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Physics Final Exam Review 2021

Total questions: 97

Worksheet time: 4hrs 32mins

Name
Class
Date
1.
As an object travels through the air, its vertical velocity 
a)
changes continuously
b)
remains the same
2.
What is the horizontal acceleration of a projectile?(neglect air resistance)  
a)
0 m/s2
b)
-9.8 m/s2
3.
The more mass an object has, the faster it will fall.
a)
True
b)
False
4.
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
5.
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
6.
What is the difference between centripetal and centrifugal forces?
a)
Centripetal is towards center while centrifugal is away from the center.
b)
Centrifugal is towards center while centripetal is away from the center.
c)
Both are correct
d)
None of the above are correct
7.
Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?
a)
0.25 ms-2
b)
0.5 ms-2
c)
1 ms-2
d)
2 ms-2
8.
What happens to the centripetal force exerted on an object if you triple the velocity?
a)
it increases to 3X
b)
it decreases to 6X
c)
it increases to 6X
d)
it increases to 9X
9.
Centripetal acceleration always points:
a)
in the direction of the object's motion
b)
in the opposite direction of the object's motion
c)
towards the center of the circle
d)
towards the outside of the circle
10.
A test car moves at a constant speed around a circular track.  If the car is 48.2 m from the track's center and has a centripetal acceleration of 8.05 m/s2, what is the car's tangential speed?
a)
19.7 m/s
b)
5.99 m/s
c)
0.17 m/s
d)
388.01 m/s
11.
What is the acceleration of a sock in the dryer that is 0.5 m in diameter if the sock makes one loop every second?
a)
9.87 m/s2
b)
2.67 m/s
c)
1.57 m/s2
d)
3.14 m/s2
12.
A baseball pitcher is warming up as he travels to a game by plane. The plane is flying at 400 km/h  relative to the ground. The pitcher throws the ball at 150 km/h relative to the airplane. What is the ball’s velocity relative to the ground, if the pitcher throws the ball towards the front of the plane? 
a)
250 km/h
b)
350 km/h
c)
450 km/h
d)
550 km/h
13.
A swimmer jumps into a river and swims straight toward the other side at 1.5 km/h due North relative to the water. There is a current in the river of 2.0 km/h due West. What is the swimmer’s velocity relative to the shore?
a)
2.5 km/h & 37o N of W
b)
3.5 km/h & 53o N of E
c)
3.5 km/h & 740 N of W
d)
0.5 km/h & 27o N/W
14.
Changes in our speed, direction  or both are called _________.
a)
gravity
b)
changes
c)
acceleration
d)
deceleration
15.
Determine the motion of the car.
a)
at rest 
b)
moving at constant speed
c)
speeding up
d)
slowing down
16.
Determine the motion of the car.
a)
at rest 
b)
constant velocity 
c)
speeding up
d)
slowing down
17.
A car accelerates from a standstill to 70 m/s in 10 seconds.  What is the acceleration?
a)
0.7m/s2
b)
7m/s2
c)
14m/s2
d)
none of the above
18.
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
19.
The SI unit for acceleration is
a)
mph
b)
ft/sec2
c)
m/s2
20.

An object that has momentum can be described as _________

a)

a) changing its velocity

b)

b) moving fast

c)

c) resisting changes in its state of motion

d)

d) having its mass in motion

e)

e) encountering a net force

21.

Which one of these objects has the greater amount of momentum?

a)

A turtle that slowly crosses a road

b)

A parked car

c)

A stop sign

22.

During a collision. an object experiences an impulse. How can this impulse be calculated?

a)

Multiplying force by time

b)

Multiplying mass by velocity

c)

Dividing velocity by time

d)

Multiplying mass by acceleration

23.

When a cannon fires a cannon ball, it recoils backwards. This occurs because of...

a)

Energy in the system is conserved

b)

Energy in the system is increased

c)

Momentum in the system is conserved

d)

Energy in the system is not conserved

24.

A freight car of mass 20,000kg moves along a track at 15 m/s. What is the momentum of the car?

a)

30,000 kg*m/s

b)

3,000 kg*m/s

c)

300,000 kg*m/s

d)

3,000,000 kg*m/s

25.

