The human eye quiz
The blank describes light traveling as a wave
Wave model of light
White light is made up of waves having different
Wavelengths And frequencies
A blank refracts light into different colors
Prism
What is the function of the vitreous humour?
A gel like substance responsible for keeping the retina in place.
Sir Isaac Newton demonstrated that blank is a property of visible light
Colour
What is the function of the Iris?
A ring of muscle second shows the size of the pupil.
What is the function of the pupil?
A small hole that functions to control the amount of light that enters the eye.
What is the function of the choroid?
A thin black membrane the choroid forms the second layer of the eyeball.
Blackshirt appears black because all the colors are
Absorbed
The region of the eye where the optic nerve enters the eye has no receptors . The region is known as your
Blind spot
Which has a higher frequency yellow light or blue light
Blue
What is the ray model of light
Can because to understand how light moves in straight lines reflects mirrors and refracts through lenses
From near objects the muscles surrounding the lens ....
Contract Causing less tension on the lens which causes the lens to become thicker
Light travels from the surface of an object and passes through the transparent tissue you at the front of the eye called the
Cornea
The cornea been the light by refracting incoming light and causes the light rays to converge most of the focusing on the light is done by the
Cornea
Explain why all colors affect at different angles
Each color has a different wavelength therefore making them refract at different angles
The light rays converted to a single point known as the
Focal point
What is the function of the lens?
Focuses light onto the retina
The number of cycles per second is the
Frequency
Describe what Newton discovered the white light and the different colors of the spectrum
He discovered that white light is the result of all the colors mixed together in that different colors are present in already and white light
Frequency is measured in
Hertz (Hz)
Explain how you can cause light separated by a prism two combined
If two more prisons were added it would recombined the colors producing light again
What is the benefit of discrbing light as a ray
In the rain model light is simply represented as a straight line or rate that shows the direction of light waves traveling
Light rays always travel in straight lines. Sauce light rays from the very bottom of not object to focus at the top section of the retina light rays from the very top of an object will become together at the bottom of the retina. This image will cause it to be
Inverted
What part of your eye moves when you cover it with your hand?
Iris
Energy is
Is the capacity to apply a force over a distance
What is the function of the cornea?
It Works as a lens and functions to protect the eye.
Why does a violet dress appear to be violet in the sunlight
It's absorbing every color but it's reflecting Violet
What is the benefit describing light as a Wave
Light has properties that are best describes all using ways such as the use of wavelength and frequency to account for the different colors of light
Which color in the visible spectrum has the shortest wavelength
Purple
How can refraction be used to explain the formation of mirages
Like bend as it travels through different densities of air there fraction of light through Air can result in a mirage
What is the function of the retina
Made of light sensitive cells in the retina is responsible for receiving light.
You can remember the order of the seven colors of the rainbow by using the abbreviation
ROY G BIV
How are rainbows formedEd?
Rainbows happen when the beams of sunlight separate into the colors we see in the rainbows by entering a raindrop
What color is in the visible spectrum has the longest wavelength
Red
List three colors I can combine to produce all colors of the rainbow
Red blue and green
A fire engine appears to be read because the color red is
Reflected
The bending are changing direction of a wave as it passes from one material to another is called
Refraction
For distant objects the muscles surrounding the lens
Relax Causing increased tension on the lens which causes the lens to become thinner
What is the function of the suspensory ligament?
Responsible for connecting the lens to the ciliary body.
What is the function of the optic nerve?
Responsible for transmitting information from the retina to the brain.
Explain why images form on some surfaces and not on others
Smooth surfaces reflect all light uniformly rough surfaces appear to reflect light randomly
The seven color categories of visible light on together known as the visible
Spectrum
How does your faction produce the visible spectrum
The bends or changes the direction of the wave as it passes through one material to another
What is the difference between reflection and Refraction
The difference between reflection and refraction is that in reflection waves bounce off another surface well in refractions those waves do not bounce back but pass through the surface which bends them and changes the speed of the wave
When white light is refracted through a prism different colors emerge where do the different colors come from
The different colors come from the white light after you hit it has been refracted for example when the white light gets refracted and then reflect back it separate from each other because the white light is all the colors mixed together
Wavelength is
The distance over which the wave repeats
Amplitude is
The height of a wave crest or depth of the wave trough as measured from its rest is position.
Crest is
The highest point of a wave
What happens when light strikes different objects
The light might be absorbed reflected and transmitted
Trough is
The lowest point of a wave
What is the function of the cillary body muscle?
The muscles connected to the lens by the suspensory ligament that controls the shape of the lens.
What is the function of blind spot?
The point where the optic nerve connect to the retina
What is the function of the aqueous humour?
The thin watery fluid that fills the space between the cornea and Iris
What is the wave model of light
The wave model of light of like pictures light traveling as a way
What is the function of the sclera?
This is the white coating on the outside of the eyeball commonly known as the white of the eye.
Blank light is light that you can see
Visible
When does light refract or bend
When it goes through a material to another
Density plays a role in the refraction of light explain how the density of matter causes like to be refracted
When light Rays move from air into glass they slow down and change direction because the glass is denser than air where they can travel faster they will change direction again
Describe the role of reflection introducing the colors we see
When sunlight strikes colored clothing some colors are reflected well others are absorbed only reflected reflected colors can be seen
When pass-through a second prism the blank light is combined to form WhiteLight once again
White
Why is the image inverted?
Your brain will into print the signal some perceive the image us up right
