Light
What speed does light travel?
300,000 km/s
Sound is created when something...
Vibrates or shakes back and forth.
Where does light enter the eye?
The pupil
The part of the ear that funnels sound.
The outer part
Light can do 3 things. What are they?
Reflect, absorb, refract.
What does ROYGBIV stand for?
Red, orange, yellow, green, blue, indigo, violet
What do vibrations create?
Sound waves
The lens focuses light unto which part of the eye?
The retina
The part of the ear that contains fluid and nerve endings.
The cochlea
Refraction is when...
Light passes through an object and bends.
How does light travel?
In a straight line.
What is pitch used to describe?
How high or low a sound is.
Which nerve sends signals from the eye to the brain?
The optic nerve
What is the part of the ear that vibrates?
Sound can do 3 things, what are they?
Reflect, absorb, and modify.
What type of energy is light?
Electromagnetic energy
A waves amplitude is used to describe...
How loud a sound is.
The retina is located where?
The back of the eyeball.
What happens to the bones in the ear?
They move.
What is echolocation?
Using sound waves to determine location.
The sun is what kind of light source?
Natural
Soft materials are generally good at what?
Absorbing sound
The coloured part of the eye is called what?
The iris.
Nerve endings send what to the brain?
Messages or electrical signals.
What decibal level causes noise induced hearing loss?
85 dc