PHYSICS B Q AND A
Sound travels slowest through what temperature of water? - (CORRECT
ANSWER)20 C
The diagram represents wavelengths of different colors of visible light that pass by in
a specific time period.Which color of light has the greatest frequency? (waves very
close to eachother) - (CORRECT ANSWER)Violet
A flute plays a note with a frequency of 266 Hz. What is the speed of sound if the
wavelength is 1.3 m? - (CORRECT ANSWER)346 m/s
A wave has a wavelength of 4.9 m and a velocity of 9.2 m/s. The medium through
which this wave is traveling is then heated to a greater temperature.
What must be true about the frequency of this wave? - (CORRECT ANSWER)The
frequency is equal to 1.9 Hz.
Which change will decrease the speed of a sound wave traveling through a gaseous
matter? - (CORRECT ANSWER)deceasing the temperature.
An FM radio station broadcasts at 9.23 × 107 Hz. Given that the radio waves travel
at 3.00 × 108 m/s, what is the wavelength of these waves? - (CORRECT ANSWER)
formula for wavelength - (CORRECT ANSWER)wavelength = propagation
speed/frequency; l = c / ¦
All parts of the electromagnetic spectrum travel at a speed of 3 × 108 m/s when
traveling through no medium. A "vacuum" means that there is no medium, such as a
tube without any air in it. Therefore, 3 × 108 m/s is said to be the speed of light in a
vacuum. If an electromagnetic wave's frequency doubles in a vacuum, what are the
other effects on the wave? - (CORRECT ANSWER)Wavelength divides in half and
speed stays the same.
What best describes the relationship between wavelength and frequency in an
electromagnetic wave? - (CORRECT ANSWER)directly proportional
The speed of sound through argon is shown.
If argon could exist as a solid, what would best represent the speed through solid
argon? - (CORRECT ANSWER)250 m/s
longitudinal waves - (CORRECT ANSWER)move parallel to the wave
transverse waves - (CORRECT ANSWER)waves move perpendicular
mechanical waves - (CORRECT ANSWER)waves that require a medium to travel
electromagnetic waves - (CORRECT ANSWER)A form of energy that can travel
through space. do not need a medium to carry energy
,wave - (CORRECT ANSWER)a disturbance that transfers energy from one place to
another
crest - (CORRECT ANSWER)highest point of a wave
trough - (CORRECT ANSWER)lowest point on a wave
wavelength - (CORRECT ANSWER)distance between two points
amplitude - (CORRECT ANSWER)height from the midpoint of a wave to the crest or
trough, the closer the particles in the wave the closer the higher the amplitude, the
farther the particles the lower the amplitude.
compression - (CORRECT ANSWER)The part of a longitudinal wave where the
particles are close together
rarefaction - (CORRECT ANSWER)a part in a longitudinal wave where the particles
are spread apart
Frequency - (CORRECT ANSWER)The number of complete waves that pass a
given point in a certain amount of time. cycles per second. 1/period
period - (CORRECT ANSWER)Amount of time it takes one wavelength to pass a
point. seconds per cycle
Velocity formula - (CORRECT ANSWER)v=d/t
Which statement correctly describes the relationship between frequency and
wavelength? - (CORRECT ANSWER)As the frequency of a wave increases, the
wavelength decreases.
Which change will increase the speed of a sound wave traveling in a solid aluminum
rod? - (CORRECT ANSWER)increasing the temperature of the rod
Which equations represent the relationship between wavelength and frequency for a
sound wave? Check all that apply. - (CORRECT ANSWER)v = f
What best describes the speed of light waves in solids, liquids, and gases? -
(CORRECT ANSWER)the speed is fastest in gases
A transverse wave with a frequency of 125 Hz is traveling in the x-direction.
How long will it take this wave to travel 3000 m in the x-direction? - (CORRECT
ANSWER)2.4 seconds
What interaction causes the water to spread as they pass through the rock opening?
- (CORRECT ANSWER)diffraction
,the straw appears to "bend" because of __ (straw in glass of water) - (CORRECT
ANSWER)refraction
The two waves in the diagram are occupying the same place at the same time.At
what time will the interfering waves have an amplitude of zero? - (CORRECT
ANSWER)b
Which is the best example of the wave phenomenon called transmission? -
(CORRECT ANSWER)a street is seen through a window
if the energy of the wave becomes part of the internal energy of the object, then the
wave's energy is.. - (CORRECT ANSWER)transmitted
When a DVD is played, a laser light hits the surface of the disk and then returns to
the detector. - (CORRECT ANSWER)reflection
f a soundproof door is almost shut but still leaves a small opening, what wave
phenomenon is responsible for someone being able to hear sound from the room
while standing by the wall to the side of the opening? - (CORRECT
ANSWER)absorption
absorption - (CORRECT ANSWER)occurs when matter takes in energy from a wave
transmission - (CORRECT ANSWER)passing of a wave through an object
reflection - (CORRECT ANSWER)energy is absorbed on one side and reemitted on
the same side, bouncing of a wave off a surface or boundary between two media
Refraction - (CORRECT ANSWER)bends a wave as it passes through one medium
to another, can speed up or slow down the wave
diffraction - (CORRECT ANSWER)bends and scatter waves as they hit an object or
go through an opening, changes direction and spreads out energy
interference - (CORRECT ANSWER)occurs when two waves meet while traveling
along the same medium, when waves meet they can build on eachother or break
down eachother
constructive interference - (CORRECT ANSWER)occurs when two interfering waves
have a displacement in the same direction, resulting wave has a greater amplitude
and more energy
destructive wave - (CORRECT ANSWER)occurs when two interfering waves have a
displacement in the opposite direction, resulting wave has a lower amplitude and
less energy
What best describes the refraction of light rays? - (CORRECT ANSWER)light
bending when it passes through a lens
A lens focuses light at a single point called the focal point.
