Title: Physical Science Assessment Items
1Physical Science Assessment Items
2A car reaches 80 kilometers per hour, and then
suddenly crashes into a concrete wall. Without a
seat belt, the crash test dummy slams into the
cars dashboard because a. the crash test
dummys kinetic energy drops to zero. b. the dash
is pushed backwards into the crash test
dummy. c. the momentum of the car is being
transferred to the crash test dummy. d. the car
has stopped, but the crash test dummy is still
moving forward.
3A car reaches 80 kilometers per hour, and then
suddenly crashes into a concrete wall. Without a
seat belt, the crash test dummy slams into the
cars dashboard because a. the crash test
dummys kinetic energy drops to zero. b. the dash
is pushed backwards into the crash test
dummy. c. the momentum of the car is being
transferred to the crash test dummy. d. the car
has stopped, but the crash test dummy is still
moving forward.
4Leshawna used the same force in the same way to
push on three boxes. The boxes had masses of 3
kg., 5 kg., and 10 kg. Which box moved most
quickly, and which moved most slowly? a. The 10
kg. box moved most quickly the 3 kg. box moved
most slowly. b. The 5 kg. box move most quickly
the 10 kg. box moved most slowly. c. The 10 kg.
box moved most quickly the 5 kg box moved most
slowly d. The 3 kg. box moved most quickly the
10 kg. box moved most slowly.
5Leshawna used the same force in the same way to
push on three boxes. The boxes had masses of 3
kg., 5 kg., and 10 kg. Which box moved most
quickly, and which moved most slowly? a. The 10
kg. box moved most quickly the 3 kg. box moved
most slowly. b. The 5 kg. box move most quickly
the 10 kg. box moved most slowly. c. The 10 kg.
box moved most quickly the 5 kg box moved most
slowly d. The 3 kg. box moved most quickly the
10 kg. box moved most slowly.
6According to Newton, a force may cause an object
to do all of the following except a. gain
mass b. slow down c. speed up d. change shape
7According to Newton, a force may cause an object
to do all of the following except a. gain
mass b. slow down c. speed up d. change shape
8The force exerted on a cart is constant. On a
frictionless surface, if the carts mass is
increased, the acceleration will a. increase
only. b. decrease only. c. increase, then
decrease. d. decrease, then increase.
9The force exerted on a cart is constant. On a
frictionless surface, if the carts mass is
increased, the acceleration will a. increase
only. b. decrease only. c. increase, then
decrease. d. decrease, then increase.
10The figure shows a block that is being pulled
along the floor. According to the figure, what is
the acceleration of the block? a. 1 m/s2 b. 2
m/s2 c. 4 m/s2 d. 6 m/s2
11The figure shows a block that is being pulled
along the floor. According to the figure, what is
the acceleration of the block? a. 1 m/s2 b. 2
m/s2 c. 4 m/s2 d. 6 m/s2
12A 2,000-kg car accelerates at a constant rate of
3 m/s2. How much net force must be applied to
accelerate this car at that rate? a. 667
N b. 0.0015 N c. 6,000 N d. 18,000 N
13A 2,000-kg car accelerates at a constant rate of
3 m/s2. How much net force must be applied to
accelerate this car at that rate? a. 667
N b. 0.0015 N c. 6,000 N d. 18,000 N
14Newtons Third Law of Motion states that every
force is accompanied by an equal and opposite
force. This is BEST illustrated by a. a
basketball bouncing on the floor. b. a book
sliding off the car seat when the car turns a
corner. c. a car accelerating as it rolls down a
hill. d. a pencil falling off a table.
15Newtons Third Law of Motion states that every
force is accompanied by an equal and opposite
force. This is BEST illustrated by a. a
basketball bouncing on the floor. b. a book
sliding off the car seat when the car turns a
corner. c. a car accelerating as it rolls down a
hill. d. a pencil falling off a table.