A 2kg object moving at 5 m/s encounters a 30 N resistive force over a duration of 0.10 seconds. The impulse experienced by this object is _____

a)

0.30 N*s

b)

2 N*s

c)

2.5 N*s

d)

3 N*s

e)

7 N*s

26.

A football player is running north down the field, and has a momentum of 120 kg*m/s. He experience a southward impulse of 200 N*s. What is the final momentum of the player

a)

80 kg*m/s north

b)

80 kg*m/s south

c)

320 kg*m/s north

d)

320 kg*m/s south

27.

A 5kg ball has a momentum of 30 kg*m/s. What is the speed of the ball

a)

150 m/s

b)

35 m/s

c)

6 m/s

d)

5 m/s

28.

Before objects A and B collide, A has a momentum of 26 kg*m/s and B has a momentum of -14 kg*m/s. After the collision, A has a momentum of 8 kg*m/s. B has a momentum of..

a)

2 kg*m/s

b)

4 kg*m/s

c)

6 kg*m/s

d)

12 kg*m/s

e)

32 kg*m/s

29.

In an inelastic collision...

a)

objects bounce off each other

b)

objects stick together

c)

objects stick together for a while then separate

d)

one object flips over the other

30.
What is the unit for velocity?
a)
v
b)
m/s
c)
x
d)
m
31.
A car travels 14 meters in 7 seconds. How fast was the car going?
a)
v = 0.5 m/s
b)
v = 14.7 m/s
c)
v = 21 m/s
d)
v = 2 m/s
32.
A boat is sailing down the river at a constant 5 m/s for 20 seconds. How far did the boat sail?
a)
Δx = 25 m
b)
Δx = 100 m
c)
Δx = 4 m
d)
Δx = 0.25 m 
33.
A car sped up from a stop sign and reached 10 m/s in 3 seconds. What was the car's acceleration?
a)
a = 20 m/s2
b)
a = 3.33 m/s2
c)
a = 10.3 m/s2
d)
a = 20 m/s2
34.
An apple falls from a tree. It takes 1.5 seconds to reach the ground. How high did the apple start from?
a)
Δx = 11.25 m
b)
Δx = 7.5 m
c)
Δx = 1.5 m
d)
Δx = 10 m
35.
A popper toy is timed to take 1.5 seconds in the air, how high did the popper go? (use g=10m/s2)
a)
0.75m
b)
11.25m
c)
2.8m
d)
1.125m
36.
A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 
a)
4.20 m
b)
52.5 m
c)
105 m
d)
158 m
37.
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
38.
Which form of energy does the flowing water possess?
a)
a. gravitational energy
b)
b. potential energy
c)
c. electrical energy
d)
d. kinetic energy
39.
Energy causes ___________ to occur.
a)
change
b)
motion
c)
age
40.
The type of energy that moves objects is...
a)
Thermal Energy
b)
Sound Energy
c)
Mechanical Energy
41.
The type of energy transmitted through space in the form of electromagnetic waves is...
a)
thermal
b)
sound
c)
electromagnetic
42.
All forms of energy can be described as which two types of energy?
a)
mechanical and kinetic
b)
sound and thermal
c)
kinetic and potential
43.
What is the ability to do work?
a)
Energy
b)
Kinetic energy
c)
Potential energy
d)
Energy forms
44.
What is the energy of position or shape that depends on weight and height, also called stored energy?
a)
Energy
b)
Kinetic energy
c)
Potential energy
d)
Sound energy
45.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
46.
A job is done slowly, and an identical job is done quickly.  Both jobs require the same amount of ___, but different amounts of _____
a)
work, energy
b)
power, work
c)
work, power
d)
force, work
47.
Power is:
a)
How fast work is done.
b)
A force applied through a distance.
c)
Work out divided by work in multiplied by 100.
d)
Everything.
48.
Which has greater KE, a car traveling at 30 m/s or a second car that is 1/2 as massive, but traveling at 60 m/s?
a)
car 1
b)
car 2
c)
both have the same KE
49.
Which is an example of Newton's 1st Law?
a)
It is harder to push a 100 kg man in a wheelchair than a 20 kg child.
b)
A paintball gun is fired - the gun pushes on the paintball and the paintball pushes back on the gun.
