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WorksheetsTest #2 Review
Total questions: 119
Worksheet time: 3hrs 34mins
Name
Class
Date
1.
The more mass an object has, the faster it will fall.
a)
True
b)
False
2.
If I throw a crayon straight up at 12m/s, how fast is its speed when i catch it at the same height?
a)
-6 m/s
b)
-12 m/s
c)
-18 m/s
d)
-24 m/s
3.
What is the horizontal acceleration of a projectile?
a)
0 m/s2
b)
-9.8 m/s2
4.
Consider drops of water leaking from a water faucet. As the drops fall they
a)
remain at a relatively fixed distance from each other
b)
get farther apart
c)
get closer together
5.
If you throw a baseball straight up, what is its velocity at the highest point?
a)
9.8 m/s2
b)
9.8 m/s
c)
0 m/s2
d)
0 m/s
6.
Two objects - one with mass m and the other with mass 2m - are released from rest at the same height. Which object hits the ground first?
a)
mass m
b)
mass 2m
c)
both objects hit the ground at the same time
d)
unable to determine with information given
7.
Which of the following would NOT be considered a projectile?
a)
a cannonball thrown straight up
b)
a cannon ball rolling down a slope
c)
a cannonball rolling off a table
d)
a cannonball thrown in the air
8.
The horizontal component of a projectile's velocity is independent of...
a)
it's range
b)
time
c)
the vertical component
d)
none of these
9.
The U-shaped path a projectile follows.
a)
Vertical
b)
Horizontal
c)
Parabolic
d)
Drag
10.
A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?
a)
14.3 m
b)
30.55 m
c)
65 m
d)
43.55 m
11.
A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground?
a)
0.52 s
b)
0.27 s
c)
0.13 s
d)
0.36 s
12.
A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How far did the bullet travel horizontally when it hit the ground?
a)
252.04 m
b)
489.32 m
c)
126.02 m
d)
346.00 m
13.
A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How long until the ball reaches the ground?
a)
0.45 s
b)
0.67 s
c)
0.22 s
d)
0.47 s
14.
If you drop a banana, how fast is it going after 2 seconds?
a)
4.9m/s
b)
9.8m/s
c)
19.6m/s
d)
29.4m/s
15.
If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?
a)
Shot Bullet
b)
Dropped Bullet
c)
Hit at Same Time
16.
If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which has a larger vertical speed when they hit the ground?
a)
Shot Bullet
b)
Dropped Bullet
c)
Same for Both
17.
Which angle will produce the greatest height (in the absence of air resistance)?
a)
0 degrees
b)
45 degrees
c)
90 degrees
d)
none of these
18.
An object is projected horizontally from a cliff. The time it takes to hit the ground is
a)
more than if it was just dropped
b)
less than if it was just dropped
c)
the same amount of time than if it was just dropped
d)
impossible to determine
19.
What angle will give you the greatest range in the x direction?
a)
30 degrees
b)
45 degrees
c)
60 degrees
d)
90 degrees
20.
What can you say about motion in the x and y direction?
a)
x is dependent on y
b)
y is dependent on x
c)
They are dependent on each other.
d)
They are independent of each other.
21.
What force acts in the y direction that causes an object to travel in a parabolic arc?
a)
Friction
b)
Gravity
c)
Tension
d)
No force acting.
22.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
23.
Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object will hit the ground first?
a)
A
b)
B
c)
Both objects hit the ground at the same time
d)
unable to determine with the given information
24.
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
25.
Cart A is pulled with a 2 Newton force for 2 seconds, and Cart B is pulled with a 1 Newton force for 3 seconds. Which cart experiences the greatest impulse?
a)
Cart B
b)
Cart A
c)
they are the same
26.
The definition of momentum is
a)
Mass in Motion
b)
The size of an object
c)
The velocity of an object
d)
A comparison between two objects
27.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
28.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
29.
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
30.
A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?
a)
14.4 kg
b)
1400 kg
c)
144 kg
d)
360 kg
31.
A 2 kg cart has a momentum of 10 kg m/s. What is its velocity?
a)
22 m/s
b)
.2 m/s
c)
5.0 m/s
d)
20 m/s
32.
An object with a mass of 2000 kg at rest has what momentum?
a)
2000 kg m/sec
b)
0 kg m/sec
c)
2000 kg
d)
2000 m/sec
33.
A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision. What is the velocity of the second ball after the collision?
a)
5 m/s
b)
2.5 m/s
c)
10 m/s
d)
7.5 m/s
34.
