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PS Semester 2 Review

Total questions: 184

Worksheet time: 4hrs 43mins

Name
Class
Date
1.
Convert from meters to cm:  9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
2.
Convert 17 m to cm:
a)
0.17 cm
b)
0.017 cm
c)
1,700 cm
d)
170 cm
3.
Convert 300 meters to centimeters:
a)
3000 cm
b)
0.3 cm
c)
30,000 cm
d)
3 cn
4.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
5.
240 cm = ___________ m
a)
2400
b)
24
c)
2.4
d)
0.24
6.
2804 mg = ___________ g
a)
0.2804
b)
2.804
c)
28.04
d)
280.4
7.
Convert 300 cm to m:
a)
3 m
b)
30 m
c)
0.3 m
d)
0.03 m
8.
If an eraser is 25 millimeters long, how many centimeters long is it?
a)
2
b)
2.5
c)
25
d)
250
9.
820 mg = _____ cg
a)
82,000
b)
82
c)
0.82
d)
0.0082
10.

Jennifer’s height is 1.6307 m tall.  She made the following measurements of her height:

a.      1.6 m

b.     1.64136 m

c.      2.064 m

d.     1.63 m

Which of the above measurements is the most accurate measurement?

a)

A

b)

B

c)

C

d)

D

11.

Jennifer’s height is 1.6307 m tall.  She made the following measurements of her height:

a.      1.6 m

b.     1.64136 m

c.      2.064 m

d.     1.63 m

Which of the above measurements is the least accurate measurement?

a)

A

b)

B

c)

C

d)

D

12.

Jennifer’s height is 1.6307 m tall.  She made the following measurements of her height:

a.      1.6 m

b.     1.64136 m

c.      2.064 m

d.     1.63 m

Which of the above measurements is the most precise measurement?

a)

A

b)

B

c)

C

d)

D

13.

Jennifer’s height is 1.6307 m tall.  She made the following measurements of her height:

a.      1.6 m

b.     1.64136 m

c.      2.064 m

d.     1.63 m

Which of the above measurements is the least precise measurement?

a)

A

b)

B

c)

C

d)

D

14.

The Physics Avenger’s mass is 86.202 kg.  He made the following measurements of his mass:

a.     23.02 kg

b.     86.2 kg

c.     46.11202 kg

d.     86.447 kg

Which of the above measurements is the least precise measurement?

a)

A

b)

B

c)

C

d)

D

15.

The Physics Avenger’s mass is 86.202 kg.  He made the following measurements of his mass:

a.     23.02 kg

b.     86.2 kg

c.     46.11202 kg

d.     86.447 kg

Which of the above measurements is the most precise measurement?

a)

A

b)

B

c)

C

d)

D

16.

The Physics Avenger’s mass is 86.202 kg.  He made the following measurements of his mass:

a.     23.02 kg

b.     86.2 kg

c.     46.11202 kg

d.     86.447 kg

Which of the above measurements is the most accurate measurement?

a)

A

b)

B

c)

C

d)

D

17.

The Physics Avenger’s mass is 86.202 kg.  He made the following measurements of his mass:

a.     23.02 kg

b.     86.2 kg

c.     46.11202 kg

d.     86.447 kg

Which of the above measurements is the least accurate measurement?

a)

A

b)

B

c)

C

d)

D

18.
Your teacher has asked you to explain the difference between quantitative and qualitative observations. Which statement is correct?
a)

Quantitative observations use numbers, qualitative uses the words.

b)

Quantitative observations use the words, qualitative uses numbers.

c)
Quantitative observations use measurement, qualitative uses numbers.
d)

Quantitative observations use colors, qualitative uses the world.

19.
There are nine dolphins in this pod.
a)
qualitative
b)
quantitative
20.
Dolphins eat the equivalent of 4 - 5% of their body mass each day.
a)
qualitative
b)
quantitative
21.
Dolphins have smooth skin.
a)
qualitative
b)
quantitative
22.
Dolphin colors range from gray to white.
a)
qualitative
b)
quantitative 
23.
There are 16 red marbles in the bag.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
24.
The pendulum made 17 full swings in 30 seconds.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
25.
The speed of the car was 45 mph.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
26.
The leaves on the plant are turning brown.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
27.
The plant has grown 4 cm since yesterday.
a)
Qualitative
b)
Quantitative
c)
Both
d)
Neither
28.

