light
What’s I=R
Incidence=reflection
What is the eye connected to?
The brain
what’s the outside ear called?
Pinna
What type of wave is the sound?
Longitudinal
What is the largest planet in our solar system?
Jupiter
What happens when the light ray slows down?
It bends towards the normal
What part of the eye controls the amount of light entering it?
Iris
What part of the ear vibrates when sound waves hit it?
eardrum
How does sound travel through air?
Compression and refraction
How many bones are there in an adult body?
206
What type of wave is the light wave?
Transverse
What part of the eye focuses light onto the retina?
Lens
What part of the ear converts sound waves into electrical signals?
Cochlea
How can sound travel better through air better than solids
the molecules are closer together and more tightly bonded in solids
What are the 3 states of matter?
Solid liquid gas
True or false: the angle of the reflected ray in the mirror is the same as the incidence ray
True
What is the clear, curved part at the front of the eye that helps us focus?
Cornea
What tiny bones in the ear amplify sound?
Hammer, anvil, stirrup
Why can’t sound travel through space?
There are no particles
What is the process where plants use sunlight?
Photosynthesis
What is the approximate speed of light? (In m/s)
Around 300000000 m/s
What is the light-sensitive layer at the back of the eye?
Retina
How does the cochlea help is detect different frequencies of sound?
Different parts of the the cochlea vibrate depending on the frequency of the sound.
What unit is used to measure loudness of sound?
Decibels
What is the chemical symbol for gold?
Au