A .030 kg bullet is fired from a gun with a speed of 350 m/s. If the gun has a mass of 0.9 kg, What is the recoil speed of the gun?
a)
11.7 m/s
b)
9.0 m/s
c)
10.5 m/s
d)
10 m/s
35.
A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two bobs stick together, what will the velocity of the two blobs move at?
a)
3.57 m/s
b)
3.2 m/s
c)
10.0 m/s
d)
9.0 m/s
36.
The impulse is ______ the change in momentum
a)
Greater than
b)
Equal to
c)
less than
d)
always double
37.
When the speed of an object is doubled, its momentum
a)
remains unchanged in accord with the conservation of momentum.
b)
doubles
c)
quadruples
d)
decreases
38.
A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.
Calculate the impulse on the ball.
Calculate the impulse on the ball.
a)
1 N*s
b)
6 N*s
c)
33.3 N*s
d)
None of these
39.
How can a tennis ball and a bowling ball have the same momentum?
a)
have the same speed
b)
have different speeds
c)
one is moving backwards
d)
they can't
40.
In this type of collision, objects tend to "stick" together.
a)
elastic
b)
inelastic
c)
They "stick" together in both types of collisions
41.
A big fish swims upon and swallows a small fish at rest. After lunch, the big fish has less
a)
momentum
b)
velocity
c)
mass
42.
The units for Impulse are
a)
N/s
b)
N*s
c)
N
d)
m/s
43.
Momentum is conserved in this type of collision
a)
elastic
b)
inelastic
c)
momentum is conserved in both types of collisions
44.
T/F: A big truck will always have more momentum than a small car.
a)
True
b)
False
45.
The purpose of crumble zones on a car is to
a)
decrease time of impact.
b)
increase force of impact.
c)
increase the time of impact.
d)
decrease the impulse during impact.
46.
An egg is thrown at a wall and at a bed sheet. The force of impact will be
a)
Greater against the wall
b)
Greater against the sheet
c)
Force is equal
47.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than
b)
less than
c)
equal to
d)
unrelated to
48.
Two objects of the same mass collide with each other. The second object is at rest and the first is moving at 5 m/s North before the collision. After the collision, the first mass is at rest and the second mass continues at 5 m/s North.
The type of collision represented by these two masses is
The type of collision represented by these two masses is
a)
Inelastic
b)
Explosive
c)
Elastic
49.
Sally runs and jumps off of a diving board and lands on a tube (she stays in the tube). The collision between Sally and the tube is
a)
Elastic
b)
Explosive
c)
Inelastic
d)
Completely absurd
50.
Heather noticed a collision outside the coffee shop where two cars collided and stuck together. What type of collision did she observe?
a)
Elastic
b)
Explosive
c)
Inelastic
51.
While playing pool, Emma notices that the pool balls bounce apart. What type of collision is this?
a)
Elastic
b)
Inelastic
c)
Explosive
d)
Force
52.
Softer landings tend to
a)
increase impact force
b)
increase force
c)
increase collision time
d)
increase change in momentum
53.
The difference between a car hitting a wall vs. a car hitting a hay stack is
a)
the Impulse on the car hitting the wall is greater
b)
the change in momentum of the car hitting the wall is greater
c)
the force on the car hitting the hay stack is greater
d)
the collision time of the car hitting the hay stack is greater
54.
The impulse-momentum theorem states that
a)
the impulse on an object is equal to the change in momentum it causes
b)
the force on a moving object is equal to the magnitude of the impulse.
c)
the impulse on an object is greater than the change in momentum it causes
d)
the impulse on an object is less than the change in momentum it causes
55.
A(n) _________________ causes and is equal to a change in momentum
a)
impulse
b)
force
c)
joule
d)
watt
56.
The law of conservation of momentum states that,
a)
p before is less than p after
b)
p before is the same as p after
c)
p before is more than p after
57.
A bug flies into the windshield of a car going the opposite way. Which of the following are true.
a)
the force of impact is the same for both
b)
the impulse is the same for both
c)
the acceleration of the bug is larger than the truck
d)
A, B, and C are all true
58.
The purpose of air bags on a car is to
a)
decrease time of impact.
b)
increase force of impact.
c)
increase the time of impact.
d)
decrease the impulse during impact.
59.
A cannon fires a cannonball. Which object experiences more impulse?
a)
Cannon
b)
Cannonball
c)
Neither they both experience the same impulse
60.
