AP Physics Fall Final Exam – Kinematics
(Answer key at the end)
1. A car travels 30 miles at an average speed of 60 miles per hour and then 30 miles
... [Show More] at an average
speed of 30 miles per hour. The average speed the car over the 60 miles is
(A) 35 m.p.h. (B) 40 m.p.h. (C) 45 m.p.h. (D) 10 m.p.h. (E) 53 m.p.h.
Questions 2 – 4 relate to two particles that start at x = 0 at t = 0 and move in one dimension
independently of one another. Graphs, of the velocity of each particle versus time are shown below
Particle A Particle B
2. Which particle is farthest from the origin at t = 2 seconds.
(A) A (B) B (C) they are in the same location at t = 2 seconds (D) They are the same
distance from the origin, but in opposite directions (E) It is not possible to determine
3. Which particle moves with constant non-zero acceleration?
(A) A (B) B (C) both A and B (D) neither A nor B (E) It is not possible to determine
4. Which particle is in its initial position at t = 2 seconds?
(A) A (B) B (C) both A and B (D) neither A nor B (E) It is not possible to determine
5. The graph above shows the velocity versus time for an object moving in a straight line. At what
time after t = 0 does the object again pass through its initial position?
(A) Between 0 and 1 s (B) 1 s (C) Between 1 and 2 s (D) 2 s (E) Between 2 and 3 s
6. A body moving in the positive x direction passes the origin at time t = 0. Between t = 0 and t = 1
second, the body has a constant speed of 24 meters per second. At t = 1 second, the body is given a
constant acceleration of 6 meters per second squared in the negative x direction. The position x of the
body at t = 11 seconds is
(A) + 99m (B) + 36m (C) – 36 m (D) – 75 m (E) – 99 m
7. The displacement, x, of an object moving along the x-axis is shown above as a function of
time, t. The acceleration of this object must be
(A) zero (B) constant but not zero (C) increasing (D) decreasing (E) equal to g
2d
8. A 2-kilogram block rests at the edge of a platform that is 10 meters above level ground. The block is
launched horizontally from the edge of the platform with an initial speed of 3 meters per second.
Air resistance is negligible. The time it will take for the block to reach the ground is most nearly
(A) 0.3 s (B) 1.0 s (C) 1.4 s (D) 2.0 s (E) 3.0 s
9. A diver initially moving horizontally with speed v dives off the edge of a vertical cliff and lands in
the water a distance d from the base of the cliff. How far from the base of the cliff would the diver
have landed if the diver initially had been moving horizontally with speed 2v?
(A) d (B) (C) 2d (D) 4d (E) can’t be determined without knowing the height of the cliff
10. A truck traveled 400 meters north in 80 seconds, and then it traveled 300 meters east in 70
seconds. The magnitude of the average velocity of the truck was most nearly
(A) 1.2 m/s (B) 3.3 m/s (C) 4.6 m/s (D) 6.6 m/s (E) 9.3 m/s
11. A projectile is fired with initial velocity vo at an angle 0 with the horizontal and follows the
trajectory shown above. Which of the following pairs of graphs best represents the vertical
components of the velocity and acceleration, v and a, respectively, of the projectile as functions of
time t?
12. An object is released from rest on a planet that has no atmosphere. The object falls freely for 3.0
meters in the first second. What is the magnitude of the acceleration due to gravity on the planet?
(A) 1.5 m/s2 (B) 3.0 m/s2 (C) 6.0 m/s2 (D) 10.0 m/s2 (E) 12.0 m/s2
Questions 13 – 14
A ball is thrown and follows the parabolic path shown above. Air friction is negligible. Point Q
is the highest point on the path. Points P and R are the same height above the ground.
13. How do the speeds of the ball at the three points compare?
(A) vP < vQ < vR (B) vR < vQ < vP (C) vQ < vR < vP (D) vQ< vP = vR (E) vP = vR < vQ
14. Which of the following diagrams best shows the direction of the acceleration of the ball at
point P? (A) (B) (C) (D) (E)
2
15. A rock of mass m is thrown horizontally off a building from a height h, as shown above. The speed
of the rock as it leaves the thrower’s hand at the edge of the building is v0. How much time does it
take the rock to travel from the edge of the building to the ground?
(A)
h
(B)
0
(C
)
hv0
g
(D
)
2h
g
(E)
16. A ball is thrown straight up in the air. When the ball reaches its highest point, which of the following is true?
(A) It is in equilibrium. (B) It has zero acceleration. (C)It has maximum momentum
(D) It has maximum kinetic energy. (E) None of the above
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