16A gun recoils when it is fired. The recoil is the
result of action-reaction force pairs. As the
gases from the gunpowder explosion expand, the
gun pushes the bullet forward and the bullet
pushes the gun backwards. The acceleration of the
recoiling gun is a. greater than the
acceleration of the bullet. b. smaller than the
acceleration of the bullet. c. the same as the
acceleration of the bullet. d. cannot be compared
to the acceleration of the bullet.
17A gun recoils when it is fired. The recoil is the
result of action-reaction force pairs. As the
gases from the gunpowder explosion expand, the
gun pushes the bullet forward and the bullet
pushes the gun backwards. The acceleration of the
recoiling gun is a. greater than the
acceleration of the bullet. b. smaller than the
acceleration of the bullet. c. the same as the
acceleration of the bullet. d. cannot be compared
to the acceleration of the bullet.
18A football player kicks a 0.4-kg football resting
on a tee with a force of 40 newtons. What is the
force on the players foot? a. 0 N b. 20 N c. 40
N d. 80 N
19A football player kicks a 0.4-kg football resting
on a tee with a force of 40 newtons. What is the
force on the players foot? a. 0 N b. 20 N c. 40
N d. 80 N
20- A student applies a net force of 150 N to the
pedals of a bicycle. The mass of the rider and
the bicycle is 50 kg. What is the acceleration of
the rider and the bicycle? - a. 1 m/s2
- . 3 m/s2
- . 5 m/s2
- . 10 m/s2
21- A student applies a net force of 150 N to the
pedals of a bicycle. The mass of the rider and
the bicycle is 50 kg. What is the acceleration of
the rider and the bicycle? - a. 1 m/s2
- . 3 m/s2
- . 5 m/s2
- . 10 m/s2
22A softball player hitting a ball swings a 1 kg
bat. In the process of exerting 2 N of force on
the softball, the bat breaks. Which of the
following explains why the bat breaks? a. The
ball is moving at the same rate as Earths
rotation. b. The ball is being accelerated by
gravity. c. Air resistance provides the force to
break the bat. d. The ball exerts an equal but
opposite force of 2 N on the bat.
23A softball player hitting a ball swings a 1 kg
bat. In the process of exerting 2 N of force on
the softball, the bat breaks. Which of the
following explains why the bat breaks? a. The
ball is moving at the same rate as Earths
rotation. b. The ball is being accelerated by
gravity. c. Air resistance provides the force to
break the bat. d. The ball exerts an equal but
opposite force of 2 N on the bat.
24The graph below relates speed and time of four
cars (1, 2, 3, and 4) traveling along a straight
highway. Which two cars move with zero
acceleration? a. 1 and 4 b. 2 and 3 c. 1 and
2 d. 3 and 4
25The graph below relates speed and time of four
cars (1, 2, 3, and 4) traveling along a straight
highway. Which two cars move with zero
acceleration? a. 1 and 4 b. 2 and 3 c. 1 and
2 d. 3 and 4
26This graph contains information about the motion
of a bicycle. At which of the following times is
the bicycles acceleration zero? a. 1 second b. 2
seconds c. 4 seconds d. 8 seconds
27This graph contains information about the motion
of a bicycle. At which of the following times is
the bicycles acceleration zero? a. 1 second b. 2
seconds c. 4 seconds d. 8 seconds
28Which graph represents an object traveling with a
constant acceleration?
29Which graph represents an object traveling with a
constant acceleration?
30The moon has a smaller mass than the Earth. If
you were able to travel to the moon, your weight
would a. increase. b. decrease. c. remain the
same. d. vary from day to night.
31The moon has a smaller mass than the Earth. If
you were able to travel to the moon, your weight
would a. increase. b. decrease. c. remain the
same. d. vary from day to night.
32The force of gravity on an object depends
primarily upon the objects a. density. b. ma
ss. c. momentum. d. volume.
33The force of gravity on an object depends
primarily upon the objects a. density. b. ma
ss. c. momentum. d. volume.
34Tides, such as those along the coast of South
Carolina, are caused by gravitational attractions
acting on Earth. Why is the gravitational
attraction of the Moon a greater factor in
determining tides than the gravitational
attraction of the larger sun? a. Earth is much
closer to the Moon than to the Sun. b. The Suns
gravity is a factor only during the day. c. The
Moons core has a much greater density than the
Suns core. d. The Suns mass is smaller than the
mass of the Moon.
