Light
Is light a wave?
yes
What do we call the back-and-forth motions that create sound?
Vibrations
What is the cornea?
The cornea is the transparent, dome-shaped outer layer at the front of the eye.
What part of the ear is the visible outer part of the ear that is used to collect sound waves?
Pinna
What is a type of sound wave that needs a medium to travel through?
Mechanical
What is transmission (in light)?
When light travels through something.
What type of wave is sound?
Mechanical
What part of the eye controls the amount of light that enters the eye by changing the size of the pupil?
Iris
What structure vibrates when sound waves hit it?
Eardrum
What are vibrations?
When something moves back and forth to create sound
What happens when a light is shone on a one way mirror?
It gets transmitted and reflected.
What is the property of sound that determines how high or low a sound is?
Pitch/frequency
What part of the eye contains the light-sensitive cells that detect images?
The Retina
What are the three tiny bones behind the eardrum called?
What is frequency?
Highness or lowness of a sound
What is a focal point?
The point at which the light converges after being refracted by a lens.
What phenomenon causes sound to change speed and direction when traveling through different media?
Refraction
What do we call the point on the retina where no photoreceptors exist, causing a small gap in our vision?
Blindspots
What is the part of the ear that is filled with fluid and shaped like a snail called?
Cochlea
What is refraction (in light)?
When light rays bend while traveling through different media.
What type of lens curves outward and causes light to spread apart?
A convex lens
What medical technology uses high-frequency sound waves to see inside the body?
Ultrasound
What is the scientific term for the process where the lens changes shape to focus on objects at different distances?
Accommodation
What tube connects from the middle ear to the throat and helps to equalize air pressure?
Eustachian Tube.
What is accommodation (in light)?
The changing of the curvature of the lens to focus on objects closer and farther away.