach 25 m/s from rest if it accelerated at 5 m/s2?
21. If a car accelerates at 3m/s2 for 4 seconds what would be the speed reached at 4 sec?
22. A freely falling object is constantly accelerating at _________.
23. What is the value for acceleration due to gravity?
24. What is the equation for falling distance? Falling velocity?
25. A rock falls from a cliff. It takes 2 seconds for it to hit bottom. How high is the cliff?
26. A rock falls from a cliff. It takes 2 seconds for it to hit bottom. How fast was the rock moving when I hit
the bottom?
27. An apple falls from a tree in an orchard. Assuming gravity is 10m/s2 what was the speed of the apple
after 2 seconds?
28. Air resistance ________ the acceleration of a free falling object. (increase/decrease)
Chapter 5 - Projectile Motion
29. A _____________________ is any object that moves through the air or space, acted on only by gravity.
30. What are the 2 components of a projectile?
31. The horizontal component of motion for a projectile is completely _______________ of the vertical
component of motion.
32. At the very top of the trajectory, what is the only component present? What is its velocity and the top?
What is its acceleration at the top?
Unit 3:
Chapter 3 - Newton’s First Law of Motion
33. What is inertia and what is it based on?
34. What is friction? What direction does it act relative to an object in motion?
35. Weight is the force due to _________________.
36. What is the difference between weight and mass in different locations such as the earth and the moon?
37. If an astronaut weighs 900 N on earth his weight will _____________ (increase/decrease/stay the same)
on the moon.
38. If an astronaut has a mass of 90 kg on earth, his mass will _____________ (increase/decrease/stay the
same) on the moon.
39. What is the mass of a student who weighs 700 N on earth? What is the students mass on the moon?
40. What is the weight in newtons of a student who has a mass of 60 kg?
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Chapter 6 - Newton’s Second Law of Motion
41. What causes acceleration?
42. What is the relationship between mass and acceleration?
43. What is the relationship between force and acceleration?
44. You kick a 1 kg ball with 300 N of force. What is the acceleration of the ball?
45. Find the acceleration using the following diagram:
46. What is the relationship between area and pressure?
47. What is the net force on an object and the object’s acceleration at terminal velocity?
Chapter 7 - Newton’s Third Law of Motion
48. If you hit a wall with a force of 200 N, how much force does the wall exert on you?
49. Action: Ball hits bat with 1000 N. Reaction: ____________________.
Unit 4:
Chapter 9 - Work, Power, Energy
50. How much work is done by a crane that lowers 3000 N of material a distance of 200 meters?
51. How much power is needed to do 788 Joules of work in 160 seconds?
52. What is the difference between potential energy and kinetic energy?
53. What can be said about the potential energy and kinetic energy at each point on the roller coaster? (Hint
use the roller coaster foldable in your notebook).
54. Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.
55. Determine the potential energy of a 1000-kg roller coaster car that is 130 m high.
56. Why is it that not all potential energy is available to be used for work in the roller coaster example?
(Hint: think about the Law of Conservation of Energy).
Unit 5:
Chapter 10 - Circular Motion
57. What is the difference between rotation and revolution? Provide an example of each.
58. A child is on a merry-go-round: which is rotating? Which is revolving?
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59. If one child ride near the edge of a merry-go-round and another rides near the center, what can be said
about their rotational speed and linear speed compared to one another?
60. The earth _____________ around its axis and _____________ around the sun.
61. Label the correct vector given a moving object using the diagram below:
a. Label the velocity vector at point A. The velocity vector points _______________ to the circle
(tangent or curved line).
b. Label the centripetal force vector at point A. The centripetal force vector always points
___________ (inward or outward).
c. Label the centripetal acceleration vector at point A. The centripetal acceleration vector points in
the same direction as the centripetal force which is always towards the ________________
(outside or center).
d. Label the centrifugal force vector at point A. The centrifugal force vector at point A always
points ___________ (inward or outward).
Chapter 13 - Universal Law of Gravitation
62. When objects move closer to one another their gravitational force _______(increases/decreases).
63. What is relationship between force and mass, and force and distance?
64. Two objects attract each other with a gravitational force of 10 N. If the mass of one object doubles, what
is the new force of attraction between them?
65. Two objects attract each other with a gravitational force of 28 N. If the distance between them doubles,
what is the new force of attraction between them?
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