35Tides, such as those along the coast of South
Carolina, are caused by gravitational attractions
acting on Earth. Why is the gravitational
attraction of the Moon a greater factor in
determining tides than the gravitational
attraction of the larger sun? a. Earth is much
closer to the Moon than to the Sun. b. The Suns
gravity is a factor only during the day. c. The
Moons core has a much greater density than the
Suns core. d. The Suns mass is smaller than the
mass of the Moon.
36Over a period of a few months, Marsha noticed
that there would be a shock between her finger
and a doorknob at her house. She decided to try
to determine factors that affected this charge.
She noticed that on especially cold, dry days the
shock would be worse than on warm, humid days.
Which of the following would not be a factor in
the strength of the charge? a. the distance
between her finger and the doorknob b. the
relative humidity in the room c. the strength of
the charge on her finger or the strength of the
charge of the doorknob d. the brand of doorknob
involved
37Over a period of a few months, Marsha noticed
that there would be a shock between her finger
and a doorknob at her house. She decided to try
to determine factors that affected this charge.
She noticed that on especially cold, dry days the
shock would be worse than on warm, humid days.
Which of the following would not be a factor in
the strength of the charge? a. the distance
between her finger and the doorknob b. the
relative humidity in the room c. the strength of
the charge on her finger or the strength of the
charge of the doorknob d. the brand of doorknob
involved
38Static electricity happens when electrons pass
from one object to another, such as from your
hair to a comb as you comb your hair. If you then
hold the comb near your hair, strands of hair
appear to move forward and stick to the comb.
The hair and the comb a. attract each other
because they have the same charge. b. attract
each other because they have opposite
charges. c. repel each other because they have
the same charges. d. repel each other because
they have opposite charges.
39Static electricity happens when electrons pass
from one object to another, such as from your
hair to a comb as you comb your hair. If you then
hold the comb near your hair, strands of hair
appear to move forward and stick to the comb.
The hair and the comb a. attract each other
because they have the same charge. b. attract
each other because they have opposite
charges. c. repel each other because they have
the same charges. d. repel each other because
they have opposite charges.
40A balloon is rubbed with a piece of cloth. As a
result, the balloon has a negative charge. What
has happened? a. Electrons have moved from the
inside to the outside of the balloon. b. Positive
charges have traveled from the balloon to the
cloth. c. Electrons have moved from the balloon
to the cloth. d. Electrons have traveled from the
cloth to the balloon.
41A balloon is rubbed with a piece of cloth. As a
result, the balloon has a negative charge. What
has happened? a. Electrons have moved from the
inside to the outside of the balloon. b. Positive
charges have traveled from the balloon to the
cloth. c. Electrons have moved from the balloon
to the cloth. d. Electrons have traveled from the
cloth to the balloon.
42Rachel made four electromagnets by winding coils
of copper wire around a nail. She connected each
end of the wire to a battery to form an
electromagnet which she used to pick up paper
clips. In this experiment, what kind of energy is
changed directly into magnetic energy? a. heat
energy b. electrical energy c. chemical
energy d. light energy
43Rachel made four electromagnets by winding coils
of copper wire around a nail. She connected each
end of the wire to a battery to form an
electromagnet which she used to pick up paper
clips. In this experiment, what kind of energy is
changed directly into magnetic energy? a. heat
energy b. electrical energy c. chemical
energy d. light energy
44In this circuit, what is the current through the
3-ohm resistor? a. 0.3 A b. 0.6 A c. 3.0 A d. 9.0
A
45In this circuit, what is the current through the
3-ohm resistor? a. 0.3 A b. 0.6 A c. 3.0 A d. 9.0
A
46The circuit below has three identical light
bulbs, numbered 1, 2, and 3. The current passing
through light bulb 1 is I1, 2 is I2, and 3 is I3.
Which of the following statements is true? a. I1
is less than I2. b. I1 is the same as I2 c. I1 is
greater than I2. d. A relationship between I1
and I2 cannot be determined from this diagram.
