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WorksheetsUnit 6 Review
Total questions: 69
Worksheet time: 42mins
A wave is best described as:
Matter moving from one place to another
A disturbance that carries energy through matter or space
Particles traveling through empty space
Energy that only moves through solids
Waves transfer energy from one location to another without transferring matter.
True
False
A ________ is a physical environment in which phenomena occur.
medium
wave
vibration
disturbance
Mechanical waves require a medium to travel through.
True
False
Which of the following is an example of a mechanical wave?
Radio waves
Light waves
Sound waves
X-rays
Electromagnetic waves:
Require a solid medium to travel
Can only travel through liquids
Do not require a medium to travel
Cannot travel through space
Match each wave type with the correct example.
Mechanical wave
Sound wave traveling through air
Electromagnetic wave
Light wave from a flashlight
Surface wave
Ocean wave at the boundary of water and air
Transverse wave
Wave on a rope being shaken up and down
Most waves are caused by:
Stationary objects
Vibrating objects
Temperature changes
Gravity
The sound waves produced by a singer are caused by vibrating ________ ________.
vocal cords
air molecules
sound boxes
chest cavities
In a transverse wave, particles of the medium move:
Parallel to the direction the wave travels
Perpendicular to the direction the wave travels
In circles
Randomly in all directions
In a longitudinal wave, particles vibrate parallel to the direction of wave motion.
True
False
Categorize each of the following as either a TRANSVERSE wave or a LONGITUDINAL wave. Items: Light wave; Sound wave in air; Wave on a guitar string; Compression wave in a spring. Categories: Transverse; Longitudinal.
Light wave
Transverse
Sound wave in air
Longitudinal
Wave on a guitar string
Transverse
Compression wave in a spring
Longitudinal
The highest point of a transverse wave is called the:
Trough
Crest
Compression
Amplitude
The lowest point of a transverse wave is called a trough.
True
False
In a longitudinal wave, the crowded areas are called:
Crests
Troughs
Compressions
Rarefactions
The stretched-out areas of a longitudinal wave are called ________.
compressions
rarefactions
crests
troughs
Categorize each wave feature with the wave type where it is found.
Crests and troughs
Compressions and rarefactions
Particles move perpendicular to wave direction
Particles move parallel to wave direction
Surface waves occur at the boundary between two different mediums.
True
False
In a surface wave, particles move:
Only perpendicular to wave direction
Only parallel to wave direction
Both perpendicular and parallel to wave direction
In straight lines only
Which is an example of a surface wave?
Sound in air
Light in space
Ocean waves at the water-air boundary
Compression in a spring
Electromagnetic waves may be caused by vibrating ________ particles.
charged
neutral
stationary
heavy
When a wave travels through a medium, the medium itself moves along with the wave.
True
False
As sound waves travel outward from a source, the energy:
Stays concentrated in one area
Spreads out over a larger volume
Disappears completely
Increases in intensity
Amplitude and wavelength are measurements of:
Time
Distance
Speed
Frequency
Period and frequency are measurements based on time.
True
False
Amplitude is defined as:
The distance from crest to trough
The distance from one crest to the next crest
The maximum distance particles vibrate from their rest position
The number of waves per second
Amplitude is measured in:
Hertz (Hz)
Meters (m)
Seconds (s)
Meters per second (m/s)
A wave with larger amplitude carries ________ energy than a wave with smaller amplitude.
more
less
the same
no
A wave with shorter wavelength carries more energy than a wave with longer wavelength.
True
False
Match each wave property with what it measures.
Amplitude
Maximum distance particles vibrate from rest position
Wavelength
Distance from one point on a wave to an identical point on the next wave
Period
Time for one complete wave cycle
Frequency
Number of waves produced per unit time
Wave speed
How fast the wave travels through a medium
Wavelength is represented by the symbol:
A
f
T
λ
For a transverse wave, wavelength can be measured from crest to crest.
