Physics 1 Practice Exam
Name: _________________________________________________
Short Problems and Questions 2 points each. Circle the best answer.
Match each v-t graph on the left with the a-t graph on the right that best
describes the motion. (1 pt ea.)
1.
(a) goes with
__________________
2.
(b) goes with
__________________
3. (c ) goes with
__________________
4. Which v-t graph corresponds to an x-t graph that is parabolic?
(a)
(b)
(c)
5. You drop a baseball and penny off a high cliff. Ignoring air resistance, which falls with the greatest
acceleration?
a) baseball
b) penny
c) both same
If you throw a ball straight up in the air at 30m/s it stops 3 seconds later and then fall back down. Ignore
air resistance.
6) What is the acceleration due to gravity at the top of its path where it momentarily stops.?
a) 9.80 m/s2
b) more than 9.80 m/s2
c) less than 9.80 m/s2
d) unknown e) zero
c) less than 9.80 m/s2
d) unknown e) zero
7) What is the speed of the ball at the top of the path?
a) 9.80 m/s2
b) more than 9.80 m/s2
8. Who is in the leaning tower dropping stuff?
a) Newton b) Galileo c) Copernicus
d) Pisa
e) Fergie
9. What was he trying to prove by the Tower experiment?
a) That heavier objects fall faster.
b) That heavier objects do not fall faster.
c) That force is needed for motion.
d) That Fergie’s Leaning Tower wanna go down.
10. What quantity has an SI unit of kg?
a) force
b) mass
c) acceleration
d) weight
Problems. Show all your work for any credit. NEATNESS COUNTS. Box final answers. Circle the
best answer.
1. An automobile enters a freeway on-ramp at 15.0m/s and accelerates uniformly up to 25.0 m/s in a time
of 10.0s. i) What is the automobile’s acceleration?
a) 9.80 m/s2
b) 1.5 m/s2
c) 2.5 m/s2
d) 1.0 m/s2
e) zero
ii) What is the distance traveled in this amount of time?
a) 100m
b) 150m
c) 200 m
d) 250 m
e) zero
2. What is the net displacement from t = 0s to t = 8s of the particle
whose velocity with time is shown in the graph?
a. 24 m
b. 32 m
c. 34 m
d. 36 m
e. 64 m
3. Find x and y.
4. A rocket, initially at rest, is fired vertically with a net upward acceleration of 10 m/s2. At an altitude of 0.50 km,
the engine of the rocket cuts off. What is the maximum altitude it achieves?
a) 0.5 km
b) 1.3 km
c) 1.6 km
d) 1.0 km
e) 2.1 km
5. You are driving a car going 80 km/hr and you decelerate at a rate of 5m/s2 for 3 seconds. How far did
you travel during that acceleration?
a) 90m
b) 75m
c) 55 m
d) 45m
e
e) 25m
6. What is your final velocity after the acceleration?
a) 95m/s
b) 55 m/s
c) 35m/s
d) 18 m/s
e) 7 m/s
7. A ball is shot up from a 12.0 m high cliff at 30.0m/s. With what
speed does the ball hit the ground?
a) 43 m/s
b) 34 m/s
c) 30 m/s
d) 25 m/s
e) 9.8 m/s
8. How high above the ground does the ball travel?
a) 32 m
b) 46 m
c) 58m
d) 102m
e) 122 m
9. A motorist drives along a straight road at a constant speed of 15.0 m/s. Just as she passes a parked
motorcycle police officer, the officer starts to accelerate at 2.00 m/s2 to overtake her. Assuming the officer
maintains this acceleration, determine the time it takes the police officer to reach the motorist. Sketch the
motion of each in the same plot of x-t.
a.
4.0 s
b.
5.0 s
c.
13 s
d.
15 s
e.
17 s
10. Driver A is cruising along enjoying the fall colors. Driver B starts to accelerate at a constant rate the instant
Driver A passes her, in the same direction. Their velocities are shown as functions of below. At what time and
distance as measured from the origin, does Driver B pass Driver A?
v(m/s)
Car B
40
Car A
20
t (s)
1
2
3
4
5
6
7
8
9