, What is responsible for the light rays coming together at the focal point? -
(CORRECT ANSWER)diffraction
Which diagram best shows the perceived sound wave heard by a woman after a
police car has passed her? - (CORRECT ANSWER)a
A sound wave travels through air. In which regions are air molecules the least
dense? - (CORRECT ANSWER)rarefractions
A student is performing an experiment comparing sound and light waves. The
student gathers the following data.
What conclusion does the student most likely make based on this data? -
(CORRECT ANSWER)light waves always travel the same speed; however, the
speed of sound is determined by the medium that it travels through.
A sound wave with a power of 8.8 × 10-4 W leaves a speaker and passes through
section A, which has an area of 5.0 m2.
What is the intensity of sound in this area? (Intensity = I = ) - (CORRECT
ANSWER)1.8X10^-4 w/m2
What best describes a sound wave? - (CORRECT ANSWER)longitudinal and
mechanical
Which is the best example of the wave phenomenon called transmission? -
(CORRECT ANSWER)A street is seen through a window.
two wave pulses move toward each other along a rope.
Which diagram shows the resulting wave when they cross at point X? - (CORRECT
ANSWER)b
Which best describes pitch? - (CORRECT ANSWER)the number of cycles per
second perceived by the human ear
What is the purpose of a rearview mirror in a car? - (CORRECT ANSWER)The
mirror allows the light to be reflected so the objects behind the car can be seen.
A flute plays a note with a frequency of 266 Hz. What is the speed of sound if the
wavelength is 1.3 m? - (CORRECT ANSWER)346 m/s
What best describes the relationship between wavelength and frequency in an
electromagnetic wave? - (CORRECT ANSWER)directly proportional
Sound travels slowest through what temperature of water? - (CORRECT
ANSWER)20 C
The diagram represents wavelengths of different colors of visible light that pass by in
a specific time period.Which color of light has the greatest frequency? (waves very
close to eachother) - (CORRECT ANSWER)Violet
A flute plays a note with a frequency of 266 Hz. What is the speed of sound if the
wavelength is 1.3 m? - (CORRECT ANSWER)346 m/s
A wave has a wavelength of 4.9 m and a velocity of 9.2 m/s. The medium through
which this wave is traveling is then heated to a greater temperature.
What must be true about the frequency of this wave? - (CORRECT ANSWER)The
frequency is equal to 1.9 Hz.
Which change will decrease the speed of a sound wave traveling through a gaseous
matter? - (CORRECT ANSWER)deceasing the temperature.
An FM radio station broadcasts at 9.23 × 107 Hz. Given that the radio waves travel
at 3.00 × 108 m/s, what is the wavelength of these waves? - (CORRECT ANSWER)
formula for wavelength - (CORRECT ANSWER)wavelength = propagation
speed/frequency; l = c / ¦
All parts of the electromagnetic spectrum travel at a speed of 3 × 108 m/s when
traveling through no medium. A "vacuum" means that there is no medium, such as a
tube without any air in it. Therefore, 3 × 108 m/s is said to be the speed of light in a
vacuum. If an electromagnetic wave's frequency doubles in a vacuum, what are the
other effects on the wave? - (CORRECT ANSWER)Wavelength divides in half and
speed stays the same.
What best describes the relationship between wavelength and frequency in an
electromagnetic wave? - (CORRECT ANSWER)directly proportional
The speed of sound through argon is shown.
If argon could exist as a solid, what would best represent the speed through solid
argon? - (CORRECT ANSWER)250 m/s
longitudinal waves - (CORRECT ANSWER)move parallel to the wave
transverse waves - (CORRECT ANSWER)waves move perpendicular
mechanical waves - (CORRECT ANSWER)waves that require a medium to travel
electromagnetic waves - (CORRECT ANSWER)A form of energy that can travel
through space. do not need a medium to carry energy
,wave - (CORRECT ANSWER)a disturbance that transfers energy from one place to
another
crest - (CORRECT ANSWER)highest point of a wave
trough - (CORRECT ANSWER)lowest point on a wave
wavelength - (CORRECT ANSWER)distance between two points
amplitude - (CORRECT ANSWER)height from the midpoint of a wave to the crest or
trough, the closer the particles in the wave the closer the higher the amplitude, the
farther the particles the lower the amplitude.
compression - (CORRECT ANSWER)The part of a longitudinal wave where the
particles are close together
rarefaction - (CORRECT ANSWER)a part in a longitudinal wave where the particles
are spread apart
Frequency - (CORRECT ANSWER)The number of complete waves that pass a
given point in a certain amount of time. cycles per second. 1/period
period - (CORRECT ANSWER)Amount of time it takes one wavelength to pass a
point. seconds per cycle
Velocity formula - (CORRECT ANSWER)v=d/t
Which statement correctly describes the relationship between frequency and
wavelength? - (CORRECT ANSWER)As the frequency of a wave increases, the
wavelength decreases.