47The circuit below has three identical light
bulbs, numbered 1, 2, and 3. The current passing
through light bulb 1 is I1, 2 is I2, and 3 is I3.
Which of the following statements is true? a. I1
is less than I2. b. I1 is the same as I2 c. I1 is
greater than I2. d. A relationship between I1
and I2 cannot be determined from this diagram.
48In the circuit shown below, the meter registers
2.0 amperes. The voltage across the 10.0-ohm
resistor is about a. 2.0 V. b. 8.0 V. c. 12.0
V. d. 20.0 V.
49In the circuit shown above, the meter registers
2.0 amperes. The voltage across the 10.0-ohm
resistor is about a. 2.0 V. b. 8.0 V. c. 12.0
V. d. 20.0 V.
50The following diagrams show a flashlight battery
and a bulb connected by wires to various
substances. Which of the bulbs will light? a. 1
and 2 only b. 2 and 3 only c. 3 and 4 only d. 1,
2, and 3 only
51The following diagrams show a flashlight battery
and a bulb connected by wires to various
substances. Which of the bulbs will light? a. 1
and 2 only b. 2 and 3 only c. 3 and 4 only d. 1,
2, and 3 only
52Which of the following is a measure of the
potential energy per unit charge in an electric
circuit? a. resistance b. amperage c. voltage d. o
hmage
53Which of the following is a measure of the
potential energy per unit charge in an electric
circuit? a. resistance b. amperage c. voltage d. o
hmage
54To double the current through a resistor in a
circuit, a. double the voltage across the
resistor. b. double the resistance of the
resistor. c. double the voltage across the
resistor and double the resistance. d. double the
resistance and decrease the voltage across it by
half.
55To double the current through a resistor in a
circuit, a. double the voltage across the
resistor. b. double the resistance of the
resistor. c. double the voltage across the
resistor and double the resistance. d. double the
resistance and decrease the voltage across it by
half.
56A 72 W navigation unit on a commercial aircraft
has a 24 V power supply and uses 3 A of
electrical current. What is the electrical
resistance of the navigation unit? a. 4 O b. 8
O c. 13 O d. 22 O
57A 72 W navigation unit on a commercial aircraft
has a 24 V power supply and uses 3 A of
electrical current. What is the electrical
resistance of the navigation unit? a. 4 O b. 8
O c. 13 O d. 22 O
58Sally needs to design an electrical circuit for a
new science lab at the high school. Teachers
will be using hotplates which draw a lot of
amperage on the circuit causing the circuit to
heat up, resulting in a potential fire hazard.
Which of the following components on the circuit
is the BEST example of a safety feature which
opens the circuit in the event that too much
amperage is being drawn? a. switch b. load c. circ
uit breaker d. power supply
59Sally needs to design an electrical circuit for a
new science lab at the high school. Teachers
will be using hotplates which draw a lot of
amperage on the circuit causing the circuit to
heat up, resulting in a potential fire hazard.
Which of the following components on the circuit
is the BEST example of a safety feature which
opens the circuit in the event that too much
amperage is being drawn? a. switch b. load c. circ
uit breaker d. power supply
60As a large wave reaches the surfer, she is pushed
forward and upward. Which statement about her
kinetic and potential energy is correct? a. There
is an increase in her kinetic energy only. b.
There is an increase in her potential energy
only. c. There is an increase in both her
potential and kinetic energy. d. There is no
change in her potential and kinetic energy.
61As a large wave reaches the surfer, she is pushed
forward and upward. Which statement about her
kinetic and potential energy is correct? a. There
is an increase in her kinetic energy only. b.
There is an increase in her potential energy
only. c. There is an increase in both her
potential and kinetic energy. d. There is no
change in her potential and kinetic energy.
62At which location does the skateboarder have the
MOST kinetic energy and the LEAST potential
energy? a. 1 b. 2 c. 3 d. 4
63At which location does the skateboarder have the
MOST kinetic energy and the LEAST potential
energy? a. 1 b. 2 c. 3 d. 4
64A ball rolls down an inclined plane. After 2
seconds, what fraction of the balls original
potential energy remains? a. 1/8 b. 1/4 c. 2/3 d.
