1D Motion Test – Honors Physics
Name: ____________________________
Part 1: Multiple Choice – Write the letter corresponding to the most correct answer on the line- 2 pts each
_____ 1. What is the speed of an object at rest?
a.
0.0 m/s
b.
1.0 m/s
c.
d.
9.8 m/s
9.81 m/s
_____ 2. Which of the following situations represents a negative displacement? (Assume positive position is measured
vertically upward along a y-axis.)
a.
A cat stands on a tree limb.
b.
A cat jumps from the ground onto a tree limb.
c.
A cat jumps from a lower tree limb to a higher one.
d.
A cat jumps from a tree limb to the ground.
_____ 3. Suppose you are given a position versus time graph. The slope of a line drawn tangent to a point on the curve of
this graph describes what quantity?
a.
acceleration
c.
instantaneous velocity
b.
displacement
d.
Position
______4.
When a car’s velocity is negative and its acceleration is negative, what is happening to the car’s motion?
a.
The car slows down.
c.
The car travels at constant speed.
b.
The car speeds up.
d.
The car remains at rest.
______ 5. The distance between Chicago and Honolulu is 6810 km. If an airplane travels at an average velocity of
km/h, approximately how long will the trip take?
a.
b.
7 h 30 m
5 h 30 m
c.
d.
851.2
8h
6h
______ 6. The graph to the right describes the motion of a cyclist. During 0 and 4
seconds, how far has it travelled?
a. 4.0 m
c.
0.75 m
b. 8.0 m
d.
0.5 m
______ 7. The graph to the right describes the motion of a cyclist. What is the
speed of the cycles at 4.0 s?
a. 0.75 m/s
c.
4.0 m/s
b. 3.0 m/s
d.
0.5 m/s
_______ 8. The graph to the right describes the motion of a cyclist. During the
interval shown, the cyclist is
a. slowing down.
c. traveling at the same speed.
b. speeding up.
d. at rest.
_______ 9. A ball is tossed vertically upward with a velocity of 10 m/s. At the
peak of its path, the ball has ____.
a. zero velocity
c. maximum velocity
b. minimum acceleration
d. maximum acceleration
_____ 10. The total displacement of the ball (in the question above) upon landing is ____.
a.
b.
c.
d.
zero
equal to the distance it traveled up multiplied by two
equal to the distance is traveled up
equal to the difference between the final and initial velocities divided by the acceleration due to gravity
_____ 11. Peter and Susan both stand on the edge of a vertical cliff.
V (Peter)
Susan throws a stone vertically downwards and, at the same
time, Peter throws a stone vertically upwards. The speed V
with which both stones are thrown is the same. Neglecting
air resistance, which one of the following statements is true?
A.
The stone thrown by Susan will hit the sea with
a greater speed than the stone thrown by Peter.
B.
Both stones will hit the sea with the same speed
no matter what the height of the cliff.
V (Susan)
Sea
C.
In order to determine which stone hits the sea
first, the height of the cliff must be known.
D.
In order to determine which stone hits the sea
first both the height of the cliff and the mass of
each stone must be known.
______12. Refer to the velocity - time graph in diagram K - 1.
The acceleration during interval VW is ____.
a.
b.
50 m/s2
25 m/s2
c. 5 m/s2
d. 2 m/s2
______13. Refer to the velocity - time graph in diagram K - 1. At which portion of the graph is the acceleration
negative?
a.
b.
VW
UV
c. TU
d. ST
______14.
Refer to the graphs in diagram K - 3. If these
are displacement - time graphs, which one would be a plot of
zero velocity?
a.
d.
graph y
graph k
b. graph p
e. graph j
c. graph m
______ 15.
Refer to the graphs in diagram K - 3. Suppose
graph “m” was a plot of velocity versus time. What would the corresponding displacement versus time graph look like?
a. graph y
b. graph p
c. graph m
d. graph k
e. graph j
______ 16.
Refer to the graphs in diagram K - 3. Suppose graph “j” was a plot of acceleration versus time. What
would the corresponding displacement versus time graph look like?
a. graph y
b. graph p
c. graph m
b.
d. graph k
e. graph j
______1 7. Which figure best represents the relationship between acceleration and time for a
a. graph y
b. graph p
c. graph m
d. graph k
freely falling body?
e. graph j
______ 18.
Refer to the graph of motion of an object in diagram K - 4. The graph
indicates that the velocity at B is ___.
a.
b.
c.
d.
increasing and the acceleration is positive
increasing and the acceleration is negative
decreasing and the acceleration is positive
decreasing and the acceleration is negative
_____ 19. A student walks to school 3 blocks away and then returns home for lunch. After lunch he returns to school.
His total distance travelled is _____.
a. 9 blocks
b. 6 blocks
c. 3 blocks
d. 0 blocks
_____ 20. A car travels 500 km in 4 hours and another car travels the same 500 km in 5 hours. The cars have the same
_______.
a.
b.
c.
d.
velocity
displacement
average speed
acceleration
Part 2: Free Response. Show all work for full credit and express all answers to the correct number of significant
figures. Assume g = 9.81 m/s2
21. A bullet is fired into the air, leaving the barrel of the gun at t = 0. The graph below shows the variation with time t of
the vertical height h of the bullet. Estimate the instantaneous velocity at t = 5 seconds. Show your work. [3 pts]
22 A horse trots past a fencepost located 14 m to the left of a gatepost. It then passes another fencepost
located 15 m to the right of the gatepost 14 s later. What is the average velocity of the horse? [2pts]
23. A toy car is given an initial velocity of 7.0 m/s and experiences a constant acceleration of 1.0 m/s What
is the final velocity after 6.0 s?
24. A skater glides off a frozen pond onto a patch of ground at a speed of 2.9 m/s. Here she is slowed at a
constant rate of 3.00 m/s . How fast is the skater moving when she has slid 0.38 m across the ground?
[3 pts]
25. An airplane, taking off from an airfield, has a 370 m runway. If it starts from rest, moves with constant
acceleration, and makes the run in 30.0 s, with what velocity does it take off from the end of the
runway? [3pts]
26. A model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with a
constant upward acceleration of 2.00 m/s2 until its engines stop at an altitude of 150m. What is the
maximum height reached by the rocket? [4 pts]
27. A rock is dropped from a sea cliff by a child, and the sound of it striking the ocean is heard by the child
3.2 s later. If the speed of sound is a constant speed of 340 m/s, how high is the cliff? Neglect air
resistance. (Complete on separate piece of paper – show all work and clear reasoning.) [4 pts]