Waves Test
As the wavelength increases, the frequency
Decreases
Increases
Remains the same
Increases then decreases
Refraction occurs when a wave enters a new medium at an angle because
The frequency changes
The amplitude changes
The wave speed changes
None of the above
Waves transfer
Matter
Energy
Water
Particles
Waves that do not require a medium are
Longitudinal waves
Electromagnetic waves
Surface waves
Mechanical waves
Light waves travel fastest through
Air
Gas
A vaccuum
Water
When you place a pencil in a glass of water, the pencil appears bent because of
Diffraction
Refraction
Interference
Resonance
Which of the following describes how you can see the moon at night?
The sun's rays diffract around the moon.
The sun's rays refract through the moon.
The sun's rays reflect off the moon's surface.
The sun's rays are absorbed by the moon's surface.
What causes the apparent colors of the objects we see?
The speed of the light waves
the wavelengths of light the objects absorb
The degree to which the objects scatter light
The reflection of certain wavelength(s) of visible light
When white light shines on a black object,
The color black is reflected.
the color black is absorbed.
All colors are reflected.
All colors are absorbed.
When white light shines on a white object
The color white is reflected.
The color white is absorbed.
All colors are reflected.
All colors are absorbed.
Which of these is one way that sound waves differ from light waves?
Sound needs energy, not light
Light needs medium,not sound
Sound needs medium, not light
SD trnsmt matter,lT trnsmt energy
In this diagram, the light ray is being
Transmitted
Reflected
Absorbed
Refracted
What has happened to the light passing through the water to cause this difference?
Reflection
Absorption
Refraction
Compression
Once a vacuum is created in jar w/bell, the ringing sound is no longer heard. Why?
Glass stops any exit of sound
B/c outsd air prssr stops SD exit
Lack o/air in jar stops ringing
No air=no sound waves go to ear
In what ways do their wave characteristics differ?
If the distance from "A" to "B" increased, what would happen to the frequency?
The frequency would be higher.
The frequency would be lower.
The frequency would remain the same.
Wavelength
Crest
Rarefaction
Trough
Sound travels as a(n)
Longitudinal wave.
Transverse wave.
Transverse wave.
All of the above
The type of wave producing the disturbance in diagram II is:
Transverse
Circular
Electromagnetic
Longitudional
Which wave would MOST likely be energetic enough to damage living human cells?
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This change in pitch is because of a change in the sound wave's
Amplitude
Frequency
Reflection
Absorption
If the distance from A to B was increased, the pitch of the sound would
Higher
Lower
Louder
Softer
Which EM radiation do the lamps emit that is responsible for keeping the food warm?
Gamma rays
Radio Waves
Infrared Waves
Visible
The picture above shows an example of
Reflection
Refraction
Diffraction
Interference
Sound will travel the fastest at 20°C in
Air
Wood
Glass
It will all travel the same
Which statement about sound is true?
Air particles travel w/ SND waves.
SND waves can travel thru vacum
SND waves exist if they're heard
Air part. Vibrate o/path o/SND wave
The picture above shows an example of...
Reflection
Refraction
Diffraction
Interference
The picture above shows an example of...
Reflection
Refraction
Diffraction
Interference
Sound waves and ultraviolet light waves both share the property of being able to
Move through empty space.
Travel at 300,000,000 m/s.
Carry energy.
Travel through a wall.
An echo is an example of a sound wave
Refracting.
Reflecting.
Diffracting.
Absorbing.
In the picture above, which letter indicates the amplitude of the wave?
A
B
C
D
Using the picture above, which letter(s) indicates one wavelength?
A
B
C
D
Change in frequency of a sound as source moves close/far from the receiver is called
Refraction.
Doppler Effect.
The electromagnetic spectrum.
Amplification.
If the car is going to Shane and away from Ally he will hear the siren at
A lower pitch than Ally.
A higher pitch than Ally.
The same pitch as Ally.
The same pitch as the police officer driving the car.
Maddi is wearing a blue shirt. Which explains why we see her shirt as blue?
Absorbs blue light, reflects colors
Reflects blue light, absorbs colors
Refracts blue light, absorbs colors
Refracts blue light, absorbs colors
The car is going away from ally and to shane so Ally will hear the police siren at
A lower pitch because the frequency of the wave decreased.
A lower pitch because the frequency of the wave increased.
A higher pitch because the frequency of the wave decreased.
A higher pitch because the frequency of the wave increased.
Why does the human eye observe the different colors of a rainbow?
White light is broken down in the eye into its separate colors.
Different colors of light travel at different speeds to the eye.
The eye sees different wavelengths of light as different colors
The eye sees different colors of light in different locations of the eye.
Using the picture above, how many wavelengths are present?
2
4
6
8
Why do you see lightning off in the distance, then hear thunder a few seconds later?
Sound waves have less energy than light waves.
Sound waves do not travel long distances.
Light waves travel faster than sound waves.
Light waves last longer than sound waves
Region D illustrates a ____ of air particles.
Compression
Rarefaction
Refraction
Diffraction
Put the following electromagnetic waves in order from least energy to greatest energy.
Radio, infrared, gamma, x-ray, ultra-violet, visible light, microwave
Radio, microwave, infrared, visible light, ultra-violet, x-ray, gamma
X-ray, gamma, ultraviolet, visible light, microwave, infrared, radio
Gamma, x-ray, infrared, ultraviolet, visible light, microwave, x-ray
Which of the following electromagnetic waves are used in cell phone communication
Infrared
Microwave
Ultraviolet
Gamma
Constructive interference occurs when two waves:
Are traveling in the same direction.
Combine to make a wave w/a larger amplitude.
Change their speed and bend.
Combine to make a wave with a smaller amplitude.
Which sources will be detected?
Green laser and UV lamp
UV lamp and megaphone
Green laser and tuning fork
Tuning fork and megaphone
Which diagram shows the WL and AMP needed to cancel a wave thru destructive interference?
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