AP Physics 1
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CHAPTERS 1 & 2--REVIEW
Show all work on separate paper.
1.
A car accelerates from rest to a speed of 10.0 m/s in 5.0 s. If the rate of acceleration is uniform,
determine the a) rate of acceleration and b) distance traveled during the 5.0 s of motion.
a) 2.0 m/s2, b) 25 m
2.
A truck traveling at 20.0 m/s decelerates uniformly to 10.0 m/s over a distance of 100 m. Determine the
a) rate of deceleration and b) time required for the truck to travel the 100 m.
a) -1.50 m/s2, b) 6.67s
3.
A ball is thrown vertically upward with an initial speed of 4.90 m/s from the top of a building 19.6 m high.
Determine the a) time to reach maximum height and b) maximum height above the top of the
building reached by the ball.
a) 0.50 s, b) 1.2 m
4.
Convert
a)
82 km/h =
____________
m/s
(22.8 m/s)
b)
1 day
____________
ns
(8.64 x 1013 ns)
=
5.
An airplane takes off at 8:00 AM and flies at 300 km/h until 1:00 PM. At this speed is increased
to 400 km/h and it maintains this speed until it lands at 5:30 PM. What is the plane’s average speed for
the entire flight?
(347 km/h)
6.
The brakes of a car moving at 18 m/s are suddenly applied and the car comes to a stop in 4 seconds.
a)
b)
7.
What was its acceleration?
(-4.5 m/ss)
How long would the car take to come to a stop starting from 24 m/s with the same acceleration?
(5.33 sec)
A Russian balloonist floating at an altitude of 120 meters accidentally drops his samovar and starts to
ascend at the constant speed of 1.5 m/s. How high will the balloon be when the samovar reaches the
ground?
(128 m)
 Graphing Motion Worksheet Page 4
 MisConceptual Questions (on back)
Chapter 2 MisConceptual Questions
1.
In which of the following cases does a car have a negative velocity and a positive acceleration?
A car that is traveling in the
a. –x direction at a constant 20 m/s.
b. –x direction increasing in speed.
c. +x direction increasing in speed.
d. –x direction decreasing in speed.
e. +x direction decreasing in speed.
2. At time t=0 an object is traveling to the right along the +x axis at a speed of 10.0 m/s with
acceleration -2.0 m/s2. Which statement is true?
a. The object will slow down, eventually coming to a complete stop.
b. The object cannot have a negative acceleration and be moving to the right.
c. The object will continue to move to the right, slowing down but never coming to a
complete stop.
d. The object will slow down, momentarily stopping, then pick up speed moving to the left.
3. A ball is thrown straight up. What are the velocity and acceleration of the ball at the highest
point in its path?
a. v = 0, a = 0.
b. v = 0, a = 9.8 m/s2 up.
c. v = 0, a = 9.8 m/s2 down.
d. v = 9.8 m/s up, a = 0.
e. v = 9.8 m/s down, a = 0.
4. You drop a rock off a bridge. When the rock has fallen 4 m, you drop a second rock. As the two
rocks continue to fall, what happens to their velocities?
a. Both increase at the same rate.
b. The velocity of the first rock increases faster than the velocity of the second.
c. The velocity of the second rock increases faster than the velocity of the first.
d. Both velocities stay constant.
5. You drive 4 km at 30 km/h and then another 4 km at 50 km/h. What is your average speed for
the whole 8-km trip?
a. More than 40 km/h.
b. Equal to 40 km/h.
c. Less than 40 km/h.
d. Not enough information.
6. A ball is dropped from the top of a tall building. At the same instant, a second ball is thrown
upward from the ground level. When the two balls pass one another, one on the way up, the
other on the way down, compare the magnitudes of their acceleration:
a. The acceleration of the dropped ball is greatest.
b. The acceleration of the ball thrown upward is greatest.
c. The acceleration of both balls is the same.
d. The acceleration changes during the motion, so you cannot predict the exact value when
the two balls pass each other.
e. The accelerations are in opposite directions.