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Version 001 – gen physics first semester practice final – gleue – (315192)
This print-out should have 100 questions.
Multiple-choice questions may continue on
the next column or page – find all choices
before answering.
Distance Conversions
001 (part 1 of 3) 10.0 points
Express the length of a 230 yd dash in meters.
Correct answer: 210.312 m.
002 (part 2 of 3) 10.0 points
Express the length of a marathon run of
26 mi 385 yd in meters.
Correct answer: 42186 m.
003 (part 3 of 3) 10.0 points
Express the distance 3273 mi from Seattle,
Washington, to Miami, Florida, in meters.
Correct answer: 5.26626 × 106 m.
Elevator Speed
004 (part 1 of 2) 10.0 points
The elevators in the John Hancock building
in Chicago move 876 ft in 31 s.
What is their speed?
5. 1.518 × 106 km
6. 1.518 × 1010 km
7. None of these
Building a Fence
007 10.0 points
John and Mary Smith plan to put a wooden
fence around their yard in order to keep the
mean cats away from their dog Fido. There
is a gate that is 3.27 m long which is not
included as part of the length of the fence.
What total length of fence is required to
enclose a rectangular yard whose sides are
22.1 m and 69.9 m in length? 1 m = 3.281 ft .
Correct answer: 592.975 ft.
Height of a Fountain
008 10.0 points
A high fountain of water is located at the
center of a circular pool as in the figure. A
student walks around the pool and estimates
its circumference to be 196 m. Next, the
student stands at the edge of the pool and uses
a protractor to gauge the angle of elevation of
the top of the fountain to be 46.1◦ .
Correct answer: 8.61306 m/s.
005 (part 2 of 2) 10.0 points
What is this speed in miles per hour?
Correct answer: 19.2675 mi/h.
Holt SF 01A 0402
006 10.0 points
The distance between the sun and the Earth
is about 1.518 × 1011 m.
Express this distance in kilometers.
1. 1.518 × 108 km correct
2. 1.518 × 107 km
3. 1.518 × 1011 km
4. 1.518 × 109 km
1
How high is the fountain?
Correct answer: 32.4158 m.
Serway CP 01 39
009 (part 1 of 3) 10.0 points
Consider the triangle shown in the figure.
Version 001 – gen physics first semester practice final – gleue – (315192)
2
y
θ
14 m
φ
7.3 m
What is the length of the unknown side?
Correct answer: 11.9461 m.
010 (part 2 of 3) 10.0 points
Find the tangent of θ .
Correct answer: 0.611077.
011 (part 3 of 3) 10.0 points
Find the sin of φ .
Correct answer: 0.853295.
Serway CP 01 46
012 10.0 points
A surveyor measure the distance across a
straight river by the following methods: Starting directly across from a tree on the opposite
bank, she walks 142 m along the river bank to
establish a baseline. Then she sights across to
the tree. The angle from her baseline to the
tree is 42.4◦ .
How wide is the river?
Correct answer: 129.664 m.
Straight Line Equation
013 10.0 points
A graph of a straight line going through two
points is shown below.
5
4
3
2 b
1
0
−1
−2
−3
−4
−5
−5
x
b
−3
−1 0 1 2 3 4 5
What is the equation of this line?
5
1. y = − x +
6
6
2. y = + x +
5
5
3. y = + x −
6
5
4. y = − x −
6
5
5. y = + x −
6
6
6. y = − x +
5
5
7. y = − x +
6
5
8. y = − x −
6
6
9. y = + x −
5
6
10. y = − x −
5
13
6
13
6
13
5
13
correct
6
13
6
13
5
13
5
13
5
13
6
13
6
Volume 50
014 10.0 points
Calculate the volume of a ball that has a
diameter of 7.9 inches. 1 inch = 2.54 cm
4
exactly. V = π r 3 .
3
Correct answer: 4230.4 cm3 .
Ant Race
015 10.0 points
Version 001 – gen physics first semester practice final – gleue – (315192)
Two ants race across a table 63 cm long.
One travels at 5.17 cm/s and the other at
3.99999 cm/s.
