Motion Review
Physical Science
1. True or False…
Motion is measured relative to a
reference point.
TRUE
Motion is measured relative to a
reference point.
2. True or False…
Average speed is the rate at which
an object is moving at a given
instant.
False
Instantaneous speed is the rate
at which an object is moving at a
given instant.
3. True or False…
A meter is a place or object used for
comparison to determine if
something is in motion.
FALSE
A reference point is a place or
object used for comparison to
determine if something is in motion.
4. True or False…
If a toy car traveling at 10 cm/s
passes a toy car moving at 10 cm/s
in the opposite direction, both cars
have the same velocity.
FALSE
If a toy car traveling at 10 cm/s
passes a toy car moving at 10 cm/s
in the opposite direction, both cars
have the same speed.
5. True or False…
A straight diagonal line on a
distance vs. time graph indicates
constant speed.
TRUE
A straight diagonal line on a
distance vs. time graph indicates
constant speed.
6. True or False…
A horizontal line on a distance vs.
time graph means that the object is
at rest.
TRUE
A horizontal line on a distance vs.
time graph means that the object is
at rest.
7. True or False…
A child riding on a merry-go-round
is accelerating because his direction
is changing.
TRUE
A child riding on a merry-go-round
is accelerating because his direction
is changing.
8. True or False…
The SI unit of velocity is the meter
per second per second.
FALSE
The SI unit of acceleration is the
meter per second per second.
9.True or False…
A straight line on a graph of speed
vs. time means that the object has
a constant acceleration.
TRUE
A straight line on a graph of speed
vs. time means that the object has
a constant acceleration.
10. True or False…
The steepness of a line graph is
referred to as the run.
FALSE
The steepness of a line graph is
referred to as the slope.
11.
A reference point is assumed to be
_______, or not moving.
11.
A reference point is assumed to be
__stationary_____, or not
moving.
12.
A change in an object’s position
relative to a reference point is called
_______________.
12.
A change in an object’s position
relative to a reference point is called
____motion___________.
13.
When riding a bicycle past a
building, you are not moving
relative to the ____________.
13.
When riding a bicycle past a
building, you are not moving
relative to the
___bicycle_________.
14.
Suppose you are sitting in a car at a
red light when a car moving toward
the north begins to pass you. If you
use the passing car as a reference
point, the direction in which you
appear to be moving is toward the
_____________.
14.
Suppose you are sitting in a car at a
red light when a car moving toward
the north begins to pass you. If you
use the passing car as a reference
point, the direction in which you
appear to be moving is toward the
south.
15.
The distance traveled by a moving
object per unit of time is called
____________________.
15.
The distance traveled by a moving
object per unit of time is called
______speed_____.
16.
The basic SI unit of length is the
_________________.
16.
The basic SI unit of length is the
meter.
17.
Speed that does not change is
referred to as ____________ speed.
17.
Speed that does not change is
referred to as constant speed.
18.
The statement that the motion of a
hurricane is 20 km per hour in an
easterly direction is a description of
the hurricane’s _______________.
18.
The statement that the motion of a
hurricane is 20 km per hour in an
easterly direction is a description of
the hurricane’s velocity.
19.
A speed of 15 km per hour is
abbreviated as 15 _____
19.
A speed of 15 km per hour is
abbreviated as 15 km/h.
20.
Acceleration is the rate of change in
_______________.
20.
Acceleration is the rate of change in
velocity.