Font size
S
M
L
XL
WorksheetsPhysics QA1 18/19
Total questions: 107
Worksheet time: 3hrs 48mins
Name
Class
Date
1.
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
2.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
3.
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
4.
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
5.
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
6.
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
7.
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
8.
A 0.250 kg cart moving at 0.500 m/s has how much momentum?
a)
0.5 kg*m/s
b)
.125 kg*m/s
c)
12.5 kg*m/s
d)
10 kg*m/s
9.
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
10.
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
11.
The impulse is ______ the change in momentum
a)
Greater than
b)
Equal to
c)
less than
d)
always double
12.
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
13.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
14.
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
15.
The impulse is ______ the change in momentum
a)
Greater than
b)
Equal to
c)
less than
d)
always double
16.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
17.
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
18.
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
19.
The units for Impulse are
a)
N/s
b)
N*s
c)
N
d)
m/s
20.
T/F: A big truck will always have more momentum than a small car.
a)
True
b)
False
21.
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.
22.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than
b)
less than
c)
equal to
d)
unrelated to
23.
A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is jerked quickly. This best demonstrates that
a)
the milk carton has no acceleration.
b)
there is an action-reaction pair of forces.
c)
gravity tends to hold the milk carton secure.
d)
the milk carton has inertia.
24.
A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on each scale is
a)
200 N.
b)
400 N.
c)
800 N.
d)
none of these
25.
A package falls off a truck that is moving at 30 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is A)
a)
zero.
b)
less than 30 m/s but larger than zero.
c)
about 30 m/s.
d)
more than 30 m/s.
26.
9) If one object has twice as much mass as another object, it also has twice as much
a)
inertia.
b)
velocity.
c)
acceleration due to gravity.
d)
volume
27.
A rock weighs 30 N on Earth. A second rock weighs 30 N on the moon. Which of the two rocks has the greater mass?
a)
the one on Earth
b)
the one on the moon
c)
They have the same mass.
d)
not enough information to say
28.
An object is pulled northward by a force of 10 N and at the same time another force of 15 N pulls it southward. The magnitude of the resultant force on the object is
a)
0 N.
b)
5 N.
c)
25 N.
d)
150 N.
29.
An archer shoots an arrow. Consider the action force to be the bowstring against the arrow. The reaction to this force is the
a)
combined weight of the arrow and bowstring.
b)
air resistance against the bow.
c)
friction of the ground against the archer's feet.
d)
arrow's push against the bowstring.
30.
A baseball player bats a ball with a force of 1000 N. The reaction force that the ball exerts against the bat is
a)
less than 1000 N.
b)
more than 1000 N.
c)
1000 N.
d)
impossible to determine.
31.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
32.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
33.
"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
34.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
35.
Any push or pull on an object.
a)
force
b)
velocity
c)
inertia
d)
momentum
36.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
37.
The force of attraction between all matter.
a)
inertia
b)
friction
c)
net force
d)
gravity
38.
A force that opposes motion between a surface in contact with the atmosphere.
a)
air resistance
b)
gravity
c)
momentum
d)
terminal velocity
39.
Which of the following is the same as a Newton?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
40.
Which of the following is the units for acceleration?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
41.
Which of the following is the units for velocity?
a)
kg*m/sec/sec
b)
kg*m/sec
c)
m/sec/sec
d)
m/sec
42.
A Newton is a unit of...
a)
force
b)
inertia
c)
acceleration
d)
velocity
43.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
44.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
45.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. The arrow flying forward is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
46.
A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is it's force?
a)
50 Newtons
b)
5 Newtons
c)
20 Newtons
d)
9.5 Newtons
47.
A cannonball with a mass of 10 kg is flying at an acceleration of 5 m/sec/sec. What is it's force?
a)
50 Newtons
b)
5 Newtons
c)
20 Newtons
d)
9.5 Newtons
48.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
49.
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 accelerate at all.
c)
The boy in red will win.
d)
Both will fall down.
50.
How are velocity and force similar.
a)
both are described by the grams they act in.
b)
both are described by the distance they act in.
c)
both are described by the speed they act in.
d)
both are described by the direction they act in.
51.
Why do spaceships continue to move in outer space even with their engines off?
a)
they have hidden engines
b)
they use solar panels
c)
they were already in motion so they will stay in motion
d)
the space wind pushes them forward
52.
A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is it's force?
a)
50 Newtons
b)
5 Newtons
c)
20 Newtons
d)
9.5 Newtons
53.
The more mass an object has, the faster it will fall.
a)
True
b)
False
54.
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
55.
If you throw a baseball straight up, what is its acceleration at the highest point?
a)
9.8 m/s2
b)
9.8 m/s
c)
0 m/s2
d)
0 m/s
56.
What is the horizontal acceleration of a projectile?
a)
0 m/s2
b)
9.8 m/s2
57.
What is the vertical acceleration of a projectile?
a)
0 m/s2
b)
9.8 m/s2
58.
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
59.
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
60.
As an object travels through the air, its vertical velocity
a)
changes continuously
b)
remains the same
61.
When a ball is projected horizontally, what is its initial vertical velocity?
a)
10
b)
0
c)
not enough information given
62.