When the first one crosses the finish line,
how far behind is the second one?
x
5.
7.
tQ
tR
tS
tP
0
Which graph shows the corresponding displacement x as a function of time t for the
same time interval?
x
1.
t
tR
tS
tP
x
t
tQ
tR
tS
tQ
tR
tS
tP
x
0
t
tQ
tR
tS
tP
x
t
0
tQ
tR
tS
tP
Displacement and Distance
017 (part 1 of 2) 10.0 points
A physics book is moved once around the
perimeter of a table of dimensions 1 m by 3
m.
If the book ends up at its initial position,
what is the magnitude of its displacement?
1. 3 m
2. 1 m
2.
0
8.
t
9.
t
tQ
x
0
The graph shows the velocity v as a function
of time t for an object moving in a straight
line.
v
0
t
tQ
tR
tS
tP
0
6. None of these graphs is correct.
Correct answer: 14.2574 cm.
AP M 1998 MC 3
016 10.0 points
3
3. 5 m
tP
x
4. 2 m
3.
5. 8 m
t
0
correct
tQ
tR
tS
tP
6. 7 m
7. None of these
x
8. 0 m correct
4.
9. 4 m
t
0
tQ
tR
tS
10. 6 m
tP
018 (part 2 of 2) 10.0 points
What is the distance traveled?
Version 001 – gen physics first semester practice final – gleue – (315192)
4
she begins to slow down?
1. 1 m
Correct answer: 13.44 m.
2. 2 m
3. 6 m
4. 4 m
5. 0 m
Displacement Curve 02
022 (part 1 of 2) 10.0 points
Consider a moving object whose position x
is plotted as a function of the time t. The
object moved in different ways during the
time intervals denoted I, II and III on the
figure.
6. 3 m
6
x
7. 7 m
8. 8 m correct
9. 5 m
4
2
I
10. None of these
Displacement 02
019 (part 1 of 2) 10.0 points
John runs at 4.6 m/s for 7.54 s along the x
axis.
How far does John run?
II
2
020 (part 2 of 2) 10.0 points
What relationship should be used to solve this
situation?
3. During interval II
3. x = v − t
4. None of these
5. x = v + t
Darting Child
021 10.0 points
Ann is driving down a street at 63 km/h.
Suddenly a child runs into the street.
If it takes Ann 0.768 s to react and apply
the brakes, how far will she have moved before
6
1. Same speed during intervals II and III
2. During interval I
v
2. x =
t
4
t
During these three intervals, when was the
object’s speed highest? Do not confuse the
speed with the velocity.
Correct answer: 34.684 m.
1. x = v t correct
III
4. Same speed during each of the three intervals.
5. During interval III correct
023 (part 2 of 2) 10.0 points
During which interval(s) did the object’s velocity remain constant?
1. During interval II only
2. During interval I only
3. During none of the three intervals
4. During interval III only
5. During each of the three intervals cor-
Version 001 – gen physics first semester practice final – gleue – (315192)
rect
4. 20 m/s
Distance Time Graph 01
024 (part 1 of 6) 10.0 points
Consider the following graph of motion.
5. 15 m/s
027 (part 4 of 6) 10.0 points
Consider the following graph of motion.
400
40
350
30
300
Distance (m)
Distance (m)
50
20
10
0
5
0
1
2 3 4
Time (sec)
5
150
50
0
0
1
2
3
4 5 6
Time (sec)
7
8
9
How far did the object travel between 3 s
and 9 s?
2. 50 m
1. 450 m
3. 10 m
2. 50 m
4. 30 m
3. 100 m
5. 20 m correct
4. 200 m
025 (part 2 of 6) 10.0 points
The graph indicates
200
100
How far did the object travel between 2 s
and 4 s?
1. 40 m
250
5. 250 m
6. 350 m correct
1. no motion.
7. 300 m
2. constant velocity. correct
8. 500 m
3. decreasing velocity.
9. 400 m
4. constant position.
10. 150 m
5. increasing velocity.
026 (part 3 of 6) 10.0 points
What is the speed from 2 s to 4 s?