A bug repellent was sprayed on one arm. On the other arm, the bug repellent was not sprayed. After 2 hours, the number of bug bites are recorded. What is the independent variable?

a)

The type of bug repellent

b)

If an arm was sprayed with bug repellent or not

c)

The number of bug bites

29.

A bug repellent was sprayed on one arm. On the other arm, the bug repellent was not sprayed. After 2 hours, the number of bug bites are recorded. What is the dependent variable?

a)

The type of bug repellent

b)

If an arm was sprayed with bug repellent or not

c)

The number of bug bites

30.
Marcos wants to know: Does the type of gasoline put in a car effect how fast the car can drive? What is the independent variable?
a)
Type of gasoline
b)
which car the gas is put into
c)
how fast the car can drive
d)
how much gas is put into the car
31.
Angelina set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Who set up the experiment (Ms. S, etc)
32.

Does the flavor of ice cream effect how fast the ice cream melts? The flavor of ice cream is the....

a)

independent variable

b)

dependent variable

33.

An apple’s freshness will last longer if they are refrigerated. If you did an experiment to test this, the freshness would be the...

a)

independent variable

b)

dependent variable

34.
Identify the dependent variable:
A study was done to find if different tire treads affect the braking distance of a car.
a)
The car
b)
The distance the car took to brake 
c)
The different tire treads
d)
The drive
35.

One chicken is injected with a growth hormone while another chicken is not injected with a growth hormone. After one year, both chickens are weighed. What is the independent variable?

a)

If a chicken was injected with a growth hormone or not

b)

The weight of the chicken

c)

The type of chicken

36.

One chicken is injected with a growth hormone while another chicken is not injected with a growth hormone. After one year, both chickens are weighed. What is the dependent variable?

a)

If the chicken was injected with a growth hormone or not

b)

The weight of the chicken

c)

The type of chicken

37.
Sara walks from Point A to Point B. Which is true?
a)
Distance and displacement are EQUAL
b)
Distance is less than displacement
38.
Find the distance Sara walks from A to B,  B to C then C to D?
a)
11m
b)
3m
c)
5m
39.

Jerry walked from home to school, then from the school to the park. What is his total displacement?

a)

2 km

b)

5 km

c)

8 km

d)

10 km

40.

Jerry walked from home to school, then from the school to the park. What is his total distance?

a)

2 km

b)

5 km

c)

8 km

d)

10 km

41.

From the figure, what is the displacement?

a)

20 meters

b)

25 meters

c)

15 meters

d)

25 meters NE

42.

Scott travels north 5 miles and then goes west 3 miles before coming straight back south 2 miles. What is his distance?

a)

10 miles

b)

7 miles

c)

8 miles

d)

6 miles

43.

Billy runs 400 meters to Andy's house, turns around, and runs 400 meters back home. What is Billy's distance?

a)

0 meters

b)

400 meters

c)

800 meters

d)

1600 meters

44.

Billy runs 400 meters to Andy's house, turns around, and runs 400 meters back home. What is Billy's displacement?

a)

0 meters

b)

400 meters

c)

800 meters

d)

1600 meters

45.
 Jermaine runs exactly 2 laps around a 400 meter track. What is the displacement?
a)
800
b)
400
c)
0
d)
200
46.
Liza is swimming laps from one end of a 50 meter pool to the other. Going from one end to the other is considered one lap. If she swims four complete laps, which statement is TRUE?
a)
Her distance and displacement are both zero.
b)
Her distance is zero, but her displacement is 200 meters.
c)
Her distance is 200 meters, but her displacement is zero.
d)
Her distance and displacement are both 200 meters.
47.

The change in an objects position from the final position to initial position.

a)

displacement

b)

distance

c)

motion

d)

reference point

48.
Ivan walks 10 meters west to the water fountain, then runs 2 meters east to his class to avoid a lockout. His displacement would be:
a)
8 meters
b)
8 meters, east
c)
8 meters, west
d)
12 meters
49.

Two people walk across a parking lot. Their paths are shown in the image. Who traveled with a larger displacement?

a)

Person A

b)

Person B

c)

They both had the same displacement.

50.

