Waves
This is what all waves transfer.
Energy
Light belongs to this type of wave.
Transverse
All sounds are produced by this.
Vibrations
Light can travel through this even when no matter is present.
A vacuum
This part controls how much light enters the eye.
Iris
The highest point on a transverse wave.
Crest
Sound belongs to this type of wave.
Longitudinal
Sound cannot travel through this.
A vacuum
A material like frosted glass is described using this term.
Translucent
This part focuses light onto the retina.
Lens
The distance between two consecutive crests.
Wavelength
In this type of wave, particles move at right angles to the direction of energy transfer.
Transverse wave
This determines the pitch of a sound.
Frequency
This occurs when light bounces off a surface.
Reflection
This light-sensitive layer detects images.
Retina
This wave property increases when a rope is shaken harder.
Amplitude
In a slinky, compressions and rarefactions are produced by this type of wave.
Longitudinal wave
This determines the loudness of a sound.
Amplitude
A straw appearing bent in water is caused by this effect.
Refraction
Signals travel to the brain through this structure.
Optic nerve
If wavelength increases but wave speed stays the same, this wave property decreases.
Frequency
Water waves are unusual because they contain both of these types of motion.
Transverse and longitudinal
We see lightning before hearing thunder because this travels much faster.
Light
The law of reflection states these two angles are equal.
Angle of incidence and angle of reflection
Name the three eye parts involved in this pathway: light enters, is focused, and then detected.
Iris/Pupil → Lens → Retina