028 (part 5 of 6) 10.0 points
The graph indicates
1. constant velocity.
1. 0 m/s
2. decreasing velocity.
2. 5 m/s
3. no motion.
3. 10 m/s correct
4. increasing velocity. correct
Version 001 – gen physics first semester practice final – gleue – (315192)
5. constant position.
029 (part 6 of 6) 10.0 points
What is the average speed from 3 s to 9 s?
6
After they completed their trip, what is their
mean speed for the trip?
1. 50 mph
2. 100 mph
1. 47 m/s
3. 25 mph correct
2. 20 m/s
4. 0 mph
3. 40 m/s
5. 12.5 mph
4. 36 m/s
5. 58 m/s correct
032 (part 3 of 3) 10.0 points
What is their mean speed from when they
leave Austin and first arrive in Waco?
6. 25 m/s
1. 25 mph South
7. 60 m/s
2. 50 mph North
8. 50 m/s
3. 25 mph North
9. 30 m/s
4. 25 mph
Rabid Longhorn Fans
030 (part 1 of 3) 10.0 points
Rabid Texas basketball fans have been known
to rush out of their laboratory class at 5:00
p.m. and immediately get on highway I-35
to arrive in Waco, 100 miles away, at 7:00
p.m. to see the Baylor-Longhorn basketball
game. They spend 4 hours watching and then
celebrating the outcome of the game, and then
drive 2 hours back to Austin.
After they completed their trip, what is
their mean velocity for their trip? mph is
miles per hour
5. 50 mph correct
6. 50 mph South
Train Motion
033 10.0 points
The plot shows x(t) for a train moving along
a long, straight track.
x
1. 0 mph correct
2. 100 mph
t
3. 50 mph
4. 12.5 mph
5. 25 mph
031 (part 2 of 3) 10.0 points
Which statement is correct about the motion?
1. The train at first speeds up, then slows
Version 001 – gen physics first semester practice final – gleue – (315192)
7
down.
4. During interval III only correct
2. The train at first slows down, then speeds
up.
3. The train continually slows down and
comes to rest. correct
5. During both intervals I and II
6. During interval II only
7. During both intervals II and III
4. The train moves at constant velocity.
5. The train continually speeds up.
6. The train in fact moves at constant speed
along a circular path described by the x(t)
curve.
036 (part 2 of 4) 10.0 points
During which interval(s) did the object have
no change in displacement?
1. During interval II only
2. During each of the three intervals
Acceleration of a Vehicle
034 10.0 points
A car traveling in a straight line has a velocity
of 5.46 m/s at some instant. After 4.49 s, its
velocity is 9.28 m/s.
What is its average acceleration in this time
interval?
3. During intervals II and III
4. During interval I only correct
5. During none of the three intervals
6. During interval III only
Correct answer: 0.85078 m/s2 .
Displacement Curve
035 (part 1 of 4) 10.0 points
Consider a moving object whose position x
is plotted as a function of the time t. The
object moved in different ways during the
time intervals denoted I, II and III on the
figure.
037 (part 3 of 4) 10.0 points
During which interval(s) did the object’s velocity remain constant?
1. During none of the three intervals
2. During each of the three intervals correct
x
3. During interval I only
3
2
4. During interval III only
1
5. During interval II only
O
I 1 II 2 III 3
t
When was the object’s speed highest?
1. Same speed during all three intervals
2. During both intervals I and III
3. During interval I only
038 (part 4 of 4) 10.0 points
During which interval(s) does the object have
non-zero, positive acceleration?
1. During none of the three intervals correct
2. During interval II only
Version 001 – gen physics first semester practice final – gleue – (315192)
3. During interval III only
8
is 9.8 m/s2 and the maximum height is 3.7 m .
Neglect air resistance.
4. During interval I only
Correct answer: 0.868966 s.
5. During each of the three intervals
Correct answer: 1.66 s.