When the total path length that an object has traveled is measured this is called...

a)

displacement

b)

position

c)

distance

d)

reference point

51.
Wind blowing at 20 mph.Vector or scalar?
a)
Scalar
b)
Vector
52.
30 m/sec, East. Scalar or Vector
a)
Scalar
b)
Vector
c)
Neither
53.
A deer running 15 meters per second due west.Vector or scalar?
a)
Scalar
b)
Vector
54.
A quantity that has both magnitude and direction is called a scalar quantity.
a)
True
b)
False
55.

Two cars are travelling at 10 m/s, in different directions. Select the sentences that are true.

a)

Their speeds are the same.

b)

Their speeds are different.

c)

Their velocities are the same.

d)

Their velocities are different.

56.
This is speed in a specific direction.
a)
Velocity
b)
Motion
c)
Position
57.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
58.
A runners races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
59.
How far will a person go if they jog for 2 hours at a speed of 12 km/hr?
a)
6 km
b)
0.5 km
c)
10 km
d)
24 km
60.
Shona cycles at an average speed of 8km/h. How far has she travelled if she cycles for 4 hours?
a)
55km
b)
32km
c)
43km
d)
32miles
61.
Total distance divided by total time is
a)
average speed
b)
constant speed
c)
instantaneous speed
d)
acceleration
62.
An aircraft carrier made a trip to Guam. The trip took four hours at an average speed of 6 km/h. How far did the ship travel?
a)
24 km
b)
1.5 km
c)
0.67 km
d)
5 km
63.
If Mike rides his motorcycle at an average speed of 20 m/s for 500 seconds, how far does he ride?
a)
10,000 m
b)
25 m
c)
0.04 m
d)
250 m
64.
Sarah backstrokes at an average speed of 8 meters per second. How long will it take her to complete a 200-meter race?
a)
0.04 s
b)
1600 s
c)
50 s
d)
25 s
65.
The unit for speed is:
a)
m/s
b)
s
c)
m
d)
km
66.

Sophia was trying to explaining to Tyler how to find the speed. What equation should she use to calculate speed?

a)

speed = time/distance

b)

speed = distance X time

c)

speed = voleicty X time

d)

speed = distance/time

67.
What is the speed of an object that travels 60 meters in 4 seconds?
a)
240 m/s
b)
15 m/s
c)
0.067 m/s
d)
15 mph
68.

Gabriel sprinted down the hallway for a science project. He ran a total of 40 meters in 20 seconds. What was his average speed?

a)

2 meters per second

b)

20 meters per second

c)

40 meters per second

d)

10 meters for second

69.
a)
b)
c)
d)
70.
a)
b)
c)
d)
71.
a)
b)
c)
d)
72.
a)
b)
c)
d)
73.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
74.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
75.
How long did it take this object to travel back to its reference/starting point?
a)
20 s
b)
30 s
c)
60 s
d)
100 s
76.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
77.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
78.
How many times does this object STOP moving?
a)
None
b)
Once
c)
Twice
d)
Three times
79.
According to the graph how far does the person travel in the first 5 seconds?
a)
2 m
b)
10 m
c)
0 m
d)
5 m
80.

Segment O-A The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

81.

Segment A-B The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

82.

Segment B-C The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

83.

Segment C-D The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

84.

Segment D-E The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

85.

Segment E-F The bus is _________________.

a)

at rest (stopped)

b)

returning (to original position)

c)

moving forward

86.

A student walks 2.0 km in a time of 30 minutes. The student then stop for 15 minutes to eat a snack then travels 1.0 km in 15 minutes.

Which graph shows the journey described?

a)
b)
c)
d)
87.

Anne cycles from Bristol to Salisbury.

The diagram shows the distance-time graph of her journey.


What is Anne's speed for the first two hours of her journey?

a)

40 mph

b)

30 mph

c)

20 mph

d)

10 mph

88.

Where is the object stopped?

a)

A

b)

B

c)

C

d)

D

89.

Where is the object moving back to the origin?

a)

A

b)

B

c)

C

d)

D

90.

Where is the object moving away from the origin at the quickest speed?

a)

A

b)

B

c)

C

d)

D

91.

What is the speed of the object during segment B?

a)

0.5 m/s

b)

1.3 m/s

c)

2 m/s

d)

2.5 m/s

92.
What is this graph showing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
93.

Which graph shows the object moving at a constant speed away from the origin?

a)

A

b)

B

c)

C

d)

D

94.

Which graph shows the object moving from fast to slow?

a)

A

b)

B

c)

C

d)

D

95.
Describe the motion
a)
Slow to fast;   Negative direction
b)
Fast to slow;   Negative direction
c)
Fast to slow;   Positive direction
d)
Slow to fast;   Positive direction
96.

