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PS Pre-TEST Unit 4- Force & Motion

Total questions: 92

Worksheet time: 3hrs 4mins

Name
Class
Date
1.
Which car is accelerating?
a)
A car that is not moving
b)

A  car that rounds a curve at a constant speed

c)
A car traveling   at a constant speed 
d)
A car that has a set speed of 60mph
2.
How fast is the car traveling at 30 seconds?
a)
5m/s
b)
10m/s
c)
20m/s
d)
30m/s
3.
Acceleration due to gravity is ...
a)
15m/s2
b)
9.8m/s2
c)
0
d)
Depends on the object
4.
Forces always act in equal and opposite pairs.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
5.
An object at rest or moving at a constant speed in a straight path will continue to do so until a net force acts upon it.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
6.
A(n) __________ is a push or pull.
a)
newton
b)
acceleration
c)
force
d)
momentum
7.
An object acted upon by a net force will accelerate in the direction of the force according to the equation 
Acceleration = net force/mass
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
8.
The force of ____ exists between any two objects that have mass.
a)
gravity
b)
acceleration
c)
weight
d)
free fall
9.

What would you be measuring if you had the object's speed and direction

a)

momentum

b)

velocity

c)

force

d)

weight

10.

The force of gravity is dependent on an object's ________.

a)

mass

b)

volume

c)

temperature

d)

speed

11.

If you multiple velocity by mass you will get the object's .....

a)

acceleration

b)

force

c)

speed

d)

momentum

12.

Newton's second law states that greater the mass the more _________ will be needed to move the object.

a)

power

b)

force

c)

distance

d)

speed

13.

If a speed boat is traveling at a constant rate and hits a large wave, how would the boat respond?

a)

It would keep going straight

b)

it would go backward a bit

c)

It would go forward a bit

d)

It would stop

14.
If these teams 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.
15.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
16.
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
17.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
18.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
19.
Which one is balanced?
a)
top
b)
bottom
c)
both
20.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
21.

What would you be measuring if you had the object's speed and direction

a)

momentum

b)

velocity

c)

force

d)

weight

22.

What is the change in velocity divided by time?

a)

momentum

b)

force

c)

speed

d)

acceleration

23.
the tendency of an object to resist a change in its motion
a)
acceleration
b)
inertia
c)
mass
d)
frame of reference
24.
The sum of all forces acting on an object and direction
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
25.
Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
26.
Are forces balanced or unbalanced when a marble speeds up rolling down a ramp?
a)
Balanced
b)
Unbalanced
27.
Ted is trying to move a fridge through his house, he gets stuck on a carpet and even though he is pushing the fridge, it is not moving. What force is acting against him?
a)
gravity
b)
friction
c)
air
d)
mass
28.
Forces have both _________ and direction.
a)
Magnitude
b)
Gravity
c)
Speed
d)
Height
29.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
30.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
31.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force
32.

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)
33.

A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor.

a)
b)
c)
d)
34.

A hockey puck glides to the right across the ice at a constant speed.

a)
b)
c)
d)
35.

A downward-moving skydiver who has just opened the parachute is slowing down.

a)
b)
c)
d)
36.

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

37.

In a force diagram the size/length of the arrow tells you this about the force:

a)

the strength of the force

b)

the distance of the force

c)

the direction of the force

38.
A Newton is a unit of...
a)
force
b)
inertia
c)
acceleration
d)
velocity
39.

What is the net force?

a)

40 N left

b)

0 N Balanced

c)

400 N right

d)

40 N right

40.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

41.

When determining the NET force on an object you should (TWO correct answers):

a)

subtract forces in opposite directions

b)

add forces in the same direction

c)

subtract forces in the same direction

d)

add forces in the opposite direction

e)

multiply the forces in the same direction

42.

This diagram can be used to indicate which of the following? (TWO correct answers)

a)

a object at rest

b)

an object moving at a constant velocity (speed)

c)

an object accelerating

d)

(Trick question -- there is only one correct answer)

e)

an object decelerating

43.

What is Newton's 2nd Law?

a)

Every action has an equal and opposite reaction

b)

An object at rest stays at rest, an object in motion stays in motion.

c)

F = ma

d)

Friction

44.

True or False. Acceleration of an object is directly proportional to the net force acting on it

a)

True

b)

False

45.

What unit do we measure force in?

a)

Kilometer/hr

b)

Joules

c)

Seconds

d)

Newtons

46.
If you increase the mass on an object, its acceleration
a)
decreases
b)
stays the same
c)
also increases
d)
stops
47.
A claim is ______________________________.
a)
a kind of shellfish often used in chowder. 
b)
a fact.
c)
a statement or conclusion that answers the original question or problem
d)
a bad thing to make about something.
48.
Evidence is ___________________
a)
A statement or conclusion that answers a question
b)
Scientific data that supports the claim
c)
A justification that connects the claim to the evidence
d)
Not vital when using an argument
49.
Reasoning is __________________.
a)
A statement of conclusion that answers the original question/problem
b)
Scientific data that supports the claim
c)
A justification that connects the evidence to the claim
d)
Empirical Evidence
50.
Air is matter. We found that the weight of the ball increases by .5lbs each time we pumped more air into it. This shows that air has weight, one of the characteristics of matter.
Which sentence is the evidence?
a)
Air is matter.
b)
We found that the weight of the ball increases by .5lbs each time we pumped more air into it.
c)
This shows that air has weight, one of the characteristics of matter.
51.
"Sleepy students are more likely to be tardy, absent, inattentive in the morning and less able to learn" is an example of:
a)
Claim
b)
Reasoning
c)
Evidence
d)
None of these
52.
"Two out of three high school students fail to get enough sleep" is an example of:
a)
Claim
b)
Evidence
53.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

5N, Right

b)

5N, Left

c)

9N, Right

d)

9N, Left

54.