Ball N 03
042 10.0 points
A ball is thrown upward.
hmax
b
bbbb
b b
b b
b b
9.3 m/s
Holt SF 02B 01
039 10.0 points
When the shuttle bus comes to a sudden stop
to avoid hitting a dog, it decelerates uniformly
at 5.0 m/s2 as it slows from 8.3 m/s to 0 m/s.
Find the time interval of acceleration for
the bus.
b
b
b
b
b
b
b
b
Motion 08
040 10.0 points
What is the acceleration of an object that
takes 20 s to change from a speed of 200 m/s
to 300 m/s?
b
What is its time interval between the release of the ball and the time it reaches its
maximum height? Its initial vertical speed
is 9.3 m/s and the acceleration of gravity is
9.8 m/s2 . Neglect air resistance.
1. 5 m/s
2. 5 m/s/s correct
3. 100 m/s/s
Correct answer: 0.94898 s.
b
b
b
b
b
b
b
b
bbb
bb
b b
b b
b
v0
v0
b
bbbb
b b
b b
b b
Ball N 02
043 10.0 points
A ball is thrown upward.
3.7 m
Ball N 04
041 10.0 points
A ball is thrown upward.
b
b
b
b
b
b
b
b
b
b
5.8 m
4. 100 m/s
b
What is its time interval between the release of the ball and the time it reaches its
maximum height? The acceleration of gravity
What is its initial vertical speed? The acceleration of gravity is 9.8 m/s2 and maximum
Version 001 – gen physics first semester practice final – gleue – (315192)
height is 5.8 m ,. Neglect air resistance.
3. Acceleterion, speed, velocity
Correct answer: 10.6621 m/s.
4. Acceleration, age, speed, temperature
Dropped Golf Ball
044 (part 1 of 2) 10.0 points
A golf ball is released from rest from the top
of a very tall building. Choose a coordinate
system whose origin is at the starting point
of the ball, and whose y axis points vertically
upward.
Neglecting air resistance, calculate the velocity of the ball after 2.95 s. The acceleration
of gravity is 9.8 m/s2 .
5. Speed and temperature
9
6. Acceleration and velocity correct
7. Acceleration, speed, temperature
8. Acceleration, age, speed
9. Age and temperature
10. Age, speed, temperature
Correct answer: −28.91 m/s.
045 (part 2 of 2) 10.0 points
What is the position of the ball after 2.95 s?
Neglect air resistance.
Correct answer: −42.6423 m.
Blown Off Course
046 (part 1 of 2) 10.0 points
A ship is expecting to travel to its home port
540 km due East. Before the ship starts to
travel, a severe storm comes up and blows the
ship 350 km due South.
How far is the ship from its home port?
Holt SF 03A 01
049 (part 1 of 2) 10.0 points
A truck driver attempting to deliver some
furniture travels 9 km east, turns around and
travels 5 km west, and then travels 13 km east
to his destination.
What distance has the driver traveled?
Correct answer: 27 km.
050 (part 2 of 2) 10.0 points
What is the magnitude of the driver’s total
displacement?
Correct answer: 17 km.
Correct answer: 643.506 km.
047 (part 2 of 2) 10.0 points
At what angle North of East must the ship
travel to reach its destination? Let East be 0◦
and North 90◦ .
Correct answer: 32.9492◦.
Hewitt CP9 05 E27
048 10.0 points
Which of acceleration, age, speed, temperature, and velocity are vector quantities?
Holt SF 03A 02
051 (part 1 of 2) 10.0 points
While following the directions on a treasure
map, a pirate walks 22.8 m north, then turns
and walks 2.4 m east.
What is the magnitude of the single
straight-line displacement that the pirate
could have taken to reach the treasure?
Correct answer: 22.926 m.
1. All are vectors.
052 (part 2 of 2) 10.0 points
At what angle with the north would he have
to walk?
2. All are scalars.
Correct answer: 6.00901◦ .
Version 001 – gen physics first semester practice final – gleue – (315192)
Holt SF 03B 03
053 (part 1 of 2) 10.0 points
A truck travels up a hill with a 7.4 ◦ incline.
The truck has a constant speed of 28 m/s.
What is the horizontal component of the
truck’s velocity?