c)
A cup of coffee sits on a table without moving.
50.
Which is an example of Newton's 2nd Law?
a)
It is harder to push a 100 kg man in a wheelchair than a 20 kg child.
b)
A paintball gun is fired - the gun pushes on the paintball and the paintball pushes back on the gun.
c)
A cup of coffee sits on a table without moving.
51.
Which is an example of Newton's 3rd Law?
a)
It is harder to push a 100 kg man in a wheelchair than a 20 kg child.
b)
A paintball gun is fired - the gun pushes on the paintball and the paintball pushes back on the gun.
c)
A cup of coffee sits on a table without moving.
52.
Define inertia.
a)
A force that pulls every mass toward every other mass.
b)
The property of a body to resist changing its state of motion.
c)
When an object has a net force of zero acting on it.
d)
The force created by gravity on objects.
53.
A force that pulls every mass toward every other mass is...
a)
Mass
b)
Weight
c)
Inertia
d)
Gravity
54.
A 5,000 kg car is pulled with a net force of 10,000 N. What is the acceleration? a=F/m
a)
0.5 m/s2
b)
2 m/s2
c)
15,000 m/s2
d)
50,000 m/s2
55.
3 people are playing tug-of-war. Person 1 is pulling to the left with 1000N. Person 2 and 3 are pulling with the same force to the right. If the rope is not moving, what is the net force?
a)
0 N
b)
500 N right
c)
500 N left
d)
1000 N right
56.
Calculate the weight of a 10 kg rock on the moon (g = 1.6 m/s2). Fwt=mg
a)
10 N
b)
16 N
c)
0.16 N
d)
11.6 N
57.
The total of all forces acting on an object.
a)
Equilibrium
b)
Net Force
c)
Inertia
d)
Air Resistance
58.
A friction-like force that opposes the motion of objects that move through the air.
a)
Air Resistance
b)
Weight
c)
Gravity
d)
Equilibrium
59.
What is the force required to accelerate a 20 kg bowling ball down an alleyway at 5 m/s2? F=ma
a)
4 N
b)
0.25 N
c)
100 N
d)
25 N
60.
If two forces are acting in the same direction you obtain the Net force by
a)
Multiplying
b)
adding
c)
subtracting
d)
dividing
61.
Which has more mass, a kilogram of feathers or a kilogram of iron?
a)
the feathers
b)
the iron
c)
neither, both masses are equal
d)
neither, they don't have any mass
62.
A 10 N force and a 30 N force act on an object in opposite directions.  What is the net force on the object?
a)
40 N
b)
30 N
c)
20 N
d)
10 N
63.
A tow rope pulls a 1450 kg truck, giving it an acceleration 1.25 m/s^2. What force does the rope exert?
a)
8690 N
b)
6489 N
c)
1813 N
d)
810 N
64.
What is the average velocity from 0-5 seconds?
a)
25 m/s away
b)
5 m/s away
c)
1 m/s away
d)
15 m/s away
65.
What is the displacement from 0-5 seconds?
a)
25 m away
b)
5 m away 
c)
6 m away
d)
15 m away
66.
A car starts 2 mi east of the school and  travels with a velocity of 25 mi/hr east for 3 hours. Where does it end up?
a)
75 mi east
b)
77 mi east
c)
73 mi east
d)
73 mi west
67.
The distance-time graphs shown represent the motion of a car. Which of the following graphs represents the car at constant, positive velocity?
a)
graph A
b)
graph B
c)
graph C
d)
graph D
68.
How many times does this object STOP moving?
a)
None
b)
Once
c)
Twice
d)
Three times
69.

A sled is at rest on a slope, held by a rope attached to a pole, as shown. Which forces should be shown on a Free Body Diagram for the sled?

a)

gravity and the tension in the rope

b)

gravity, the tension in the rope, and the normal force

c)

gravity only

d)

gravity, the tension in the rope, the normal force, and the net force

70.

A skier slides down a frictionless hill with an acceleration of 2.04 m/s2. What angle does the hill make with the horizontal?

a)

78.0°

b)

30.0°

c)

12.0°

d)

6.0°

71.

