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WorksheetsLight and Optics Checkup
Total questions: 64
Worksheet time: 1hrs 4mins
What is the law of reflection?
The angle of incidence is greater than the angle of reflection.
The angle of reflection is perpendicular to the angle of incidence.
The angle of reflection is less than the angle of incidence.
The angle of incidence is equal to the angle of reflection.
Define refraction of light.
The reflection of light off a surface
The bending of light as it passes from one medium to another.
The absorption of light by a medium
The emission of light from a source
Model used to explain the characteristics and behavior of light energy. it describes light as energy in the form of waves. the different colors of light have different wavelengths. waves with shorter wavelengths have higher energy than those with longer wavelengths
Kepler's Model
Einstein's Theory of Relativity
Hawking's Wormhole Theory
Wave Model of light
The production of light by living organisms is
bioluminescence
evolution
adaptation
chemistry
Light (a) off shiny surfaces when it is reflected. Light (b) as it passes through materials when it is refracted. We know light passes through a material when we can (c) through it.
Light travels in (a) lines.
Which color has the shortest wavelength?
Red
Orange
Green
Violet
When light passes from one medium to a denser medium _________.
it is bent towards the normal.
it always lies along the normal.
it is unaffected.
it is bent away from the normal.
Which is an example of a natural light source?
firefly
glow sticks
sun
lightbulb
An example of an incandescent light source is
stars
fire
glow in the dark stickers
jelly fish
Light is a form of
food
energy
particles
transformation
Where is the "normal"?
Where is the "angle of incidence"?
Where is the "reflected ray"?
cornea
sclera
lens
lens
optic nerve
pupil
Name structure A
Pupil
Iris
Cornea
Retina
What will happen to your pupils if you are in a really bright room?
They will contract
They will expand
They will burst into flames
They will stay the same size
What structure of the eye controls the size of the pupils?
Ciliary Muscles
Iris
Lens
Retina
What is the function of the Lens?
Lining of the back of the eye that contains light receptor cells.
Regulates how much light enters the eye
Tough, transparent, protective coating that bends light as it enters the eye
Focuses light onto the retina
What happens to your eyes if you are in a dark room?
Your Iris will narrow to allow more light in
Your pupils will widen to let in more light
Your pupils will narrow to let in more light
Which structure is simply a hole that changes in size based on the amount of light present?
Lens
Pupil
Iris
Cornea
What structure is responsible for carrying sensory impulses from the eye to the brain?
Retina
Iris
Optic Nerve
Rods & Cones
Which structure supports eyeball, helps keep its shape, and provides attachment for movement muscles?
Pupil
Sclera
Iris
Optic Nerve
Which structure carries the electrical signals from retina to the brain?
Optic Nerve
Sclera
Blind Spot
Pupil
Which receptors at the back of the eye are color sensitive?
retina
rods
cones
lens
Which receptors at the back of the eye are black, white, and gray sensitive?
retina
rods
cones
lens
Which structure protects the eye?
lens
cornea
iris
pupil
Which structure is your eye color?
lens
cornea
iris
pupil
Which structure is colored yellow and number 6?
optic nerve
retina
iris
sclera
Which structure is colored red and number 7?
optic nerve
retina
iris
sclera
True or False: You need light to be able to see.
True
False
Sometimes
What might happen if the lens of your eye became damaged?
Your eyes wouldn't be able to focus properly.
You wouldn't be able to see in color.
You wouldn't be able to see at night.
All the images you saw would be upside-down.
If you were to accidentally scratch the outermost part of your eye, which part would you damage?
The cornea
The lens
The retina
The pupil
What do the lens and cornea have in common?
They both send messages to the brain.
They can both change shape.
They both contain photoreceptive cells.
They both bend light into a focused beam.
Light is a form of
food
energy
particles
transformation
What type of lens creates the image seen in the eyeglasses?
convex
concave
reflection
plane
A lens that is thicker in the middle than on the outside is called ___.
diverging
concave
convex
achromatic
What do all optical technologies need?
Light
Something to focus
A machine
A magnifying glass
What is an opaque material?
To 'soak up' or 'take in'
Material that does not let light through
Something that forms an image of an object
The hole in the front of the eye
Which one of the following is not true for human eye?
the picture that forms on retina is upside down.
the pupil size changes due change in amount of light.
the iris is the transparent part of the eye.
The light energy transferred by sensor into electrical signals is stored on _________________ in a digital camera.
shutter
aperture
memory card
Which one of the following is true both for human eye and digital camera?
the sensor detects light.
the aperture controls the amount of light that enters.
the lens focuses the light.
Which colour light is formed when all three primary colours mix?
yellow
purple
white
What are the three primary colours?
red, purple, yellow
red, green, blue
red, yellow, black
What is the function of sensor in a digital camera?
stops the light hitting it.
detects light falling on it.
adjusts the amount of light that enters into camera.
