Sound
Sound ll
Light
Light II
Light and Sound
Waves
100
The decibel is used to measure a sound's
A. Pitch
B. Frequency
C. Wavelength
B. Frequency
100
What are echoes?
A. Vibrations of sound
B. Reflections of sound
C. Weakening of sound
B. Reflections of sound
100
Light travels in _____ waves.
A. Thermal
B. Electromagnetic
C. Radiative
B. Electromagnetic
100
Electromagnetic wave with the smallest wavelength and the highest frequency
A. Gamma ray waves
B. Microwaves
C. Ultraviolet Wave
A. Gamma ray waves
100
Sound cannot be heard where?
A. Vacuum
B. Underwater
C. In gasses
A. Vacuum
100
The highest part of a wave?
Crest
200
A loud sound is produced by a sound wave with a ___ amplitude.
A. Low
B. High
B. High
200
longitudinal wave
200
Color depends on the ____ of visible light.
A. Speed
B. Loudness
B. Wavelength
B. Wavelength
200
Waves used by cell phones
A. Ultraviolet wave
B. Microwaves
C. Radio Waves
B. Microwaves
200
light waves travel fastest in _____.
A. Solids
B. Liquid
C. Gases
C. Gases
200
Transverse waves travel
at right angles to the direction wave's motion
300
A sound wave are produce by ____ in matter.
A. Echoes
B. Vibrations
C. Explosions
B. Vibrations
300
transverse wave
300
When you see an object that is not a light source, you are seeing light waves _____ by the object.
A. Reflected
B. Refracted
C. Absorbed
A. Reflected
300
Electromagnetic wave that are responsible for the colors we see
A. Ultraviolet waves
B. Infrared Waves
C. Visible light waves
C. Visible light waves
300
A _____ system locates underwater objects by sending out sound waves.
A. echo
b. sonar
b. sonar
300
A compression is when particles of a longitudinal wave are what?
Spaced close together
400
A sound wave is a series of compressions and
A. Echoes
B. Troughs
C. Rarefactions
C. Rarefactions
400
Loudness of sound is determined by
amplitude
400
If a material allows most light that strikes it to pass through but forms a blurry image, then the material is
A. Opaque
B. Translucent
C. Transparent
B. Translucent
400
The distance between one crest and another
wavelength
400
Sound waves travel fastest in _____.
A. Solids
B. Liquids
C. Gases
A. Solids
400
The time it takes for a complete wave to pass one point.
Period
500
A sound wave with a greater frequency have a higher
A. Pitch
B. Amplitude
C. Decibel
A. Pitch
500
Why does sound travel faster in metal than air?
The atoms in metals are closer together
500
The change in direction of light waves when they pass through one material to another is
A. Refraction
B. Absorption
C. Reflection
a. Refraction
500
Which of the eyes cells allows you to see color?
A. Rod cells
B. Cone cells
B. Cone cells
500
What color will a blue book appear if there are no cones in the retina
grey
500
A wave that travels along the surface separating two media.
Surface wave