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PS Midterm Review

Total questions: 111

Worksheet time: 2hrs 0mins

Name
Class
Date
1.

What is force in physics?

a)

A power in star wars

b)

A push or pull on an object

c)

A stop on an object

d)

The start of an object

2.

What can force do to an object?

a)

Accelerate an object

b)

Slow down an object

c)

Have the object remain in place

d)

Have the object change shape

e)

All of the above

3.

What is the measure of force?

a)

Newtons

b)

Light years

c)

Inches

d)

Gallons

4.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
5.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
6.

What type of force was at work in the parachute?

a)

elastic spring force

b)

frictional force (air resistance)

c)

magnetic force

d)

gravitational force

7.
a)
Balanced
b)
Unbalanced
8.
a)
Balanced
b)
Unbalanced
9.

___________ is an opposing force that makes objects in motion slow down.

a)

force

b)

speed

c)

friction

d)

mass

10.

The girls in this picture represent ________ forces (or 2 objects in equilibrium). 

a)
kinetic
b)
balanced
c)
unbalanced
d)
chemical
11.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
12.

Which image is an example of a balanced force?

a)

Image 1

(Top Image)

b)

Image 2

(Bottom Image)

13.

Which boy will have an easier time getting down the hill?

a)

Boy A , because he is experiencing less friction than boy B.

b)

Boy B, because he is experiencing more friction than boy A.

14.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
15.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force
16.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
17.
Newton's Third Law States...
a)
Objects in motion stay in motion and objects at rest stay at rest
b)
Force is equal to mass times acceleration
c)
For each action there is an equal and opposite reaction
18.
An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...
a)
Air resistance against the bow
b)
the arrow's push against the bowstring
c)
the grip of the archer's hand on the bow
19.
A player throws a ball. The action force is the player impact on the ball. The reaction force is...
a)
The force of the ball impact on the player
b)
The force of the grip of the ball
c)
The celebration the player is thinking of
20.
A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...
a)
The grip of the player's hands on the ball
b)
the air resistance of the ball
c)
the force of the ball against the bat
21.
A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...
a)
Less than 1, 000 N
b)
1,000 N
c)
More than 1,000 N
22.
A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?
a)
15,000 N
b)
1,000 N
c)
10, 000 N
23.

Newton's Third Law is also known as...

a)

The Law of Inertia

b)

The Law of Acceleration

c)

The Law of Conservation of Momentum (Force Pairs)

24.
What is the reaction force to a foot pushing down on the floor?
a)
The foot going through the floor
b)
The floor pushing back against the foot
c)
The floor breaking to the foot
25.
According to Newton's Third law the strength or magnitude of forces will be...
a)
smaller
b)
equal
c)
larger
26.
According to Newton's third law forces come in pairs?
a)
True
b)
False
27.

A leftward force is applied to a crate to push it across the floor at a constant speed. Which is the correct force diagram?

a)
b)
c)
d)
28.

A hockey puck glides to the right across the ice at a constant speed. What would the force diagram for this look like?

a)
b)
c)
d)
29.

A downward-moving skydiver who has just opened the parachute is slowing down. Which force diagram shows this sitation?

a)
b)
c)
d)
30.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

31.
How much force is needed to accelerate a 3kg skateboard at 5m/s2. 
a)
8N
b)
1.6N
c)
0.6N
d)
15N
32.
Newton's law of motion describes the relationship of force, mass, and acceleration. Write the equation.
a)
M=F/A
b)
F=MA
c)
A= F/M
d)
All of the above
33.

How much force is required to accelerate a 1,800 kg truck at 3 m/s2? (a)   Newtons

34.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
35.

What is the mass of a person who weighs 500N

a)

500kg

b)

50,000kg

c)

51kg

d)

1kg

36.

What is the weight of an object (on the moon) that has a mass of 151kg?

Gravity on the moon= 1.62 m/s/s

a)

91N

b)

93.2N

c)

200N

d)

244.6N

37.

What is the mass of a person on Jupiter (gravity= 26m/s/s) who weighs 45N?

(a)  

38.

Mass is ________. (more than one answer)

a)

the quantity of matter in an object.

b)

the measure of an object's inertia.

c)

equal to the weight of an object.

d)

constant for most objects.

39.

Weight is _________.

a)

the quantity of matter in an object.

b)

the measure of an object's inertia.

c)

the force exerted by gravity on an object's mass.

d)

equal to the mass of an object.

40.

Weight is constant.

a)

True

b)

False

41.

Mass is often constant for a given object.

a)

True

b)

False

42.
A ping-pong ball rolls forward 6 meters, and bounces backward 3 meters. It traveled a total distance of:
a)
9 meters
b)
6 meters
c)
3 meters
d)
0 meters
43.
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.
44.
Which runner had a head start?
a)
A
b)
B
c)
C
45.

from 3rd second to 5th second, the object is

a)

moving at a constant speed

b)

speeding up

c)

not moving

d)

slowing down

46.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
47.
On a distance vs. time graph, the steeper the slope _____
a)
the slower the speed
b)
the faster the speed
c)
less acceleration
d)
greater acceleration
48.