Which change will increase the speed of a sound wave traveling in a solid aluminum
rod? - (CORRECT ANSWER)increasing the temperature of the rod
Which equations represent the relationship between wavelength and frequency for a
sound wave? Check all that apply. - (CORRECT ANSWER)v = f
What best describes the speed of light waves in solids, liquids, and gases? -
(CORRECT ANSWER)the speed is fastest in gases
A transverse wave with a frequency of 125 Hz is traveling in the x-direction.
How long will it take this wave to travel 3000 m in the x-direction? - (CORRECT
ANSWER)2.4 seconds
What interaction causes the water to spread as they pass through the rock opening?
- (CORRECT ANSWER)diffraction
,the straw appears to "bend" because of __ (straw in glass of water) - (CORRECT
ANSWER)refraction
The two waves in the diagram are occupying the same place at the same time.At
what time will the interfering waves have an amplitude of zero? - (CORRECT
ANSWER)b
Which is the best example of the wave phenomenon called transmission? -
(CORRECT ANSWER)a street is seen through a window
if the energy of the wave becomes part of the internal energy of the object, then the
wave's energy is.. - (CORRECT ANSWER)transmitted
When a DVD is played, a laser light hits the surface of the disk and then returns to
the detector. - (CORRECT ANSWER)reflection
f a soundproof door is almost shut but still leaves a small opening, what wave
phenomenon is responsible for someone being able to hear sound from the room
while standing by the wall to the side of the opening? - (CORRECT
ANSWER)absorption
absorption - (CORRECT ANSWER)occurs when matter takes in energy from a wave
transmission - (CORRECT ANSWER)passing of a wave through an object
reflection - (CORRECT ANSWER)energy is absorbed on one side and reemitted on
the same side, bouncing of a wave off a surface or boundary between two media
Refraction - (CORRECT ANSWER)bends a wave as it passes through one medium
to another, can speed up or slow down the wave
diffraction - (CORRECT ANSWER)bends and scatter waves as they hit an object or
go through an opening, changes direction and spreads out energy
interference - (CORRECT ANSWER)occurs when two waves meet while traveling
along the same medium, when waves meet they can build on eachother or break
down eachother
constructive interference - (CORRECT ANSWER)occurs when two interfering waves
have a displacement in the same direction, resulting wave has a greater amplitude
and more energy
destructive wave - (CORRECT ANSWER)occurs when two interfering waves have a
displacement in the opposite direction, resulting wave has a lower amplitude and
less energy
What best describes the refraction of light rays? - (CORRECT ANSWER)light
bending when it passes through a lens
A lens focuses light at a single point called the focal point.
, What is responsible for the light rays coming together at the focal point? -
(CORRECT ANSWER)diffraction
Which diagram best shows the perceived sound wave heard by a woman after a
police car has passed her? - (CORRECT ANSWER)a
A sound wave travels through air. In which regions are air molecules the least
dense? - (CORRECT ANSWER)rarefractions
A student is performing an experiment comparing sound and light waves. The
student gathers the following data.
What conclusion does the student most likely make based on this data? -
(CORRECT ANSWER)light waves always travel the same speed; however, the
speed of sound is determined by the medium that it travels through.
A sound wave with a power of 8.8 × 10-4 W leaves a speaker and passes through
section A, which has an area of 5.0 m2.
What is the intensity of sound in this area? (Intensity = I = ) - (CORRECT
ANSWER)1.8X10^-4 w/m2
What best describes a sound wave? - (CORRECT ANSWER)longitudinal and
mechanical
Which is the best example of the wave phenomenon called transmission? -
(CORRECT ANSWER)A street is seen through a window.
two wave pulses move toward each other along a rope.
Which diagram shows the resulting wave when they cross at point X? - (CORRECT
ANSWER)b
Which best describes pitch? - (CORRECT ANSWER)the number of cycles per
second perceived by the human ear
What is the purpose of a rearview mirror in a car? - (CORRECT ANSWER)The
mirror allows the light to be reflected so the objects behind the car can be seen.
A flute plays a note with a frequency of 266 Hz. What is the speed of sound if the
wavelength is 1.3 m? - (CORRECT ANSWER)346 m/s
What best describes the relationship between wavelength and frequency in an
electromagnetic wave? - (CORRECT ANSWER)directly proportional