True
False
The period of a wave is:
The number of waves per second
The time for one complete wave cycle
The maximum height of the wave
The distance between two crests
Period is represented by the symbol ________ and measured in ________.
f, hertz
T, seconds
λ, meters
v, meters per second
Frequency is defined as the number of ________ or ________ per unit of time.
cycles, vibrations
meters, seconds
crests, troughs
particles, mediums
Frequency is measured in:
Meters (m)
Seconds (s)
Hertz (Hz)
Meters per second (m/s)
The relationship between frequency and period is:
f = T
f = 1/T
f = T x λ
f = v/T
If a wave has a period of 0.5 seconds, what is its frequency?
0.5 Hz
1 Hz
2 Hz
4 Hz
A wave with higher frequency has a longer period.
True
False
The speed of a wave equals frequency multiplied by wavelength.
True
False
Which equation correctly represents wave speed?
v = f + λ
v = f x λ
v = f/λ
v = λ/f
A wave has a frequency of 10 Hz and a wavelength of 2 meters. What is the wave speed?
5 m/s
12 m/s
20 m/s
0.2 m/s
A wave travels at 300 m/s with a frequency of 60 Hz. What is its wavelength?
0.2 m
5 m
360 m
18,000 m
If 6 waves pass a point in 2 seconds, what is the frequency?
2 Hz
3 Hz
6 Hz
12 Hz
Match each symbol with what it represents.
v
Wave speed
f
Frequency
λ
Wavelength
T
Period
In general, wave speed is greatest in ________ and least in ________.
liquids, gases
solids, gases
gases, solids
gases, liquids
In a given medium, the speed of waves changes constantly.
True
False
Light has a finite (limited) speed.
True
False
The pitch of a sound is determined by:
The amplitude of the sound wave
The speed of the sound wave
The frequency of the sound wave
The medium through which sound travels
A higher-pitched sound is caused by sound waves of ________ frequency.
higher
lower
constant
zero
The Doppler effect is:
The change in wave speed as temperature changes
An observed change in frequency when the source or observer is moving
The bending of waves around corners
The bouncing of waves off surfaces
The Doppler effect occurs only for sound waves.
True
False
When an ambulance with its siren on approaches you, you hear:
A lower pitch than the actual siren
A higher pitch than the actual siren
The same pitch as when the ambulance is stationary
No sound at all
For each scenario, determine if the observed frequency would be HIGHER, LOWER, or THE SAME as the actual frequency.
A police car with siren moves toward you
A train with horn moves away from you
A stationary alarm sounds
A race car passes you (after it has passed)
When a wave bounces back after hitting a surface, this is called:
Reflection
Refraction
Diffraction
Interference
Reflection occurs when a wave meets a boundary.
True
False
Which is an example of wave reflection?
Light bouncing off a mirror
Sound bending around a corner
Light bending through a prism
Two waves combining
Diffraction is the ________ of a wave when it encounters an obstacle or opening.
speeding up
slowing down
bending
stopping
Diffraction explains why you can hear someone talking around a corner even though you cannot see them.
True
False
Refraction occurs when:
A wave bounces off a surface
A wave bends as it passes from one medium to another at an angle
Two waves meet and combine
A wave stops moving
All waves are refracted when they pass from one medium to another at an angle.
True
False
Match each wave behavior with its description.
Reflection
Wave bounces back when hitting a surface
Diffraction
Wave bends around an obstacle or through an opening
Refraction
Wave bends when passing between two substances with different speeds
Interference
Two or more waves combine to form a single wave
When two or more waves combine to produce a single new wave, this is called:
Reflection
Diffraction
Interference
Refraction
Constructive interference occurs when waves combine to produce a wave with _______ amplitude.
increased
decreased
zero
unchanged
Destructive interference decreases amplitude.
True
False
If two waves meet and one has a crest while the other has a trough at the same location, what type of interference occurs?
Constructive interference
Destructive interference
No interference
Reflection
Categorize each scenario as CONSTRUCTIVE or DESTRUCTIVE interference.
Two crests meet at the same point
A crest meets a trough of equal amplitude
Two troughs meet at the same point
Wave peaks align perfectly
A standing wave is a pattern of vibration that simulates a wave that is standing still.
True
False
In a standing wave:
Nodes are points of maximum vibration
Antinodes are points of no vibration
Nodes are points of no vibration and antinodes are points of maximum vibration
There are no nodes or antinodes