What is happening at E?

a)

Stationary

b)

Accelerating

c)

Fast steady speed; moving away from the starting position

d)

Steady speed; returning to start position

49.
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
50.

What is happening in this graph from point B to C?

a)

The object is going down a hill.

b)

The object is returning to its starting location.

c)

The object is slowing down.

d)

The object is staying still.

51.
The speed of the object is changing during interval:
a)
A-B
b)
B-C
c)
C-D
d)
D-E
52.

From t=1.0 second to t=3.0 seconds, the object is

a)

moving at a constant speed

b)

speeding up

c)

not moving

d)

slowing down

53.

On a position-time graph, the position (distance) is plotted on the ____ axis.

a)

x

b)

y

54.

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

55.
What is the person doing from 5 seconds to 10 seconds?
a)
Walking 
b)
Running
c)
Standing Still 
d)
Walking Fast
56.

When was Marie driving the fastest?

a)

C to D

b)

D to E

c)

E to F

57.

What could account for Marie’s motion at 27 minutes?

a)

She was late so she broke the speed limit

b)

She forgot something at home and ran back to get it

c)

She was stopped at a red light

d)

She was driving across the top of a hill

58.

It usually takes Marie 30 minutes to get to work. Did her trip take...

a)

The average amount of time.

b)

Longer then average amount of time.

c)

Shorter then average amount of time.

59.

How far away is Marie's work from her house?

a)

40 mi

b)

25 mi

c)

20 mi

d)

5 mi

60.

How far did Marie go before she turned around?

a)

20 mi

b)

5 mi

c)

10 mi

d)

25 mi

61.

During what period of time was Marie stopped?

a)

0-5 minutes

b)

5-10 minutes

c)

10-25 minutes

d)

25-30 minutes

62.

What does the slope of a position-time graph represent?

a)

Distance

b)

Displacement

c)

Velocity

d)

Acceleration

63.

What does the slope of a velocity-time graph represent?

a)

Distance

b)

Displacement

c)

Velocity

d)

Acceleration

64.

Calculate the displacement traveled in section B. Hint: Remember the area under a v-t graph = displacement!

a)

150 m

b)

50 m

c)

100 m

d)

200 m

65.

Calculate the displacement traveled in section C. Hint: Remember the area under a v-t graph = displacement and you will need to use TWO shapes!

a)

200 m

b)

100 m

c)

50 m

d)

400 m

66.

The area under a velocity-time graph represents __________.

a)

displacement

b)

velocity

c)

acceleration

d)

length x width

67.

The slope of a velocity-time graph represents __________.

a)

acceleration

b)

displacement

c)

speed

d)

distance

68.

Use the graph above and pick the most accurate description of the object's motion

a)

object is moving at constant speed

b)

object is speeding up

c)

object is at rest

d)

object is slowing down

69.

Use the picture above to choose the most accurate description of the object's motion

a)

object is at rest

b)

object is slowing down

c)

object is moving at a constant speed

d)

object is speeding up

70.

At what time does the object switch directions?

a)

15 minutes

b)

40 minutes

c)

10 minutes

d)

30 minutes

71.

Use the picture to choose the most accurate description of the object's motion

a)

object is moving at constant speed in the positive direction

b)

object is speeding up in the negative direction

c)

object is speeding up in the positive direction

d)

object is slowing down in the negative direction

72.

Which of the following graphs don't show an object moving in the positive direction?

a)
b)
c)
d)
e)
73.

Use the picture above to choose the most accurate description of the object's motion

a)

object is moving with a constant velocity in the negative direction

b)

object is speeding up in the negative direction

c)

object is slowing down in the positive direction

d)

object is moving with a constant velocity in the positive direction

74.

Use the picture above to choose the most accurate description of the object's motion

a)

object is speeding up in the negative direction

b)

object is slowing down in the negative direction

c)

object is moving at constant speed in the negative direction

d)

object slowing down in the positive direction

75.

Which of the following cases would lead to an object slowing down?

a)

positive acceleration, positive velocity

b)

positive acceleration, negative velocity

c)

negative acceleration, positive velocity

d)

negative acceleration, negative velocity

76.

The slope of the velocity-time graph tells us the

a)

acceleration

b)

displacement

c)

velocity

d)

direction of travel

77.

In which of the following situations, is the object accelerating?

a)
b)
c)
d)
78.

Calculate the speed of a dog running through a field if he is covering 23.7 meters in 54 seconds.

a)

0.43 m/s

b)

1,279.8 m/s

c)

1.21 m/s

d)

4.08 m/s

79.

If a runner covers a distance of 347 meters in 134 seconds, what is her speed?

a)

2.59 m/s

b)

46,498 m/s

c)

0.39 m/s

d)

6.78 m/s

80.

