Pre-AP Physics Fall Semester Final Review
Key Terms
Be able to identify the following terms if given a multiple choice, matching, diagram/picture/graph situations. Be sure you know these!
ACCELERATION DUE TO GRAVITYAVERAGE ACCELERATION
AVERAGE SPEED
AVERAGE VELOCITY
COMPONENT
CONSTANT ACCELERATION
CONTACT FORCE
INVERSE RELATIONSHIP
DERIVED UNIT
DISPLACEMENT
DISTANCE
EQUILIBRANT
EQUILIBRIUM
FORCE
FORCE OF GRAVITY
FREE-BODY DIAGRAM
KILOGRAM
INERTIA
INSTANTANEOUS ACCELERATION
INSTANTANEOUS VELOCITY
INTERACTION PAIR
LINEAR RELATIONSHIP
LONG-RANGE FORCE
METER
NET FORCE
NEWTON'S FIRST LAW
NEWTON'S SECOND LAW
NEWTON'S THIRD LAW
PARABOLA
PARALLELOGRAM
PROJECTILE
RESULTANT VECTOR
SCALAR QUANTITY
SECOND
SYSTEM
TERMINAL VELOCITY
TRAJECTORY
UNIFORM MOTION
VECTOR QUANTITY
VECTOR RESOLUTION
1. Write 54300 in scientific notation
2. Write 0.00075 in scientific notation
3. Write 8.5x10-2 in regular notation
4. Write 75 x 104 in regular notation
5.) Convert 53.2 cm to m using dimensional analysis
6.) Convert 245 g to kg using dimensional analysis
7.) Convert 54 km/hr to m/s using dimensional analysis
8.) Convert 12 m/s to km/hr using dimensional analysis
Find the components for each of the following vectors. You must show your work!
A = 50 @ 25° above the +x axis B = 60 @ 15° left of –y axis C = 100 @ 45° above the -x axis
9.) Ax = ______Ay = ______
10.) Bx = ______By = ______
11.) Cx = ______Cy = ______
Find R and q for each of the following: Show all work.
You must include a picture of your resultant triangle
12.) X component 112 x component 12
Y component 15 y component 32
13.) Complete the table below using Figure 1.
time / 0 - 3 / 3 - 11 / 11 – 14 / 14 - 16 / 16 – 19 / 19 –24 / 24 – 26 / 26 - 30velocity (m/s)
The following are multiple choice questions that I will pull from
1. Which of the following is the tendency of an object to maintain its state of motion?
a. acceleration c. force
b. inertia d. velocity
2. When a basketball player jumps to make a shot, once the feet are off the floor, the jumper’s acceleration
a. depends on the launch speed c. is usually greater for taller players
b. varies with body orientation d. is gravity; no more, no less
3. Acceleration is
a. displacement c. velocity
b. the rate of change of displacement d. the rate of change of velocity
4. The Law of Inertia states that an object
a. at rest will remain at rest unless acted on by an outside force
b. will continue moving at the same velocity unless an outside force acts on it
c. will continue moving in a straight line unless an outside force acts on it
d. that is not moving will never move unless a force acts on it
e. all of the above
5. How does acceleration of an object change in relation to its mass? It is…
a. directly proportional c. acceleration does not depend on mass at all
b. inversely proportional d. acceleration & mass will have the same effect
6. A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time, the acceleration of the ball is always
a. in the direction of the motion c. directed upward
b. opposite its velocity d. directed downward
7. A duck waddles 2.5 m east and 6.0 m north. What are the magnitude and direction of the duck’s displacement with respect to its original position?
a. 3.5 m at 19° north of east c. 6.5 m at 76° north of east
b. 6.3 m at 67° north of east d. 6.5 m at 72° north of east
8. When you look at the speedometer in a moving car, you can see the car’s
a. instantaneous speed c. instantaneous acceleration
b. average speed d. average acceleration
9. The horizontal component of a projectile moving at constant velocity may be affected by
a. gravity c. inertia
b. friction d. forces
10. If a car speeds up from 20 m/s to 60 m/s in 2.5 seconds, what is the car’s acceleration?
a. 16 m/s2 c. 9.8 m/s2
b. 32 m/s2 d. 2.5 m/s2
11. Which of the following forces is an example of a contact force?
a. gravitational force c. electric force
b. magnetic force d. frictional force
12. At the instant a ball is thrown horizontally with a large force, an identical ball is dropped from the same height. Which ball hits the ground first?