3/4
65A ball rolls down an inclined plane. After 2
seconds, what fraction of the balls original
potential energy remains? a. 1/8 b. 1/4 c. 2/3 d.
3/4
66Windmills are used to convert wind energy into a
more useful form. In most cases, there are three
steps in this process. The energy is in a
different form at each step. Which of the
following flowcharts shows the most likely order
of the energy changes? a. wind energy ?
mechanical energy ? solar energy b. wind energy ?
thermal energy ? mechanical energy c. wind energy
? solar energy ? electrical energy d. wind energy
? mechanical energy ? electrical energy
67Windmills are used to convert wind energy into a
more useful form. In most cases, there are three
steps in this process. The energy is in a
different form at each step. Which of the
following flowcharts shows the most likely order
of the energy changes? a. wind energy ?
mechanical energy ? solar energy b. wind energy ?
thermal energy ? mechanical energy c. wind energy
? solar energy ? electrical energy d. wind energy
? mechanical energy ? electrical energy
68Your body uses food as an energy source to move
your muscles. This is an example of what type of
energy conversion? a. Chemical to
mechanical b. Mechanical to electrical c. Mechanic
al to chemical d. Electrical to mechanical
69Your body uses food as an energy source to move
your muscles. This is an example of what type of
energy conversion? a. Chemical to
mechanical b. Mechanical to electrical c. Mechanic
al to chemical d. Electrical to mechanical
70Which of the following is designed to transform
an electromagnetic wave into a mechanical
wave? a. a portable radio b. a television
screen c. a computer monitor d. a mercury
thermometer
71Which of the following is designed to transform
an electromagnetic wave into a mechanical
wave? a. a portable radio b. a television
screen c. a computer monitor d. a mercury
thermometer
72- How much work is done on a downhill skier by an
average braking force of 9.8 102 newtons to
stop her in a distance of 10. meters? - a. 9.8 x 101 J
- . 1.0 x 101 J
- . 9.8 x 103 J
- d. 1.0 x 103 J
73- How much work is done on a downhill skier by an
average braking force of 9.8 102 newtons to
stop her in a distance of 10. meters? - a. 9.8 x 101 J
- . 1.0 x 101 J
- . 9.8 x 103 J
- d. 1.0 x 103 J
74A mechanic uses a block and tackle to lift an
engine out of a car. The engine weighs 3,000
newtons and is lifted 2 meters. How many
Newton-meters (Nm) of work are done during this
process? a. 1,500 Nm b. 3,000 Nm c. 4,500
Nm d. 6,000 Nm
75A mechanic uses a block and tackle to lift an
engine out of a car. The engine weighs 3,000
newtons and is lifted 2 meters. How many
Newton-meters (Nm) of work are done during this
process? a. 1,500 Nm b. 3,000 Nm c. 4,500
Nm d. 6,000 Nm
76Which of the following arrangements will remain
stationary unless an external force acts on it?
Assume there is no friction. a. b.
c. d.
77Which of the following arrangements will remain
stationary unless an external force acts on it?
Assume there is no friction. a. b.
c. d.
78Which explanation below BEST explains why a
person may not be able to lift a wheelbarrow by
its handles? a. The effort force is too close to
the fulcrum. b. The resistance force is to close
to the fulcrum. c. The fulcrum is too large. d.
The effort force is greater than the resistance
force.
79Which explanation below BEST explains why a
person may not be able to lift a wheelbarrow by
its handles? a. The effort force is too close to
the fulcrum. b. The resistance force is to close
to the fulcrum. c. The fulcrum is too large. d.
The effort force is greater than the resistance
force.
80An adult and a child are on a seesaw with the
fulcrum in the middle. Which of the following
BEST describes why the child cannot lift the
adult? a. The resistance force is not enough to
raise the fulcrum. b. The effort force is not
enough to raise the fulcrum. c. The resistance
force is not enough to raise the fulcrum. d. The
effort force is not enough to overcome the
resistance force.