It took 3.5 hours to travel by train between two cities going 120 mph. How many miles did you travel?

a)

420 mi

b)

3.5 mi

c)

210 mi

d)

766 mi

81.

How long would it take for a car to travel a distance of 200 kilometers if it is traveling at a speed of 55 km/hr?

a)

3.6 hours

b)

44 hours

c)

12.5 hours

d)

90 hours

82.

A plane traveled for about 2.5 hours at a speed of 1200 km/hr. How many kilometers did it fly?

a)

3,000 km

b)

480 km

c)

310 km

d)

900 km

83.

Mark slams on the brakes after traveling 25 m/s. It takes him 3 seconds to come to a complete stop. What is his acceleration?

a)

8.33 m/s2

b)

-8.33 m/s2

c)

75 m/s2

d)

-75 m/s2

84.

How much time did it take Matthew to slow down to a complete stop, after traveling at 30 m/s. His acceleration is -12 m/s2

a)

2.5 s

b)

360 s

c)

.4 s

d)

-2.5 s

85.

If Anthony was running for 300 s after starting at rest, what was his final velocity if he had an acceleration of 0.05 m/s2

a)

.25 m/s

b)

.01 m/s

c)

100 m/s

d)

15 m/s

86.

Mars’ gravitational force is less than that of Earth’s . If an astronaut drops a hammer and its speed increases from 0 to 15 m/s in 4.04 s, what is the acceleration due to gravity on Mars?

a)

9.8 m/s2

b)

0.269 m/s2

c)

60.6 m/s2

d)

3.71 m/s2

87.
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
88.
A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?
a)
750 seconds
b)
35 seconds
c)
0.3 seconds
d)
3.3 seconds
89.

What does this motion map indicate?

a)

Forward at a constant velocity

b)

Backward at a constant velocity

c)

Forward getting faster

d)

Backward getting faster

e)

Forward slowing down then backwards getting faster.

90.

What does this motion map indicate?

a)

Forward at a constant velocity

b)

Backward at a constant velocity

c)

Forward getting faster

d)

Backward getting faster

e)

Forward slowing down then backwards getting faster.

91.

What does this motion map indicate?

a)

Forward at a constant velocity

b)

Backward slowing down forwards getting faster

c)

Backwards getting faster forwards slowing down

d)

Forwards getting faster backwards slowing down

e)

Forward slowing down then backwards getting faster.

92.

What does this motion map indicate?

a)

Forward at a constant velocity

b)

Backward slowing down forwards getting faster

c)

Backwards getting faster forwards slowing down

d)

Forwards getting faster backwards slowing down

e)

Forward slowing down then backwards getting faster.

93.

What does this motion map indicate?

a)

Forward at a constant velocity

b)

Backward at a constant velocity

c)

Forward slowing down

d)

Forward getting faster

e)

Backwards slowing down

94.

What does this motion map indicate?

a)

Forward at a constant velocity

b)

Backward at a constant velocity

c)

Forward slowing down

d)

Forward getting faster

e)

Backwards slowing down

95.

Which is TRUE?

a)

A is slower than C

b)

B is the fastest

c)

C is slowing down

d)

all are going forward

96.

Which is TRUE if the dots are 2 seconds apart and the scale is in meters?

a)

A has a speed of 2 m/s.

b)

B has a speed of 2 m/s.

c)

A is going in the negative direction

d)

A is moving slower than B

97.

At the beginning of the motion map the object is?

a)

moving at a velocity of 3 km/s

b)

moving at a velocity of 4 km/s

c)

at rest for 1 second

d)

at rest for 3 seconds

98.

Give the y-intercept
a)
(2,0)
b)
(-2,0)
c)
(0,-2)
d)
there is no y-intercept
99.
How would you write the equation with a slope of 2/3 and a y-intercept of -3
a)
y=3/2x+3
b)
y=2/3-3
c)
y=2/3x-3
d)
y=2/3x+3
100.

FIND THE SLOPE

a)

A

b)

B

c)

C

d)

D

101.

FIND THE SLOPE.

a)

A

b)

B

c)

C

d)

D

102.

The metric system units for velocity are

a)

m/s

b)

m/s2

c)

m2/s

d)

m2/s2

103.

The metric system units for acceleration are

a)

m/s

b)

m/s2

c)

m2/s

d)

m2/s2

104.

When an object is traveling at a constant velocity:

a)

the acceleration is 0.

b)

the acceleration is in the same direction as its velocity.

c)

the acceleration is in the opposite direction of its velocity.

d)

the acceleration is perpendicular to the velocity.

105.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
106.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
107.
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
108.
Determine the momentum of 1000-kg car moving southward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s south
d)
10000 kg * m/s south
109.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
110.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
111.
Which object listed below has the greatest momentum?
a)
A 0.05 kg object rolling at 0.2 m/s.
b)
A 0.15 kg object rolling at 2 m/s.
c)
A 0.15 kg object rolling at 1 m/s
d)
A 0.4 kg object rolling at 2 m/s.