Correct answer: 27.7668 m/s.
054 (part 2 of 2) 10.0 points
What is the vertical component of the truck’s
velocity?
Correct answer: 3.60628 m/s.
Holt SF 03Rev 29
055 (part 1 of 2) 10.0 points
A person walks the path shown. The total
trip consists of four straight-line paths.
104 m
N
434 m
W
E
S
213
m
15.0◦
59.0◦
m
284
At the end of the walk, what is the magnitude of the person’s resultant displacement
measured from the starting point?
Correct answer: 669.908 m.
056 (part 2 of 2) 10.0 points
What is the direction (measured from due
west, with counterclockwise positive) of the
person’s resultant displacement?
Correct answer: 68.2708◦.
Holt SF 03D 01
057 10.0 points
An autographed baseball rolls off of a 0.91 m
high desk and strikes the floor 0.84 m away
from the desk.
10
How fast was it rolling on the desk before
it fell off? The acceleration of gravity is
9.81 m/s2 .
Correct answer: 1.9502 m/s.
Dropping Medical Supplies
058 10.0 points
A plane drops a hamper of medical supplies
from a height of 3480 m during a practice run
over the ocean. The plane’s horizontal velocity was 106 m/s at the instant the hamper
was dropped.
What is the magnitude of the overall velocity of the hamper at the instant it strikes
the surface of the ocean? The acceleration of
gravity is 9.8 m/s2 .
Correct answer: 281.858 m/s.
Range of a Long Jump
059 (part 1 of 2) 10.0 points
A long jumper leaves the ground at an angle
of 19.2 ◦ to the horizontal and at a speed of
10.5 m/s.
How far does he jump? The acceleration
due to gravity is 9.8 m/s2 .
Correct answer: 6.98791 m.
060 (part 2 of 2) 10.0 points
What maximum height does he reach?
Correct answer: 0.608362 m.
Shooting an Arrow
061 (part 1 of 2) 10.0 points
An arrow is shot at an angle 35 ◦ with the
horizontal. It has a velocity of 49 m/s.
How high will the arrow go? The acceleration of gravity is 9.8 m/s2 .
Correct answer: 40.3013 m.
062 (part 2 of 2) 10.0 points
What horizontal distance will it travel?
Correct answer: 230.225 m.
Version 001 – gen physics first semester practice final – gleue – (315192)
5. 1, 2, and 3.
Forces 08
066 10.0 points
A push or pull that gives energy to an object, causing that object to start moving, stop
moving, or change its motion is
◦
53
1. inertia.
7.47 m
Cliff
11
.2
m
/s
Tipler PSE5 03 88
063 (part 1 of 2) 10.0 points
A 0.34 kg projectile is fired into the air from
the top of a 7.47 m cliff above a valley. Its
initial velocity is 11.2 m/s at 53 ◦ above the
horizontal.
11
2. friction.
3. a force. correct
x
How long is the projectile in the air? The
acceleration due to gravity is 9.8 m/s2 .
Correct answer: 2.44816 s.
064 (part 2 of 2) 10.0 points
How far from the bottom of the cliff does the
projectile land?
4. pressure.
Holt SF 04Rev 10
067 (part 1 of 2) 10.0 points
Four forces act on a hot-air balloon, as shown
from the side.
562 N
Correct answer: 16.5014 m.
Tennis Ball
065 10.0 points
Despite a very strong wind, a tennis player
manages to hit a tennis ball with her racquet
so that the ball passes over the net and lands
in her opponent’s court.
Consider the following forces:
1. A downward force of gravity,
2. A force by the hit, and
3. A force exerted by the air.
Which of the above forces is (are) acting on
the tennis ball after it has left contact with
the racquet and before it touches the ground?
1. 2 and 3.
2. 1 and 2.
3. 1 and 3. correct
4. 1 only.
533 N
394 N
265 N
Find the magnitude of the resultant force
on the balloon.
Correct answer: 327.918 N.
068 (part 2 of 2) 10.0 points
Find the direction of the resultant force (measured from the 533 N force, with up positive).
Correct answer: 64.9198◦ .