Describe the motion

a)

Stationary

b)

Constant speed

c)

Acceleration

d)

Deceleration

97.
What is this graph showing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
98.

In which of the following graphs below are both runners moving at the same speed?

a)
b)
c)
d)
99.

This is the distance-time graph of a person on a walk.

During segment AB, the person was...

a)

walking at a constant speed

b)

speeding up

c)

slowing down

d)

stopped

100.

This is the distance-time graph of a person on a walk.

During segment AB, the person was...

a)

walking in the positive direction

b)

walking in the negative direction

c)

stopped so they have no direction

101.

This is the distance-time graph of a person on a walk.

During segment BC, the person was...

a)

walking at a constant speed

b)

speeding up

c)

slowing down

d)

stopped

102.

This is the distance-time graph of a person on a walk.

During segment BC, the person was...

a)

walking in the positive direction

b)

walking in the negative direction

c)

stopped so they have no direction

103.

This is the distance-time graph of a person on a walk.

During segment CD, the person was...

a)

walking at a constant speed

b)

speeding up

c)

slowing down

d)

stopped

104.

This is the distance-time graph of a person on a walk.

During segment CD, the person was...

a)

walking in the positive direction

b)

walking in the negative direction

c)

stopped so they have no direction

105.

This is the distance-time graph of a person on a walk.

During segment DE, the person was...

a)

walking at a constant speed

b)

speeding up

c)

slowing down

d)

stopped

106.

This is the distance-time graph of a person on a walk.

During segment DE, the person was...

a)

walking in the positive direction

b)

walking in the negative direction

c)

stopped so they have no direction

107.

This is the distance-time graph of a person on a walk.

During segment EF, the person was...

a)

walking at a constant speed

b)

speeding up

c)

slowing down

d)

stopped

108.

This is the distance-time graph of a person on a walk.

During segment EF, the person was...

a)

walking in the positive direction

b)

walking in the negative direction

c)

stopped so they have no direction

109.

This is the distance-time graph of a person on a walk.

During segment FG, the person was...

a)

walking at a constant speed

b)

speeding up

c)

slowing down

d)

stopped

110.

This is the distance-time graph of a person on a walk.

During segment FG, the person was...

a)

walking in the positive direction

b)

walking in the negative direction

c)

stopped so they have no direction

111.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up  
112.

In each of the following cases, determine where the car has no acceleration?

a)

A car speeds up after a stoplight turns green.

b)

A car slows down as it approaches a red light

c)

A car with the cruise control set at 80 km/h going down a straight highway

d)

A car turning a curve at a constant speed

113.

The SI unit for acceleration is

a)

mph

b)

ft/sec

c)

m/s2

d)

m/s

114.

When are you undergoing an acceleration in a car? (Choose all that are correct)

a)

speed up

b)

slow down

c)

make turns

d)

constant speed

115.
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
116.
A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.
a)
2.2m/s2
b)
7.0m/s2
c)
5.7m/s2
d)
70m/s2
117.
A dog runs with an initial speed of 7.5 m/s on a waxed floor.  It slides to a stop in 15 seconds.  What is the acceleration?
a)
-7.5 m/s
b)
-7.5 m/s2
c)
-0.5 m/s2
d)
7.5 mi//hr
118.
Acceleration can be classified as _______________
a)
Speeding up
b)
Slowing Down
c)
Changing directions
d)
All of the above
119.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
120.
Name the missing force...
a)
spring force
b)
weight force
c)
normal force
d)
buoyant force
121.
Name the missing force...
a)
applied force
b)
weight force
c)
lift
d)
normal force
122.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
123.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
124.
Name the missing force...
a)
normal force
b)
applied force
c)
frictional force
d)
tension force
125.

Whenever an object is moving across a surface, there is always this force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

126.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

normal

b)

abnormal

c)

static

d)

inertia

127.

The force exerted by ropes and chains is called

a)

tension

b)

normal

c)

elastic

d)

mechanical

128.
A box is moving to the left up a ramp. Which way is the force of friction pointing?
a)
down the ramp to the right
b)
up the ramp to the left
c)
there is no friction
d)
straight up
129.
What is the direction of the force of gravity acting on the box?
a)
down the ramp to the right
b)
straight up
c)
straight down
d)
up the ramp to the left
130.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
131.

