The Eye
The Ear
Sound
Light
Miscellaneous
200

This is the opening in the eye through which light enters.

Pupil

200

This is the large outer structure of the ear that gathers sound waves and funnels them inside the ear.

Pinna

200

What does supersonic mean?

Faster than the speed of sound

200

The most common type of color blindness is?

Red-Green Color Blindness

200

What Greek letter is used to represent wavelength in mathematical formulas?

Lambda

400

This is the colored portion of the eye.

Iris

400

This is the thin, flexible membrane that separates the outer ear from the middle ear.

eardrum (tymphanic membrane)

400

What is the unit used to measure the loudness of sound?

decibel

400

The item that creates light is referred to as the what?

Light source

400

What is the formula for finding the speed of a wave?

v = f x lambda

600

This is the light sensitive lining of the back of the eye that transforms light into electrical impulses.

Retina

600

This is the spiral-shaped organ in the inner ear that transforms sound waves to electrical impulses.

Cochlea

600

The speed of sound is approximately

343 m/s

600

A substance or item that allows almost all light to pass through is said to be what?

Transparent

600

The frequency of a wave is measured in what?

Hertz

800

These are the two types of specialized cells that make up the retina.

Rods and Cones

800

These are the 3 tiny bones in the middle ear.

malleus, stapes, incus

800

What is a group of organized sounds referred to as?

Music

800

This is a substance that gives color to other materials.

Pigment

800

What are the 2 main types of lenses?

Convex and concave

1000

The _?_ cells are sensitive to black and white and work in low light; the _?_ cells are sensitive to color and must have a certain amount of light to work.

Rods; cones

1000

These are the tiny structures that can get infected and cause you to lose your balance.

Semicircular canals

1000

The change in the loudness of a sound as a result of the movement of the source of the sound to an observer standing still is called what?

Doppler Effect

1000

Any reflective surface that bounces off light and produces either a real image or a virtual image can be called a what?

mirror

1000

What decibel level is considered to be the the threshold of pain for the human ear?

84 decibels

M
e
n
u