Holt SF 04Rev 11
Version 001 – gen physics first semester practice final – gleue – (315192)
069 (part 1 of 2) 10.0 points
Two lifeguards pull on ropes attached to a
raft. If they pull in the same direction, the raft
experiences a net external force of 325 N to
the right. If they pull in opposite directions,
the raft experiences a net external force of
182 N to the left.
Draw a free body diagram for each situation
and find the magnitude of the larger of the two
individual forces.
Correct answer: 253.5 N.
070 (part 2 of 2) 10.0 points
What is the magnitude of the smaller of the
individual forces?
12
1. Your weight is independent of your
mass.
2. Your weight increases. correct
3. Your weight decreases.
Mass and Weight
076 (part 1 of 2) 10.0 points
A person weighs 55.4 lb.
The acceleration of gravity is 9.8 m/s2 .
Determine her weight in newtons.
Correct answer: 246.419 N.
077 (part 2 of 2) 10.0 points
Determine her mass in kilograms.
Correct answer: 71.5 N.
Correct answer: 25.1448 kg.
Hewitt CP9 04 E15
071 (part 1 of 4) 10.0 points
1
Gravity on the surface of the moon is only
6
as strong as gravity on the Earth.
What is the weight of a 20 kg object on the
Earth? The acceleration of gravity is 10 m/s2 .
Correct answer: 200 N.
072 (part 2 of 4) 10.0 points
What is the weight on the moon?
Correct answer: 33.3333 N.
073 (part 3 of 4) 10.0 points
What is the mass on the earth?
Correct answer: 20 kg.
074 (part 4 of 4) 10.0 points
What is the mass on the moon?
Correct answer: 20 kg.
Hewitt CP9 04 E17
075 10.0 points
What happens to your weight when your mass
increases?
Holt SF 04Rev 50
078 10.0 points
A 4.6 kg bucket of water is raised from a well
by a rope.
The acceleration of gravity is 9.81 m/s2 .
If the upward acceleration of the bucket is
2.0 m/s2 , find the force exerted by the rope
on the bucket of water.
Correct answer: 54.326 N.
Force on a Coasting Car
079 10.0 points
A 1297.3 kg car is traveling at 25.7 m/s when
the driver takes his foot off the gas pedal. It
takes 5 s for the car to slow down to 20 m/s.
How large is the net force slowing the car?
Correct answer: 1478.92 N.
Hewitt CP9 04 P07
080 10.0 points
A firefighter of mass 69 kg slides down a vertical pole with an acceleration of 3 m/s2 .
The acceleration of gravity is 10 m/s2 .
What is the friction force that acts on him?
Correct answer: 483 N.
Version 001 – gen physics first semester practice final – gleue – (315192)
Holt SF 04B 05
081 10.0 points
A soccer ball kicked with a force of 13.4 N
accelerates at 7.9 m/s2 to the right.
What is the mass of the ball?
Correct answer: 1.6962 kg.
Net Force
082 (part 1 of 2) 10.0 points
A book weighing 22 N is placed on a table.
How much support force does a table exert
on the book?
13
2. the VW
3. Unable to determine
4. They experienced the same magnitude of
force. correct
088 (part 2 of 2) 10.0 points
Which bug experienced the greatest acceleration?
1. the insect correct
Correct answer: 22 N.
2. Their acceleration is same.
083 (part 2 of 2) 10.0 points
What is the net force on the book in this case?
3. Unable to determine.
4. the VW
Correct answer: 0 N.
Net Forces 02
084 (part 1 of 3) 10.0 points
A 48.4 N object is in free fall.
What is the magnitude of the net force
which acts on the object?
Correct answer: 48.4 N.
085 (part 2 of 3) 10.0 points
What is the magnitude of the net force when
the object encounters 17.4 N of air resistance?
Hewitt CP9 02 E29
089 10.0 points
As you stand on a floor, the floor exerts an
upward force on you.
Why are you not moved upward by this
force?
1. The upward force is equal to your weight
and the two forces cancel each other. correct
2. None of these
3. The upward force is negligible.
Correct answer: 31 N.