A cannon fires a cannonball. Which object experiences more change in velocity?
a)
Cannon
b)
Cannonball
c)
Neither they both experience the same change in velocity
61.
Impulses are greater when bouncing takes place because
a)
impulse is needed to make the object stop and go.
b)
impulse is needed to make the object stop.
c)
bouncing has no impact on impulses.
62.
A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?
a)
8 m/s
b)
32 m/s
c)
0.125 m/s
d)
18 m/s
63.
A boy kicks a football with a force of 20 N in 0.3 s.
Calculate the impulse on the ball.
Calculate the impulse on the ball.
a)
1 N.s
b)
6 N.s
c)
66 N.s
d)
None of these
64.
When the speed of an object is doubled, its momentum __________.
a)
remains unchanged
b)
doubles
c)
quadruples
d)
decreases
65.
If the impulse of a boxer hitting another boxer stays the same but the time of contact doubles, how much would the new force be?
a)
1/2 as much
b)
1/4 as much
c)
2x more
d)
4x more
66.
You can use an impulse to stop an egg without breaking it by applying a
a)
small force over a longer time
b)
small force over a shorter time
c)
large force over a longer time
d)
large force over a shorter time
67.
A club hit a golf ball with 1500 N of force and is contact with it for 0.5 seconds. Find the impulse on the ball.
a)
750 N s
b)
3000 N s
c)
1500 N s
d)
300 N s
68.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
69.
An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?
a)
slowing motion in a straight line
b)
accelerating motion in a straight line
c)
constant motion in a straight line
d)
constant motion in an unpredictable direction
70.
As the acceleration of an object increases, what happens to the force of the object?
a)
force increases
b)
force decreases
c)
force remain the same
d)
mass increases
71.
The ____________ acting on an object is equal to the ____________ of that object times its __________.
a)
mass, force, acceleration
b)
acceleration, mass, force
c)
force, acceleration, mass
d)
acceleration, force, mass
72.
When a heavy football player and a light one run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
there is no such thing as force
73.
Newton's third law is the law of __________________.
a)
action and reaction
b)
inertia
c)
acceleration
d)
science rocks
74.
When you hold an apple above your head, how many force pairs act on the apple?
a)
1
b)
2
c)
3
d)
4
75.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
76.
A book rests on a table. The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec2
a)
The table presses back up on the book with an equal and opposite force of 20 newtons.
b)
The table presses back up on the book with a force greater than 20 newtons.
c)
The table and the book together are accelerating downwards at 9.8 m/sec2
d)
The inertia of the book holds it up
77.
According to Newton's 3rd Law, reactions always go in the ___ direction of the action.
a)
same
b)
opposite
78.
What happens when two objects exert a force on each other?
a)
One remains still while the other one moves in the same direction.
b)
They hit each other with the same force in opposite directions.
c)
They hit each other with unequal force in opposite directions.
d)
They hit each other with the same force in the same direction
79.
A push or pull that causes a change in motion
a)
Friction
b)
Gravity
c)
Force
d)
Mass
80.
The amount of matter in an object
a)
weight
b)
force
c)
gravity
d)
mass
81.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
82.
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.
a)
20N
b)
40N
c)
10N
d)
70N
83.
45 kg
a)
mass
b)
weight
84.
850 N
a)
mass
b)
weight
85.
unit for mass (in all physics equations)
a)
kg
b)
N
c)
pound
d)
g
86.
unit for weight (in all physics equations)
a)
N
b)
kg
c)
pound
87.
Which variable is constant?
a)
mass
b)
weight
88.
A football player is pushing a heavy sled for workouts. What type of friction must he overcome in order to start the sled?
a)
Rolling Friction
b)
Static Friction
c)
Fluid Friction
d)
Sliding Friction?
89.
You are pushing a refrigerator with a force of 300N. Friction is acting against you with a force of 200N. What is the net force?
a)
500N
b)
600N
c)
1.5N
d)
100N
90.
What happens to the object when the forces are not balanced?
a)
Accelerates
b)
Stays
c)
Nothing
d)
None of the above
91.
Michael hit the golfball at an acceleration of 31 m/s2. The force he used was measured to be 15 N. What mass does the ball have?
a)
0.48 N
b)
48 kg
c)
48 N
d)
0.48 kg
92.
The mass of a wagon is 45 kg. The wagon accelerates at 0.85 m/s2 . What is the force?
a)
38.25 Kg
b)
38.25 N
c)
3.825 N
d)
3.825 Kg
93.
Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?
a)
20 m/s2
b)
2 m/s2
c)
0.5 m/s2
d)
120 N
94.
An evil ewok threw a rock a force of 24.6N and an acceleration of 6m/s2. at an innocent stromtrooper who was trying to help a few rebels. What was it’s mass?
a)
4Kg
b)
41kg
c)
4.1kg
d)
46kg
95.
A force of 90N is applied to each cart below, which one will accelerate the fastest?
a)
Cart 1
b)
Cart 2
c)
Cart 3
d)
Cart 4
96.
When a heavy football player and a light one run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
there is no such thing as force
97.
When a large truck pushes a small car with a given force, the small car is applying an equal and opposite force on the truck.
a)
True
b)
False
98.
What is the relationship between a change in object’s acceleration and a change in its mass?
a)
They are directly proportional
b)
They are inversely proportional
c)
Acceleration doesn't depend on mass at all.
99.
Suppose a force is moving a cart. If suddenly a load is dumped into the cart so that the cart’s mass doubles, what happens to the cart’s acceleration? (a=F/m)
a)
it quadruples
b)
it doubles
c)
it halves
d)
it quarters
100.
A tennis ball and a solid steel ball the same size are dropped at the same time. In the absence of air resistance, which ball has the greater acceleration?
a)
The tennis ball
b)
The steel ball
c)
Nonsense! They both have the same acceleration
101.
A tennis ball and a solid steel ball the same size are dropped at the same time. Which ball has the greater force acting on it?
a)
The tennis ball
b)
The steel ball
c)
Nonsense! They both have the same acceleration
102.
Which of the following would exert the most pressure on the ground?
a)
A women standing in running shoes
b)
A woman standing in small high heel shoes
c)
A women on skis
103.
A free falling objects falls under the influence of
a)
force of air
b)
force of gravity
c)
force of resistance
d)
force of
104.
Terminal velocity is when
a)
Weight is greater than air resistance
b)
Air resistance is greater than weight
c)
weight and air resistance are equal and opposite
d)
Air resistance and drag are the same
105.
When a rocket lifts off, its upward momentum is matched by the downward momentum of
a)
the launch pad.
b)
nothing.
c)
hot gases expelled from rocket.
d)
air pushed out of the way by the rocket.
106.
An object that is in free fall seems to be
a)
not moving.
b)
weightless.
c)
speeded up by air resistance.
d)
slowed by air resistance.
107.
The relationship among mass, force, and acceleration is explained by
a)
the conservation of momentum.
b)
Newton's 1st Law.
c)
Newton's 2nd Law.
d)
Newton's 3rd Law.
108.
When Ronda Rousey got kicked in the face, What is the interaction pair?
a)
The foot and the face
b)
Ronda Rousey and media criticism
c)
The foot and the air flow
d)
Ronda Rousey and the floor
109.
A bus hits a bug and the bug splatters on the windshield, which force is greater?
a)
The Bus
b)
The Bug
c)
They're the same
d)
Gravity acting on the bus
110.
A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
111.
What is not an example of Newton's Third Law?
a)
Two people pushing against each other with the same force and in opposite directions
b)
You have to push a heavy ball harder to move as fast as a smaller one
c)
When you sit on a chair, your body acts as a force on the chair, and the chair acts as another force holding your body up
112.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
direction
direction
113.
In practice A of the figure, What is the magnitude of the resultant displacement?
a)
5 km
b)
8 km
c)
11 km
d)
15 km
114.
Is this a scalar quantity or a vector quantity?
A deer running 15 meters per second due west
A deer running 15 meters per second due west
a)
Scalar
b)
Vector
115.
Which of these is not a vector quantity?
a)
displacement
b)
time
c)
velocity
d)
acceleration
116.
What is the x component of the vector given in the diagram?
a)
77N
b)
92N
c)
120N
d)
60N
117.
What is the y component of the vector given in the diagram?
a)
77N
b)
92N
c)
120N
d)
60N
118.
An arrow is shot at an angle of 35° from horizontal at a velocity of 140 feet per second. What is the ground speed of the arrow?
a)
h = 114.68 fps
b)
h = 140 fps
c)
h = 80.30 fps
d)
h = 105 fps
119.
An airplane traveling north at 220 meters per second encounters a 50.0-meters-per-second crosswind from west to east. What is the actual speed of the airplane?
a)
170 m/s
b)
214 m/s
c)
226 m/s
d)
270 m/s
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