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WorksheetsPhysical Science, Chapter 11, Motion, Post Assessment
Total questions: 33
Worksheet time: 24mins
Name
Class
Date
1.
Examine Figure 11-1, if you were standing under the tree which object would appear to be moving?
a)
the tree
b)
the boy
c)
the airplane
d)
the building
2.
A passenger in the rear seat of a car moving at a steady speed is at rest relative to
a)
the side of the road
b)
the front seat of the car
c)
a pedestrian on the corner ahead
d)
the wheels of the car
3.
Which distance can be most accurately measured with a ruler?
a)
the length of a river
b)
the distance between two cities
c)
the width of a book
d)
the size of an object under a microscope
4.
One kilometer equals 1000 meters. What does the prefix kilo- mean?
a)
1
b)
10
c)
100
d)
1000
5.
A person walks 1 mile every day for exercise, leaving her front porch at 9:00 AM and returning to her front porch at 9:25 AM. What is the total displacement of her daily walk?
a)
1 mile
b)
25 minutes
c)
0
d)
none of the above
6.
A person drives north 3 blocks, then turns east and drives 3 blocks. The driver then turns south and drives 3 blocks. How could the driver have made the distance shorter while maintaining the same displacement?
a)
by driving east 3 blocks from the starting point
b)
by driving north 1 block and east 4 blocks
c)
by driving west 3 blocks from the starting point
d)
by driving back to the starting point by the same route.
7.
What is the most appropriate SI Unit to express the speed of a cyclist in the last leg of a 10-km race?
a)
km/s
b)
km/h
c)
m/s
d)
cm/h
8.
Speed is the ratio of the distance an object moves to
a)
the amount of time needed to travel the distance.
b)
the direction the object moves
c)
the displacement of the object
d)
the motion of the object
9.
Instantaneous speed is measures
a)
at the starting point
b)
at a particular instant
c)
when the object reaches its destination
d)
over the duration of the trip
10.
A car traveled 88 km in 1 hour, 90 km in 2 hours and then 76 km in 1 hour before reaching its destination. What was the car's average speed?
a)
254 km/h
b)
209 km/h
c)
63.5 km/h
d)
74.5 km/h
11.
The slope of a line on a distance-time graph is
a)
distance
b)
speed
c)
time
d)
displacment
12.
A horizontal line on a distance-time graph means the object is
a)
moving at a constant speed
b)
slowing down
c)
moving faster
d)
at rest
13.
What is the speed of a bobsled whose distance-time graph indicates that it traveled 100m in 25s
a)
4 m/s
b)
0.25 mph
c)
250 m/s
d)
100 m/s
14.
Vector addition is used when motion involves
a)
more than one direction
b)
more than one speed
c)
more than one velocity
d)
all of the above
15.
The rate at which velocity changes is called
a)
speed
b)
acceleration
c)
vectors
d)
motion
16.
Which example identifies a change in motion that produces acceleration?
a)
a speed skater moving at a constant speed on a straight track
b)
a ball moving at constant speed around a circular track
c)
a particle moving in a vacuum at constant velocity
d)
a vehicle moving down the street at a steady speed.
17.
Objects in free fall near the surface of the Earth experience
a)
constant speed
b)
constant acceleration
c)
constant velocity
d)
constant distance
18.
Suppose you increase your walking speed from 1 m/s to 3 m/s in a period of 2 s. What is your acceleration
a)
1m/s2
b)
4 m/s2
c)
2 m/s2
d)
6 m/s2
19.
The slope of a speed-time graph indicates
a)
direction
b)
velocity
c)
acceleration
d)
speed
20.
The speed-time graph shows that a car moves at 10 m/s for 10s. The car's speed then steadily decreases until it comes to a stop at 30 s. Which of the following describes the slope of the speed-time graph from 10s to 30s.
a)
linear , horizontal
b)
linear, sloping downward
c)
curved, upward
d)
linear, sloping upward
21.
An object that is accelerating may be
a)
slowing down
b)
changing direction
c)
gaining speed
d)
all of the above
22.
A location to which you can compare other locations is called
a)
reference point
b)
motion
c)
location
d)
position
23.
The change of position over time is called
a)
position
b)
motion
c)
speed
d)
location
24.
True or False:
The motion of an object can change over the course of its movement
The motion of an object can change over the course of its movement
a)
true
b)
false
25.
The unit speed is measured in is
a)
m/s
b)
ft/min
c)
m/hr
d)
m/s^2
26.
A wheelchair racer completes a 100 meter course in 20 seconds. What is his speed?
d= 100 m
t= 20 s
d= 100 m
t= 20 s
a)
10 m/s
b)
5 m/s
c)
2 m/s
d)
0 m/s
27.
A soccer ball is kicked from 40 meters out. It takes 5 seconds to reach the goal. What speed was the ball traveling?
d= 40 m
t= 5 s
d= 40 m
t= 5 s
a)
6 m/s
b)
7 m/s
c)
8 m/s
d)
9 m/s
28.
Speed in a specific direction is called
a)
speed
b)
acceleration
c)
position
d)
velocity
29.
A vector is a quantity that has both size and
a)
speed
b)
altitude
c)
acceleration
d)
direction
30.
A car goes from 0 m/s to 60 m/s in a period of 5 seconds find its acceleration.
a)
10 m/s^2
b)
12 m/s
c)
12 m/s^2
d)
11 m/s
31.
A train slows from 20 m/s to 10 m/s over a time period of 5 seconds. Find the acceleration
a)
2 m/s
b)
2 m/s^2
c)
-2 m/s
d)
-2 m/s^2
32.
If a train slows down what type of acceleration does it have
a)
positive
b)
negative
c)
none
33.
LT4: The graph shows Ashley riding her bike to Maria's house.
What was occurring from point B to point C?
What was occurring from point B to point C?
a)
She was increasing her speed.
b)
She stopped for 4 minutes
c)
She was decreasing in speed
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