a. the horizontally thrown ball c. neither-they both hit the ground at the same time
b. the dropped ball d. neither-they both can not hit at the same time
13. If you pull horizontally on a crate with a force of 150 N and the crate does not move, the friction force must be 150 N. Now, if you pull with 250 N so that the crate slides at constant velocity, the friction force is
a. more than 150 N but less than 250 N c. more than 250 N
b. 250 N d. cannot be determined
14. Which of the following is a value for the acceleration of objects in free fall?
a. 8.9 m/s2 c. 98 m /s2
b. 9.8 m/s2 d. 980 m/s2
15. The magnitude of the force of gravity acting on an object is
a. frictional force c. inertia
b. weight d. mass
16. A ball thrown into the air at some angle between 10° and 90°. At the very top of the ball’s path its velocity is
a. entirely vertical c. both vertical and horizontal
b. entirely horizontal d. zero
17. Acceleration due to gravity is also called
a. negative velocity c. free-fall acceleration
b. displacement d. instantaneous velocity
18. An object moves horizontally at constant speed but is subject to a vertically downward acceleration. The path of the object is
a. straight horizontal c. curved or parabolic
b. straight vertical d. straight diagonal
19. In the absence of air resistance, the angle at which a thrown ball will go the farthest is
a. 75 degrees c. 45 degrees
b. 60 degrees d. 30 degrees
20. What causes a moving object to change direction?
a. acceleration c. inertia
b. velocity d. force
21. For the winter, a duck flies 10.0 m/s south against a gust of wind with a velocity of 2.5 m/s. What is the resultant velocity of the duck?
a. 12.5 m/s south c. 7.5 m/s south
b. 25 m/s south d. 4 m/s south
22. A change in the force of gravity acting on an object will affect the object’s
a. mass c. weight
b. frictional force d. inertia
23. What is the mass of a person that weighs 600 N?
a. 6000 kg c. 60 kg
b. 600 kg d. 6 kg
24. A string attached to an airborne kite was maintained at an angle of 40 degrees with the ground. If 120 m of string was reeled in to return the kite back to the ground, what was the horizontal displacement of the kite?
a. 110 m c. 77 m
b. 84 m d. 92 m
25. Suppose a small plane can fly at 200 km/hr relative to the surrounding air. Suppose also that there is a 40 km/hr tailwind. How fast does the plane’s shadow move across the ground?
a. 240 km/hr c. 160 km/hr
b. 200 km/hr d. 40 km/hr
26. A coin released at rest from the top of a tower hits the ground after falling 1.5 seconds. What is the speed of the coin as it hits the ground? (Disregard air resistance, g = 9.8 m/s2)
a. 15 m/s c. 31 m/s
b. 21 m/s d. 39 m/s
27. According to Newton’s second law, when the same force is applied to two objects of different masses,
a. the object with greater mass will experience a great acceleration and the object with less mass will experience an even greater acceleration.
b. The object with greater mass will experience a smaller acceleration and the object with less mass will experience a greater acceleration.
c. The object with greater mass will experience a greater acceleration and the object with less mass will experience a smaller acceleration.
d. The object with greater mass will experience a small acceleration and the object with less mass will experience an even smaller acceleration.