086 (part 3 of 3) 10.0 points
What is the magnitude of the net force when it
falls fast enough to encounter an air resistance
of 48.4 N?
4. The upward force is greater than your
weight, but air pressure pushes you down.
Without the air, you would be lifted up.
5. The upward force is less than your weight,
so you do not move up.
Correct answer: 0 N.
Conceptual 04 08
087 (part 1 of 2) 10.0 points
A fast-moving VW Beetle traveling at 50 mph
hit a mosquito hovering at rest above the road.
Which bug experienced the largest force?
1. the insect
Reaction Force 04
090 10.0 points
You hit someone with a force of 195 N.
How much force is exerted on you?
Correct answer: 195 N.
Conceptual 04 Q13
Version 001 – gen physics first semester practice final – gleue – (315192)
091 (part 1 of 2) 10.0 points
Four forces act on an object.
is exerted in each strand?
Correct answer: 27 N.
F1
F3
14
F4
F2
If the object is accelerating to the right,
compare the forces.
Constant Velocity
095 (part 1 of 2) 10.0 points
The force of friction acting on a sliding crate
is 117 N.
How much force must be applied to maintain a constant velocity?
Correct answer: 117 N.
1. F1 = F2 , F3 > F4
096 (part 2 of 2) 10.0 points
What will be the net force acting on the crate?
2. F1 < F2 , F3 < F4
Correct answer: 0 N.
3. F1 = F2 , F3 < F4 correct
Conceptual forces 03 short
097 10.0 points
4. F1 > F2 , F3 < F4
Consider a book that remains at rest on an
incline.
B
oo
k
5. F1 = F2 , F3 = F4
092 (part 2 of 2) 10.0 points
If the object is accelerating upward and to
the right, compare F1 to F2 and F3 to F4 .
1. F1 = F2 , F3 > F4
2. F1 = F2 , F3 = F4
3. F1 > F2 , F3 < F4 correct
4. F1 < F2 , F3 < F4
5. F1 = F2 , F3 < F4
Bag of Nails
093 (part 1 of 2) 10.0 points
When a 135 N bag of nails hangs motionless
from a single vertical strand of rope, how
much tension is exerted in the strand?
Correct answer: 135 N.
094 (part 2 of 2) 10.0 points
How much tension if the bag is supported by
5 vertical strands? That is, how much tension
The following figures show several attempts
at drawing free-body diagrams for the book.
Which figure has the correct directions for
each force? The magnitudes of the forces are
not necessarily drawn to scale.
normal
1.
friction
gravitational
Version 001 – gen physics first semester practice final – gleue – (315192)
2.
Hewitt CP9 04 E37
098 10.0 points
A parachutist, after opening the chute, finds
herself gently floating downward, no longer
gaining speed. She feels the upward pull of
the harness, while gravity pulls her down.
How much is the pull of the harness?
normal
gravitational
normal
3.
15
1. Equal to the gravity correct
2. Greater than the gravity
gravitational
3. Half of the gravity
4.
friction
4. Smaller than the gravity
normal
5. All are wrong.
gravitational
5.
friction
gravitational
6.
normal
friction
gravitational
friction
7.
gravitational
normal
8.
friction
gravitational
correct
Conceptual 05 Q19
099 10.0 points
In StarT rek and other science fiction sagas,
you often encounter a fictional device called a
tractor beam, capable of pulling objects into
the starship. Suppose that an object is falling
under the influence of gravity and drag. In
addition, imagine that a tractor beam on the
ground is pulling the object down.
If there is a limit to the force the tractor
beam can exert, will the object still attain a
terminal velocity?
1. No; it will escape from the gravity of the
Earth.
2. Yes; the terminal velocity would occur
when the air drag equals gravity plus the force
of the tractor beam. correct
3. No; the object will continue to speed up
as it falls.
Forces 06
100 10.0 points
Isaac Newton developed how many laws that
describe all states of motion?
1. four
Version 001 – gen physics first semester practice final – gleue – (315192)
2. three correct
3. two
4. one
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