10. Interpret The Graph Below:
The graph shows
an object which
is not moving (at
rest).
The distance
stays the same
as time goes by
because it is not
moving.
12. Interpret The Graph Below:
The graph shows
that the objects
distance increases
as time passes.
The object is moving
and so it has
velocity.
The straight line
shows it is a
constant (not
changing).
18. Interpret The Graph Below:
In the first part of
the graph the object
is moving with
constant velocity.
In the second part of
the graph the object
is at rest (not
moving).
In the third part the
object is again
moving with
constant velocity.
22. Interpret The Graph Below:
The graph shows
that the objects
velocity is
increasing as time
passes – it is
accelerating.
The straight line
shows that it is
constant
acceleration.
27. An elevator travels a distance of 220 m from the
first floor to the 60th
floor in 27.5 s. What is the
elevator’s average speed?
v = d/t
v = 220 m
27.5 s
v = 8 m/s
28. What is the net force on a
Dragster with a mass of
900 kg if its acceleration
is 32.0 m/s2
?
F = ma
F = 900 kg x 32 m/s2
F = 28,800 N
29. At the end of a race,At the end of a race,
a sprinter with aa sprinter with a
mass of 80 kg has amass of 80 kg has a
speed of 10 m/s.speed of 10 m/s.
What is the sprinter’sWhat is the sprinter’s
momentum?momentum? p = mv
p = 80 kg x 10 m/s
p = 800 kg m/s
30. A ball rolls down a ramp, starting from rest.
After 2 seconds, its velocity is 6 meters per
second. What is the acceleration of the
ball?
vi = 0 m/s
vf = 6 m/s
t = 2 s
a = (6 m/s – 0 m/s) / 2 s
a = 3 m/s2
31. A jet airliner starts at rest and moves down theA jet airliner starts at rest and moves down the
runway. After accelerating for 20 s, itrunway. After accelerating for 20 s, it
reaches a final speed of 80 m/s. What isreaches a final speed of 80 m/s. What is
the acceleration of the jet airliner?the acceleration of the jet airliner?
a = vf – vi
t
a = 80m/s – 0 m/s
20 s
a = 4 m/s/s or 4 m/s2
32. A car is being pulled
by a tow truck. What
is the car’s mass if
the net force on the
car is 3,000 N and it
has an acceleration
of 2.0 m/s2
?
m = F/a
m = 3,000 N
2.0 m/s2
m = 1500 kg
33. A. motion
B. reference point
C. displacement
D. direction
Which of these refers to the
difference between the initial
position and the final position of
an object?
34. A. speed
B. constant speed
C. instantaneous speed
D. average speed
The total distance traveled divided
by the total time taken to travel that
distance is known as which of
these?
35. A. a wavy line
B. a crooked line
C. a straight line
D. a curved line
How is constant speed
represented on a distance-time
graph?
36. A. increasing speed
B. decreasing speed
C. a change in direction
D. all of the above
An object accelerates when its
velocity changes as a result of
which of these?
37. A. the horizontal axis (the x-axis)
B. the vertical axis (the y-axis)
C. both of these
D. neither of these
On a speed-time graph, where is
time located?
38. A. displacement
B. position
C. reference direction
D. reference point
What term refers to a starting
point that can be used to locate a
place or thing?
46. A. zero
B. one
C. equal
D. balanced
When equal forces act on an
object in opposite directions, what
is the net force on the object?
47. A. Newton’s third law of motion
B. Newton’s second law of motion
C. Newton’s first law of motion
D. law of conservation of momentum
Which law explains that every
force has a reaction force in the
opposite direction?
48. A. velocity
B. momentum
C. inertia
D. elastic collision
Which is a measure of how hard it
is to stop a moving object?
49. A. unbalanced
B. terminal
C. centripetal
D. balanced
Which term refers to forces that
combine with a net force of zero?
50. A. velocity
B. terminal velocity
C. net force
D. inertia
The tendency of an object to
resist a change in its motion is
called what?
51. A. Newton’s third law of motion
B. Newton’s second law of motion
C. Newton’s first law of motion
D. law of conservation of momentum
Which law states that the total
momentum of a group of objects
stays the same unless outside
forces act on the objects?
53. A. unbalanced
B. proportional
C. noncontact
D. negative
Which describes the net force
of different forces acting in the
same direction?
54. A. stops
B. speeds up
C. slows down
D. changes direction
If the net force acting on a moving
object is in the direction that the
object is moving, the object does
what?