A child wearing a slippery snowsuit is sitting on a sled such that the coefficient of static friction between the suit and the sled is 0.112. What is the maximum acceleration possible for the sled before the child slips off?

a)

9.80 m/s2

b)

8.70 m/s2

c)

1.10 m/s2

d)

0 m/s2

72.

A road is banked such that cars can go around the curve even if it is icy and friction is essentially zero. What forces belong on a Free Body Diagram for a car under these conditions?

a)

gravity, normal

b)

gravity only

c)

normal only

d)

gravity, normal, centripetal

73.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
74.

The diagram above shows the forces acting on a box. If the box is 4 kg, what is its acceleration?

a)

4 m/s2, left

b)

4 m/s2, right

c)

3 m/s2, left

d)

3 m/s2, right

75.

A net force of 9.0 N accelerates a wagon at 3.0 m/s2. What net force would be required to accelerate the same wagon at 9.0 m/s2.

a)

27 N

b)

81 N

c)

15 N

d)

3 N

76.

You push a 80-kg sofa to move it to a different location in the room. It takes a force of 140 N to start the sofa moving. What is the coefficient of static friction between the sofa and the carpet?

a)

0.175

b)

1.75

c)

0.75

d)

0.275

77.

The resultant between 2 vectors can be found by placing the vectors

a)

tail to tail.

b)

tip to tip.

c)

tip to midpoint.

d)

tip to tail.

78.

When adding two vectors that are perpendicular, it is best to use the____________.

a)

Pythagorean theorem

b)

law of cosines

c)

law of sines

d)

free-body diagram

79.

A box with a mass of 10kg is at rest on a table. The normal force acting on the box is_____.

a)

989 N downward

b)

9.8N upward

c)

10kg upward

d)

98N upward

80.

A sofa is at rest on the floor. The mass of the sofa is 50 kg and the coefficient of static friction between the sofa and the floor is 0.01. The maximum force of static friction is approximately

a)

4.9N

b)

49N

c)

500N

d)

5000N

81.

The equilibrant of a force directed 45owest of north has the direction

a)

45o west of north

b)

45o south of east

c)

45o east of north

d)

45o west of south

82.

A ship at sea is due into a port 400.0km due south in two days. However, a severe storm comes in and blows it 300.0km due east from its original position. How far is the ship from its destination? In what direction must it travel to reach its destination? (1dp)

a)

500 Km 53.1o SW

b)

500 Km 36.9o SW

c)

700 Km 45o NE

d)

700 Km 45o SW

83.
How many significant figures does the following number have: 100.00210
a)
7
b)
5
c)
10
d)
8
84.
Determine the number of Significant Figures in 10-L.
a)
4
b)
3
c)
2
d)
1
85.
How many sig figs are there?
0.000008
a)
1
b)
2
c)
6
d)
7
86.
Which metric unit would be used to measure the weight of a peanut?
a)
kilogram
b)
gram
c)
ounce
d)
millilter
87.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
88.
Which of the following is the answer for the problem with the correct number of significant digits?
0.0025 x 1.41 = 0.003525
a)
0.00
b)
0.004
c)
0.00353
d)
0.0035
89.

The variable that responds to the changes in the other variable is the ___ variable.

a)

Independent

b)

Dependent

c)

Constant

d)

Control

90.

The variable that the experimenter (or you) control is the ___ variable.

a)

Independent

b)

Dependent

c)

Constant

d)

Control

91.

What type of graph is best used to represent trends in data?

a)

Line

b)

Circle

c)

Bar

d)

Pictograph

92.
Convert from meters to cm:  9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
93.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
94.
How would you write 0.0005 in scientific notation?
a)
50 x 105
b)
5 x 104
c)
5 x 103
d)
.5 x 103
95.
Theory or Law???  Is a well-tested EXPLANATION for a wide range of observations and experimental results.
a)
Law
b)
Theory
96.
What is the dependent variable in the following experiment? Plants grow more when exposed to classical music
a)
Exposure to classical music
b)
Normal exposure to noises with no music
c)
height of plant
97.

Complete the statement:

5.0 cm/min = ______ m/day

(100 cm = 1 m)

a)

72

b)

840

c)

7.2

d)

5,040,000