81An adult and a child are on a seesaw with the
fulcrum in the middle. Which of the following
BEST describes why the child cannot lift the
adult? a. The resistance force is not enough to
raise the fulcrum. b. The effort force is not
enough to raise the fulcrum. c. The resistance
force is not enough to raise the fulcrum. d. The
effort force is not enough to overcome the
resistance force.
82The energy produced by a D cell battery would be
classified as a. kinetic energy b. potential
energy c. electromagnetic energy d. heat energy
83The energy produced by a D cell battery would be
classified as - a. kinetic energy b. potential
energy c. electromagnetic energy d. heat energy
84The volume of 500 L of a gas at 100 kPa is
decreased to 250 L at a constant temperature.
What is the new gas pressure? a. 200 kPa b. 250
kPa c. 500 kPa d. 1000 kPa
85The volume of 500 L of a gas at 100 kPa is
decreased to 250 L at a constant temperature.
What is the new gas pressure? a. 200 kPa b. 250
kPa c. 500 kPa d. 1000 kPa
86Which graph best represents the relationship
between volume V and temperature T for a fixed
mass of a gas at constant pressure?
87Which graph best represents the relationship
between volume V and temperature T for a fixed
mass of a gas at constant pressure?
88Labels on cylinders of compressed gas state the
highest temperature to which the gas may be
exposed. A reason for this warning is a. if you
decrease the volume and hold the temperature
constant, the pressure will increase. b. the
container expands in size when heated. c. as the
temperature increases, pressure increases and the
cylinder may explode. d. the density of the gas
decreases.
89Labels on cylinders of compressed gas state the
highest temperature to which the gas may be
exposed. A reason for this warning is a. if you
decrease the volume and hold the temperature
constant, the pressure will increase. b. the
container expands in size when heated. c. as the
temperature increases, pressure increases and the
cylinder may explode. d. the density of the gas
decreases.
90A party shop delivers helium-filled balloons to
homes and businesses. The owners realize from
experience that on hot summer days they should
inflate the balloons only three-quarters full. On
cold winter days they can fully inflate the
balloons. Which of the following is the BEST
hypothesis to explain this observation? a. The
helium gas is more active in the winter
season. b. Air outside the balloons leaks into
the balloons. c. As the temperature increases,
the helium in the balloons expands. d. Outdoor
air pressure in the summer is less than indoor
air pressure.
91A party shop delivers helium-filled balloons to
homes and businesses. The owners realize from
experience that on hot summer days they should
inflate the balloons only three-quarters full. On
cold winter days they can fully inflate the
balloons. Which of the following is the BEST
hypothesis to explain this observation? a. The
helium gas is more active in the winter
season. b. Air outside the balloons leaks into
the balloons. c. As the temperature increases,
the helium in the balloons expands. d. Outdoor
air pressure in the summer is less than indoor
air pressure.
92In which state would the particles of a material
fill a room fastest? a. solid b. liquid c. gas d.
water
93In which state would the particles of a material
fill a room fastest? a. solid b. liquid c. gas d.
water
94In which state of matter are the particles
farthest apart from each other? a. solid b. liquid
c. gas d. fluid
95In which state of matter are the particles
farthest apart from each other? a. solid b. liquid
c. gas d. fluid
96During the warm afternoon, Mary submerged her
hand in a lake. As she did this, heat was
transferred from her skin to the water. This
transfer of heat is an example of
a. radiation. b. conduction. c. convection. d. e
vaporation.
97During the warm afternoon, Mary submerged her
hand in a lake. As she did this, heat was
transferred from her skin to the water. This
transfer of heat is an example of
a. radiation. b. conduction. c. convection. d. e
vaporation.
