Motion Review
C) position
Motion occurs when an object changes its
__________.
A) mass
B) volume
C) position
D) force
C) meter
The SI unit of distance is the __________.
A) gram
B) liter
C) meter
D) mile
A) position
The distance between an object and a reference
point is the object's __________.
A) position
B) velocity
C) displacement
D) neutral point
B) displacement
The distance between the final position and the
starting position is the __________.
A) acceleration
B) displacement
C) velocity
D) differential
A) speed
__________ is the distance an object travels per
unit of time.
A) Speed
B) Velocity
C) Acceleration
D) Displacement
C) 3.7 km south
If you travel 1.7 km north from your house at
noon, and at 6:00 PM you travel 5.4 km south,
what is your displacement?
A) 7.1 km south
B) 3.7 km
C) 3.7 km south
D) 7.1 km north
B) 11 km
At 8:00 AM you leave home and walk 0.5 km to a
friend's house. At 11:30 AM you return home, then
travel by car to the mall, which is 10 km away, and
arrive at 11:45 AM. What is the total distance
traveled?
A)
10.5 km
B)
11 km
C)
10 km
D) 2.8 km/h
D) velocity
The direction and speed of an object is
described by its __________.
A) displacement
B) average speed
C) average displacement
D) velocity
C) 4 km/h
If a student leaves home at 7:30 AM to walk to
his school 2 km away, stops at a neighbor's
house for 15 min, then arrives at school at 8:00
AM, what is the student's average speed for the
trip to school?
A) 2 km/h
B) 2.67 km/h
C) 4 km/h
D) 8 km/h
C) Dividing total distance traveled by
the total time
Average speed is found by __________.
A)
dividing the displacement by the total
time spent
B)
multiplying total distance traveled by
the total time
C)
dividing total distance traveled by the
total time
D) multiplying the displacement by the
total time spent
A) Instantaneous speed
__________ is the speed of an object at any
instant of time.
A) Instantaneous speed
B) Average speed
C) Velocity
D) Acceleration
A) 6 miles, B) 0 miles
You run from your house to a friend’s house that
is 3 miles away. You then walk home.
A) What distance did you travel?
B) What was your displacement?
A) S = d/t
Which of the following equations is used for
calculating speed?
A) s = d/t
B) s = t/d
C) s = (vf - vI)
D) s = (vf - vI/t)
D) 0.33 km/min
What is Bill's average running speed?
A)
B)
C)
D)
3.0 km/min
3.3 km/min
330 km/min
0.33 km/min
B) Jane
Which runner has the slowest average speed for
this run?
A)
B)
C)
D)
Daisy
Jane
Bill
Joe
C) Either speed or direction
A change in velocity means a change in
_______.
A) direction only
B) speed only
C) either speed or direction
D) always both speed and direction
D) 1.4 m/s
Calculate the speed of a swimmer who swims
200 m in 140 s.
A) 1.0 m/s
B) 1.8 m/s
C) 1.9 m/s
D) 1.4 m/s
A) 6.2 m/s
In a 500-m race, a runner finishes in 80.4 s.
Calculate the speed of this runner.
A) 6.2 m/s
B) 7.8 m/s
C) 4.5 m/s
D) 9.0 m/s
1-B, 2-C, 3-A
Match the description
to the picture.
1. The object is
standing still.
2. The object moves at
a constant speed for
5 seconds, then
stands still.
3. The object moves at
a constant speed.
A
B
C
B) 0 m/min
What was Swimmer
A's average speed
during the period 10
min to 20 min?
A) 40 m/min
B) 0 m/min
C) 400 m/min
D) 4000 m/min
A, C
B
D
B
D
C) 1.7 m/s
Calculate the speed of a swimmer who swims
150 m in 88 s.
A) 1.1 m/s
B) 1.9 m/s
C) 1.7 m/s
D) 2.0 m/s
1-B, 2-A
Match the description to
the picture.
1. The object starts
moving slowly, then
speeds up.
2. The object moves
with a steady speed
away from the start,
then reverses
direction and moves
towards home at the
same speed.
A
B
B
Which object is moving faster (A or B)?
A) 8.2 m/s
In a 150-m race, a runner finishes in 18.2 s.
Calculate the speed of this runner.
A) 8.2 m/s
B) 7.7 m/s
C) 8.9 m/s
D) 10.2 m/s
A) 31 km, B) 3 km EAST
If each square is 1 km,
A) What is the distance traveled?
B) What is the displacement?
D) 67.7 km/h
A freight train travels from Louisburg to
Hamburg, a distance of 420 km. If the route
takes 6.2 h, what is the train's speed?
A) 55 km/h
B) 63.2 km/h
C) 72.2 km/h
D) 67.7 km/h
1 and 3
Suppose you run three different paths from A to
B. Along which path(s) would your distance
travelled be different from your displacement?
A) 55.7 km/h
A freight train travels from Miamistown to
Fredericksburg, a distance of 680 km. If the
route takes 12.2 h, what is the train's speed?
A) 55.7 km/h
B) 66.3 km/h
C) 68.8 km/h
D) 82.2 km/h
True-as long as it returns to where it
started from.
True or False: An object moving for 10 s can
have zero displacement.
Explain.
C) 87.5 km/h
A passenger train travels from Larkspur to
Collossett, a distance of 210 km. If the route
takes 2.4 h, what is the train's speed?
A) 42.3 km/h
B) 60.3 km/h
C) 87.5 km/h
D) 90.0 km/h
D) 4800 m/h
What was Swimmer
C's average speed?
A)
B)
C)
D)
4.8 m/h
2.4 m/h
2400 m/h
4800 m/h
B) 76.8 km/h
A passenger train travels from Orange Grove to
Lyman, a distance of 430 km. If the route takes
5.6 h, what is the train's speed?
A) 72.2 km/h
B) 76.8 km/h
C) 80.4 km/h
D) 92.8 km/h