An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees. Which one has the greater range? (assume no air resistance)
a)
25 degrees
b)
65 degrees
c)
same for both
63.
An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees. Which one rises to a higher height? (assume no air resistance)
a)
25 degrees
b)
65 degrees
c)
same for both
64.
An object is shot from the ground (at 25 m/s) at 25 degrees and 65 degrees. Which is in the air for longer? (assume no air resistance)
a)
25 degrees
b)
65 degrees
c)
same for both
65.
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
66.
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
67.
Two balls of the same mass begin at a height of 2m. One is released from rest while the other begins with a horizontal velocity of 5m/s. Which object its the ground first?
a)
Ball A
b)
Ball B
c)
Both balls his the ground at the same time
d)
unable to determine with information given
68.
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.
69.
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
70.
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 has the greatest maximum height height?
a)
A
b)
B
c)
Both objects reach the maximum height
d)
unable to determine with the given information
71.
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
72.
A projectile is launched from a height with an initial velocity v0,x. The vf,x represents the final horizontal velocity before impact.
a)
v0,x = vf,x
b)
v0,x < vf,x
c)
v0,x > vf,x
d)
unable to determine
73.
How many sig figs are there?
0.00400
0.00400
a)
1
b)
3
c)
5
d)
6
74.
How many sig figs are there?
9009.00
9009.00
a)
2
b)
4
c)
5
d)
6
75.
How many sig figs are there?
0.0009009090000
0.0009009090000
a)
3
b)
10
c)
14
76.
How many sig figs are there?
4000.
4000.
a)
1
b)
3
c)
4
77.
Find the acceleration required to allow a car to accelerate in a straight line from rest to 30 m/s in 5 seconds.
a)
6 m/s2
b)
150 m/s2
c)
1.2 m/s2
d)
None of these
78.
Which of the following is a scalar quantity?
a)
displacement
b)
force
c)
velocity
d)
speed
79.
Which of the following is not a vector quantity?
a)
acceleration
b)
displacement
c)
velocity
d)
speed
80.
A motorcycle accelerates westward from rest to a speed of 14 m/s for a distance of 30 m. What is the acceleration of the motorcycle?
a)
6.53 m/s2
b)
0.233 m/s2
c)
3.26 m/s2
d)
IDK
81.
In each of the following cases, determine where the car has no acceleration ?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car moving down a ramp
82.
The unit of acceleration is:
a)
m/s2
b)
m/s
c)
m.s2
d)
m/s3
83.
Acceleration only takes place when things speed up.
a)
True
b)
False
84.
Acceleration: is the rate of change in ___________.
a)
speed
b)
distance
c)
velocity
d)
displacement
85.
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
86.
When the gradient of a line on a distance time graph increases what does that mean for the speed of the object
a)
increases
b)
decreases
c)
zero
d)
constant
87.
When the gradient of a line on a distance time graph zero what does that mean for the speed of the object
a)
increase
b)
decrease
c)
zero
d)
constant
88.
When the gradient of a line on a distance time graph decrease what does that mean for the speed of the object
a)
increase
b)
decrease
c)
zero
d)
constant
89.
define uniform acceleration
a)
velocity change at a constant speed
b)
velocity change at a constant rate
c)
velocity change at a constant acceleration
d)
velocity change at a constant displacement
90.
If the velocity of an object is constant, its acceleration have to be .................
a)
constant
b)
zero
c)
increase
d)
decrease
91.
A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?
a)
4.29 m/s3
b)
4.29 m/s2
c)
4.29 m/s1
d)
4.29 m/s
92.
A swimmer increases her speed as she approaches the end of the pool. Her acceleration is...
a)
In the same direction as her motion
b)
In the opposite direction of her motion
c)
At right angles to her motion
d)
Zero
93.
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
94.
A roller coasters accelerates from an initial velocity 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
95.
Acceleration can be classified as _______________
a)
Speeding up
b)
Slowing Down
c)
Changing directions
d)
All of the above
96.
The SI unit for acceleration is
a)
mph
b)
ft/sec2
c)
m/s2
97.
Determine the motion of the car.
a)
at rest
b)
moving at constant speed
c)
speeding up
d)
slowing down
98.
In each of the following cases, determine where the car has no acceleration ?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car turning a curve at a constant speed
99.
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
100.
Acceleration is defined as the CHANGE in
a)
time it takes for one place to move to another place.
b)
velocity of an object.
c)
distance divided by the time interval
d)
velocity divided by the time interval
101.
A value that only has magnitude (a number)
a)
Scalar
b)
Vector
c)
Speed
d)
Velocity
102.
Calculate the average speed (in meter/sec) if a cheetah runs 180 meters in 10 seconds.
a)
198 m/sec
b)
170 m/sec
c)
12 m/sec
d)
18 m/sec
103.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
104.
A description of the speed and direction of an object's motion
a)
Velocity
b)
Speed
c)
Acceleration
d)
Vector
105.
A measurement of how fast an object is moving
a)
Velocity
b)
Speed
c)
Vector
d)
Acceleration
106.
Can be measured in meters per second (m/s)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
107.
A Drake races in the 100 meter dash. It takes him 10 seconds to finish. What is his average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
Reset