What is the Net Force and the direction of the object's movement as a result of the net force?

a)

3N, Right

b)

3N, Left

c)

6N, Left

d)

6N, Right

55.
A deer running 15 meters per second due west.Vector or scalar?
a)
Scalar
b)
Vector
56.
Wind blowing at 20 mph.Vector or scalar?
a)
Scalar
b)
Vector
57.

The SI unit for acceleration is

a)

mph

b)

ft/sec

c)

m/s2

d)

m/s

58.
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  
59.

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

60.

Which of the following has the greatest momentum?

a)

a scurrying cockroach

b)

a parked semi-truck

c)

more information is needed

61.
Which of the following has more momentum? 
a)
a moving SUV
b)
a moving semi-truck
c)
more information is needed
62.

Which of the following is NOT a unit of momentum?

a)

kg*m/s

b)

N*s

c)

kg*mph

d)

kg*m/s2

63.
The recoil speed of a rifle is much less than the exit velocity of a bullet because...
a)
the rifle experiences a smaller force
b)
the rifle experiences a smaller change in momentum
c)
the rifle has a much greater mass
d)
the rifle does not obey the laws of physics
64.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
65.

Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...

a)

Skater 1 experiences a greater change in momentum

b)

Skater 2 experiences a greater change in momentum

c)

Skater 1 has a greater speed than Skater 2

d)

Skater 1 experiences a greater force

66.
What happens to the speed of the wagon as the rain collects inside of it?
a)
it decreases
b)
it remains constant
c)
it increases
67.
Both students experience the same ____
a)
force of impact
b)
time of impact
c)
change in momentum
d)
all of the above
68.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
69.
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
70.
What is the momentum of a charging rhino?
a)
2 × 10² kg⋅m/s
b)
3 × 10² kg⋅m/s
c)
2 × 10⁴ kg⋅m/s
d)
3 × 10⁴ kg⋅m/s
71.
Which object has the greatest momentum?
a)
Object A
b)
Object B
c)
Object C
d)
cannot be determined
72.

Find the momentum of a 3.0 kg mass when it is stopped.

a)

0 kg*m/s

b)

need to know the velocity

c)

3.0 kg*m/s

d)

9.8 kg * m/s

73.

a bat strikes a 0.05 kg baseball so that its velocity changes by +30 m/s in 0.1 s. With what average force was the ball struck?

a)

+15 N

b)

-15 N

c)

+300 N

d)

-300 N

e)

+150 N

74.
When two objects collide, the Momentumbefore is ____________ the Momentumafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
75.
Scott drives a Jeep 12 km east, then 4 km north, then finally 3 km west. He traveled a total distance of:
a)
5 km
b)
10 km
c)
13 km
d)
19 km
76.
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
77.
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.
78.
Ronaldo runs across a soccer field, moving 10 meters north, then 8 meters west. His displacement would be:
a)
10.2 m, NW
b)
12.8 m, NW
c)
15.4 m, NW
d)
18.0 m, NW
79.
During a game of dodgeball, Marina runs 2.45 meters forward to grab a dodgeball, then runs 1.25 meters backward to avoid a opponent's dodgeball. Her displacement would be:
a)
3.7 meters backwards
b)
1.2 meters backwards
c)
3.7 meters forwards
d)
1.2 meters forwards
80.

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

81.

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

82.

A baseball player hits a ball with 400 N of force. How much force does the ball exert on the bat?

a)

300

b)

400

c)

500

d)

Not enough info to tell

83.

Your friend pushes you for making fun of him/her. What is the reaction force?

a)

You pushing back on your friend

b)

You pushing on the ground

c)

There is no reaction force

d)

Your friend pushing on the ground

84.
The law of universal gravitation is credited to whom? 
a)
Einstein 
b)
Galileo
c)
Darwin
d)
Newton 
85.
Two factors effecting the magnitude of force of gravity between 2 objects are...
a)
weight and mass 
b)
distance and weight 
c)
mass and matter 
d)
mass and distance 
86.
Gravity attracts all objects towards one another. 
a)
True
b)
False 
87.
As distance between objects increases the pull of gravity...
a)
increases 
b)
decreases 
c)
Stays the same 
88.
What Law of Motion states, "For every action there is an equal and opposite reaction?"
a)
1st Law of Motion
b)
2nd Law of Motion
c)
3rd Law of Motion
d)
The 19th Amendment
89.
Einstein described the nature of gravity using what term?
a)
trampoline of space
b)
fabric of space-time
c)
fabric of gravity
d)
radioactivity
90.
Which Law of Motion is also known as Law of Inertia?
a)
1st Law of Motion
b)
2nd Law of Motion
c)
3rd Law of Motion
d)
Law of Robotics
91.
Which Law of Motion can be shorthanded F=ma? 
a)
1st Law of Motion
b)
2nd Law of Motion
c)
3rd Law of Motion
d)
Law of Liberty
92.
What ONE TERM best describes this: 60 mph west
a)
velocity
b)
speed
c)
genius
d)
gravity

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