98- An AM radio station transmits a wavelength of 250
m. Assuming the radio signal travels through the
air at 3.00 X 108 m/s, what frequency would this
signal have? - a. 250 mHz
- . 750 Hz
- . 1200 Hz
- . 1200 kHz
99- An AM radio station transmits a wavelength of 250
m. Assuming the radio signal travels through the
air at 3.00 X 108 m/s, what frequency would this
signal have? - a. 250 mHz
- . 750 Hz
- . 1200 Hz
- . 1200 kHz
100The wave in the diagram below has a frequency of
40. hertz. What is the speed of the wave? a. 13
m/s b. 27 m/s c. 60 m/s d. 120 m/s
101The wave in the diagram below has a frequency of
40. hertz. What is the speed of the wave? a. 13
m/s b. 27 m/s c. 60 m/s d. 120 m/s
102Which wave diagram has both wavelength (?) and
amplitude (A) labeled correctly? a. 1 b. 2 c. 3 d.
4
103Which wave diagram has both wavelength (?) and
amplitude (A) labeled correctly? a. 1 b. 2 c. 3 d.
4
104In the diagram below, a water wave having a speed
of 0.25 m/s causes a cork to move up and down 4.0
times in 8.0 seconds. What is the wavelength of
the water wave? a. 1.0 m b. 2.0 m c. 8.0 m d. 0.5
m
105In the diagram below, a water wave having a speed
of 0.25 m/s causes a cork to move up and down 4.0
times in 8.0 seconds. What is the wavelength of
the water wave? a. 1.0 m b. 2.0 m c. 8.0 m d. 0.5
m
106The diagram below shows a wave trace. Distance Z
is a measure of a. amplitude. b. frequency. c. w
avelength. d. wave speed.
107The diagram below shows a wave trace. Distance Z
is a measure of a. amplitude. b. frequency. c. w
avelength. d. wave speed.
108Waves travel through a medium at a speed which
depends upon the type of material which makes up
the medium. Waves which travel through a medium
as an up and down vibration at a right angle to
the direction of the wave are classified as
a. longitudinal waves. b. transverse
waves. c. primary waves. d. surface waves.
109Waves travel through a medium at a speed which
depends upon the type of material which makes up
the medium. Waves which travel through a medium
as an up and down vibration at a right angle to
the direction of the wave are classified as
a. longitudinal waves. b. transverse
waves. c. primary waves. d. surface waves.
110Waves travel through a medium at a speed which
depends upon the type of material which makes up
the medium. Waves which travel through a medium
as a back and forth vibration is parallel to the
direction of the wave are classified as
a. longitudinal waves. b. transverse
waves. c. primary waves. d. surface waves.
111Waves travel through a medium at a speed which
depends upon the type of material which makes up
the medium. Waves which travel through a medium
as a back and forth vibration is parallel to the
direction of the wave are classified as
a. longitudinal waves. b. transverse
waves. c. primary waves. d. surface waves.
112As the surf gets rougher, the surfer estimates
that she is bobbing up and down once every two
seconds. What is the frequency of the water waves
that are passing her? a. 0.5 Hertz b. 1.0
Hertz c. 2.0 Hertz d. 3.0 Hertz
113As the surf gets rougher, the surfer estimates
that she is bobbing up and down once every two
seconds. What is the frequency of the water waves
that are passing her? a. 0.5 Hertz b. 1.0
Hertz c. 2.0 Hertz d. 3.0 Hertz
114If one sound has a higher frequency than another,
it also has a. less volume. b. a higher
pitch. c. greater amplitude. d. a lower Hertz
value.
115If one sound has a higher frequency than another,
it also has a. less volume. b. a higher
pitch. c. greater amplitude. d. a lower Hertz
value.
116What property of electromagnetic waves makes it
possible to use these waves to transmit
information between a space shuttle and NASA
mission control centers on the ground? a.
Electromagnetic waves are transverse waves. b.
Electromagnetic waves have very low velocity. c.
Electromagnetic waves are all visible to human
eyes. d. Electromagnetic waves can travel through
a vacuum.
117What property of electromagnetic waves makes it
possible to use these waves to transmit
information between a space shuttle and NASA
mission control centers on the ground? a.
Electromagnetic waves are transverse waves. b.
Electromagnetic waves have very low velocity. c.
Electromagnetic waves are all visible to human
eyes. d. Electromagnetic waves can travel through
a vacuum.