In which situation are the force balanced?

a)

top

b)

bottom

c)

both

d)

Neither is balanced

132.

What is the total force on the object pictured? (consider right to be positive)

a)

-3 N

b)

5 N

c)

4 N

d)

8 N

e)

11 N

133.

What is the total force? (consider right to be positive)

a)

17 N

b)

3 N

c)

-3 N

d)

-17 N

134.

Calculate the total force shown in the  diagram? (consider up to be positive)

a)
41 N
b)

-25 N

c)
16 N
d)
9 N
e)

-9 N

135.

What is the total force? (consider right to be positive)

a)

-65 N

b)

65 N

c)

-35 N

d)

35 N

136.

Find the total force on this object:

(assume right and up are positive)

- round your answer to the nearest whole number

- only type in the number (not the units)

(a)  

137.

Find the total force on this object:

(assume right and up are positive)

- round your answer to the nearest whole number

- only type in the number (not the units)

(a)  

138.

The tendency of an object to resist a change in its motion is called

a)

inertia

b)

friction

c)

tension

d)

gravity

139.

Without an unbalanced force, a moving object will not only keep moving, but its ______________________________ will also remain the same.

a)

force and motion

b)

speed and time

c)

speed and direction

d)

inertia and distance

140.

How can you use Newton’s first law to start a skateboard to roll?

a)

The skateboard won’t move unless you push off from the pavement with one foot. The force you apply when you push off is stronger than the force of friction that opposes the skateboard’s motion. As a result, the force on the skateboard is unbalanced, and the skateboard moves forward.

b)

The skateboard won’t move unless you push off from the pavement with one foot. The force you apply when you push off is weaker than the force of friction that opposes the skateboard’s motion. As a result, the force on the skateboard is balanced, and the skateboard moves forward.

141.

How can you use Newton’s first law to stop your skateboard?

a)

Once the skateboard starts moving, it would keep moving at the same speed and in the same direction if not for another unbalanced force. That force is gravity between the skateboard and the pavement. The force of gravity is unbalanced because you are no longer pushing with your foot to keep the skateboard moving. That’s why the skateboard stops.

b)

Once the skateboard starts moving, it would keep moving at the same speed and in the same direction if not for another unbalanced force. That force is friction between the skateboard and the pavement. The force of friction is unbalanced because you are no longer pushing with your foot to keep the skateboard moving. That’s why the skateboard stops.

142.

When an object is at rest and the forces on it are ___________, this object will remain at rest.

a)

balanced

b)

unbalanced

143.

When an object is at rest and the forces on it are ___________, this object will begin to accelerate.

a)

balanced

b)

unbalanced

144.

When an object is moving and the forces on it are ___________, this object will keep moving at a constant velocity.

a)

balanced

b)

unbalanced

145.

When an object is moving and the forces on it are ___________, this object will begin to accelerate.

a)

balanced

b)

unbalanced

146.

This object is...

a)

moving at a constant velocity

b)

accelerating to the left

c)

accelerating to the right

d)

not enough information to tell

147.

This object is...

a)

moving at a constant velocity

b)

accelerating to the left

c)

accelerating to the right

d)

not enough information to tell

148.

This object is moving at a constant velocity.

Find the amount of the unknown force.

a)

15 N

b)

30 N

c)

more than 30 N

d)

less than 30 N

149.

This object is accelerating to the right.

Find the amount of the unknown force.

a)

12 N

b)

20 N

c)

more than 20 N

d)

less than 20 N

e)

8 N

150.

A 1500 kg car is traveling at 35 m/s. How much inertia does this car have?

a)

35 m/s

b)

35 kg

c)

1500 kg

d)

4364 kg

151.

According to Newton’s second law of motion, if the total force remains the same but mass increases, then acceleration will

a)

increase

b)

decreases

c)

remain constant

152.

An object is propelled along a straight-line path by a force. If the total force were doubled, its acceleration would

a)

Halve

b)

Double

c)

Remain constant

153.

The force of friction on a sliding object is 10 newtons. The applied force needed to maintain a constant velocity is

a)

Less than 10N

b)

More than 10N

c)

10N

154.

A 10kg block with an initial velocity of 10m/s slides 10m across a horizontal surface with an acceleration of 5m/s2 and comes to rest. The stopping force acting on the block is about

a)

5N

b)

10N

c)

25N

d)

50N

155.

