Sound
The decibel is used to measure a sound's
A. Pitch
B. Frequency
C. Wavelength
B. Frequency
This collects and channels sound waves into the ear
A. Eardrum
B. Cochlea
C. Outer ear (Pinna)
C. Outer ear (Pinna)
Light travels in _____ waves.
A. Thermal
B. Electromagnetic
C. Radiative
B. Electromagnetic
Electromagnetic wave with the smallest wavelength and the highest frequency
A. Gamma ray waves
B. Microwaves
C. Ultraviolet Wave
A. Gamma ray waves
The highest part of a wave?
Crest
A loud sound is produced by a sound wave with a ___ amplitude.
A. Low
B. High
B. High
Which of these three is the first to receive sound waves.
A. Hammer
B. Anvil
C. Stirrup
A.Hammer
Color depends on the ____ of visible light.
A. Speed
B. Loudness
B. Wavelength
B. Wavelength
Waves used by cell phones
A. Ultraviolet wave
B. Microwaves
C. Radio Waves
B. Microwaves
The distance between one crest and another
Wavelength
A sound wave is produced by ____ in the matter.
A. Echoes
B. Vibrations
C. Explosions
B. Vibrations
Which part of the ear amplifies sound?
A. Inner Ear
B. Middle Ear
C. Outer Ear
B. Middle ear
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
Electromagnetic wave that are responsible for the colors we see
A. Ultraviolet waves
B. Infrared Waves
C. Visible light waves
C. Visible light waves
A compression is when particles of a longitudinal wave are what?
Spaced close together
A sound wave is a series of compressions and
A. Echoes
B. Troughs
C. Rarefactions
C. Rarefactions
This converts vibrations to nerve signals
A. Anvil
B. Pinna
C. Cochlea
C. Cochlea
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
The part of the eye which contracts and relaxes to allow more light to enter?
A. Pupil
B. Cornea
C. Lens
A. Pupil
The time it takes for a complete wave to pass one point in space
Period
A sound wave with a greater frequency have a higher
A. Pitch
B. Amplitude
C. Decibel
A. Pitch
What are echoes?
A. Vibrations of sound
B. Reflections of sound
C. Weakening of sound
B. Reflections of sound
The change in direction of light waves when they pass through one material to another is
A. Refraction
B. Absorption
C. Reflection
a. Refraction
Which of the eyes cells allows you to see color?
A. Rod cells
B. Cone cells
B. Cone cells
A wave that travels along the surface separating two media.
Surface wave