28. The most appropriate SI unit for measuring the length of an automobile is the
a. centimeter c. meter
b. kilometer d. millimeter
29. A measure of the quantity of matter is
a. density c. force
b. weight d. mass
30. At what point in its path does a projectile have its minimum speed?
a. when it is thrown c. at the top
b. half-way to the top d. as it nears the ground
31. The acceleration produced by a net force on an object is
a. directly proportional to the magnitude of the net force
b. in the same direction as the net force
c. inversely proportional to the mass of the object
d. all of the above
32. If you want to know the answers to this review, where could you look?
a. On my website-YES b. at Walgreens-NO c. Under my desk-NO
33. When something falls to the ground, it accelerates. This acceleration is called the acceleration due to gravity and is symbolized by the letter g. What is the value of g on the earth’s surface?
a. 0 m/sec/sec c. about 9.8 m/sec/sec
b. about 5 m/sec/sec d. about 20 m/sec/sec
34. A toy car is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s2. What is the final velocity after 6.0 s?
a. 10.0 m/s c. 16 m/s
b. 12 m/s d. 17 m/s
35. A 10 N falling object encounters 4 N of air resistance. The magnitude of the net force on the object is
a. 0 N c. 6 N
b. 4 N d. 10 N
36. A hiker travels south along a straight path for 1.5 h with an average velocity of 0.75 km/hr, then travels south for 2.5 hours with an average velocity of 0.90 km/hr. What is the hiker’s displacement for the total trip?
a. 1.1 km to the south c. 3.4 km to the south
b. 2.2 km to the south d. 6.7 km to the south
37. If a net force is acting on an object, then the object is definitely
a. at rest c. being accelerated
b. moving with a constant velocity d. losing mass
38. The baseball catcher throws a ball vertically upward and catches it in the same spot as it returns to the mitt. At what point in the ball’s path does it experience zero velocity and nonzero acceleration at the same time?
a. midway on the way up
b. at the top of its trajectory
c. the instant it leaves the catcher’s hand
39. Which of the following is the cause of an acceleration or a change in an object’s motion?
a. speed c. force
b. inertia d. velocity
40. Which of the following is an example of projectile motion?
a. a jet lifting off a runway
b. a bullet being fired from a gun
c. dropping an aluminum can into the recycling bin
d. a space shuttle orbiting earth
41. In the absence of air friction, the vertical component of a projectile’s velocity does not change as the projectile moves. This statement is
a. always true c. always false
b. sometimes true d. does not matter
42. A canon with a barrel velocity of 100 m/s launches a cannonball horizontally from a tower. Neglecting air resistance, where will the cannonball be 1 second later?
a. 50 m downrange c. 100 m downrange
b. 98 m downrange d. 490 m downrange
43. A jogger runs 10.0 blocks due east, 5.0 blocks due south, and another 2.0 blocks due east. Assume all blocks are of equal size. What is the magnitude of the jogger’s displacement?
a. 14.0 blocks c. 11.0 blocks
b. 8.0 blocks d. 13.0 blocks
44. A ball is thrown straight upward at 20 m/s. Ideally (no air resistance), the ball will return to the thrower’s hand with a speed of
a. 40 m/s c. 10 m/s
b. 20 m/s d. 0 m/s
45. A dolphin swims 1.85 km/hr. How far has the dolphin traveled after 0.6h?
a. 1.1 km c. 0.63 km
b. 2.5 km d. 3.7 km
46. Which of the following is a physical quantity that has a magnitude but no direction?
a. vector c. resultant
b. scalar d. frame of reference
47. The horizontal component of a projectile’s velocity is
a. independent of the vertical component of its velocity
b. independent of the range of the projectile
c. independent of both the vertical and horizontal
d. (there is not enough information to answer the question)
48. Speed is
a. a measure of how fast something is moving
b. the distance covered per unit of time
c. always measured in terms of a unit of distance divided by a unit of time
d. none of the above
e. all except d
49. Identify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree, wind velocity
a. vector, scalar, scalar c. scalar, vector, scalar
b. scalar, scalar, vector d. vector, scalar, vector
50. Which of the following is the motion of objects moving in two dimensions under the influence of gravity?
a. horizontal velocity c. parabola
b. directrix d. projectile motion
51. Suppose you take a trip that covers 240 km and takes 4 hours to make. Your average speed is
a. 960 km/hr d. 120 km/hr
b. 480 km/hr e. 60 km/hr
c. 240 km/hr
52. What is the shape of the path of a projectile?
a. a wavy line c. a hyperbola
b. a parabola d. projectiles don’t follow a predictable path
53. Objects that are falling toward Earth move
a. faster and faster c. at a constant velocity