.


A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected, the forced required to keep the puck sliding at constant velocity is

a)

Equal to the weight of the puck

b)

The weight of the puck divided by the mass of the puck

c)

The mass of the puck multiplied by 9.8 m/s

d)

Zero newtons

156.

Mike's car, which weighs 1,000 kg, is out of gas. Mike is trying to push the car to a gas station, and he makes the car go 0.05 m/s2 .Using Newton's Second Law, you can compute how much force Mike is applying to the car (F= M x A) 

a)

50N

b)

100N

c)

5N

157.

F= mass * acceleration

A 20 kg bike accelerates at 10 m/s2. what is the total force acting upon it?

a)

25 Newtons

b)

20 Newtons

c)

200 Newtons

d)

10 Newtons

158.

An object of mass 10 kg is accelerated upward at 2 m/s2. What total force is required?

a)

20 N

b)

2 N

c)

5 N

d)

0 N

159.

When total force is 20 N, mass is 5 kg, what is acceleration? F = ma

a)
25 m/s/s
b)
5 m/s/s
c)
100 m/s/s
d)
4 m/s/s
160.

Football A has a greater mass than football B. Which football will have greater acceleration when both are thrown with the same force in the same direction?

a)

Football A

b)

Football B

c)

They will have the same acceleration

d)

Mass has no effect on acceleration

161.

Jenny applies a 60 N force to a 20 Kg cart, what is the acceleration of the cart if friction can be neglected?

a)

1200 m/s2

b)

0.33 m/s2

c)

20 m/s2

d)

3 m/s2

162.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
163.

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

a)

1457 Joules

b)

22,584 Joules

c)

15 Joules

d)

45,167Joules

164.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill. 
c)
A ball rolling down a hill. 
165.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill 
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall 
d)
d. a piece of coal before it's burned 
166.
What is kinetic energy?
a)
energy of work
b)
energy of motion
c)
energy of gravity
d)
energy of power
167.

The unit in which kinetic energy is measured is 

a)

Newton

b)

Kilogram

c)

Joules

d)

Metres per second

168.
Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.
a)
18 J
b)
36 J
c)
12 J
d)
6 J
169.
How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?
a)
27 J
b)
18 J
c)
9 J
d)
2 J
170.

What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s

a)

676 J

b)

52 J

c)

17J

d)

338 J

171.

What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s

a)

50 J

b)

500 J

c)

250 J

d)

25 J

172.

What is the kinetic energy of a 1.5 kg object moving at a velocity of 100 m/s

a)

112.5 J

b)

7,500,000 J

c)

75 J

d)

7,500 J

173.

What is the kinetic energy of a 25 kg object moving at a velocity of 2.5 m/s

a)

78.125 J

b)

31250 J

c)

781.25 J

d)

78,125 J

174.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

175.

Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.

a)

height and mass

b)

friction and movement

c)

mass and movement

d)

height and friction

176.

You throw a ball into the air as shown in the diagram. At what point does the ball have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

177.

At which position does the child on the swing have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

178.

At which point on the roller coaster is the gravitational potential energy the greatest?

a)

W

b)

X

c)

Y

d)

Z

179.

Which is the correct unit for expressing gravitational potential energy?

a)

Joule

b)

Newton

c)

m/s2

d)

meter

180.

Which of the following is the correct equation for calculating an object's gravitational potential energy?

a)

PE = mgh

b)

PE = mg / h

c)

PE = mg + h

d)

PE = gh

181.

What is the value of the Earth's acceleration due to gravity (g)?

a)

9.8 m/s2

b)

100 m/s2

c)

25 m/s2

d)

3.14 m/s2

182.

Determine the gain in gravitational potential energy when a 4.00 kg block is raised 18.00 m.

g is 9.81m/s2.

ROUND TO THE WHOLE NUMBER.

NO UNITS

(a)  

183.

An owl has a mass of 4.00 kg. It dives to catch a mouse from a height of 20m How much GPE does the owl lose?

g is 9.81m/s2.

ROUND TO THE WHOLE NUMBER.

NO UNITS

(a)  

184.

One of the tallest radio towers is in Fargo, North Dakota. The tower is 629 m tall. If a bird lands on top of the tower with a mas of 0.3kg. What is the birds GPE?

g is 9.81m/s2.

ROUND TO THE WHOLE NUMBER.

NO UNITS

(a)  

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