118Which of the following aspects of electromagnetic
radiation best explains why electromagnetic
radiation can be both useful and harmful to
humans? a. Electromagnetic radiation travels at
the speed of light. b. Electromagnetic radiation
can travel through a vacuum. c. Electromagnetic
radiation is energy and can interact with
matter. d. Electromagnetic radiation can be
described in terms of both wavelength and
frequency.
119Which of the following aspects of electromagnetic
radiation best explains why electromagnetic
radiation can be both useful and harmful to
humans? a. Electromagnetic radiation travels at
the speed of light. b. Electromagnetic radiation
can travel through a vacuum. c. Electromagnetic
radiation is energy and can interact with
matter. d. Electromagnetic radiation can be
described in terms of both wavelength and
frequency.
120The ultraviolet portion of the electromagnetic
spectrum is responsible for both suntans and
sunburns. Many scientists believe that levels of
ultraviolet radiation reaching the Earths
surface will increase because a. of increased
atmospheric levels of CO2. b. of the breakdown of
the ozone layer. c. the Sun is emitting more
ultraviolet radiation. d. of the increased use of
radios and televisions.
121The ultraviolet portion of the electromagnetic
spectrum is responsible for both suntans and
sunburns. Many scientists believe that levels of
ultraviolet radiation reaching the Earths
surface will increase because a. of increased
atmospheric levels of CO2. b. of the breakdown of
the ozone layer. c. the Sun is emitting more
ultraviolet radiation. d. of the increased use of
radios and televisions.
122A sound wave traveling through a solid material
has a frequency of 400 hertz. The wavelength of
this sound is 5 meters. What is the speed of the
sound in this material? a. 80 m/s b. 2000
m/s c. 200 m/s d. 0.0125 m/s
123A sound wave traveling through a solid material
has a frequency of 400 hertz. The wavelength of
this sound is 5 meters. What is the speed of the
sound in this material? a. 80 m/s b. 2000
m/s c. 200 m/s d. 0.0125 m/s
124- What is the frequency of a light wave with a
wavelength of 6.0 x 107 meter traveling through
space? - a. 2.0 x 1015 Hz
- . 5.0 x 101 Hz
- . 1.8 x 1014 Hz
- . 5.0 x 1014 Hz
125- What is the frequency of a light wave with a
wavelength of 6.0 x 107 meter traveling through
space? - a. 2.0 x 1015 Hz
- . 5.0 x 101 Hz
- . 1.8 x 1014 Hz
- . 5.0 x 1014 Hz
126During a flame test, ions of a specific metal are
heated in the flame of a gas burner. A
characteristic color of light is emitted by these
ions in the flame when the electrons a. gain
energy as they return to lower energy levels. b.
gain energy as they move to higher energy
levels. c. emit energy as they return to lower
energy levels. d. emit energy as they move to
higher energy levels.
127During a flame test, ions of a specific metal are
heated in the flame of a gas burner. A
characteristic color of light is emitted by these
ions in the flame when the electrons a. gain
energy as they return to lower energy levels. b.
gain energy as they move to higher energy
levels. c. emit energy as they return to lower
energy levels. d. emit energy as they move to
higher energy levels.
128The light produced by signs using neon gas
results from electrons that are a. moving from
a higher to a lower principal energy
level. b. moving from a lower to a higher
principal energy level. c. being lost by the Ne
atoms. d. being gained by the Ne atoms.
129The light produced by signs using neon gas
results from electrons that are a. moving from
a higher to a lower principal energy
level. b. moving from a lower to a higher
principal energy level. c. being lost by the Ne
atoms. d. being gained by the Ne atoms.
130Silicon is a metalloid which is used in the
computer industry to control the flow of
electricity on small electrical circuits so that
they do not overheat. Silicon is an example of
a. a conductor. b. an insulator. c. a
semiconductor. d. a resistor.
131Silicon is a metalloid which is used in the
computer industry to control the flow of
electricity on small electrical circuits so that
they do not overheat. Silicon is an example of
a. a conductor. b. an insulator. c. a
semiconductor. d. a resistor.