light travels
How does light travel?
Light travels in straight lines as magnetic waves and tiny energys called photons. These straight lines are called Rays.
What is the job of the lens in the eye?
The lens job is to bend the incoming light to project a clear and sharp image into the retina.
How do you make a mirror?
A metal coating placed on the back of the back of the glass and then paint is added to it to protect the mirror.
What is the difference between a laser and a flashlight?
Lasers are stronger than a regular flashlight for flashlights are LED because the rays are more focused.
What are three things that are opaque?
any solid surface or object that does not let light move through it (banana, dice, 8 ball)
Which travels faster: the speed of light or the speed of sound?
speed of light
What does the cornea do in the eye?
It bends incoming light and turns it into electrial impulses that travel through the optic nerve to the brain.
When you shine a light on a mirror at 45 degrees angle where do the refractions go?
The refraction of the light will shoot back out as a 45 degrees refraction.
When shining lasers in the rain if you shine it at a rain drop does it look the color of the laser?
Yes, when a laser hits a raindrop, the light scattered or reflected from that drop looks the exact color of the laser.
What does Lux mean?
It's how light is measured.
Can light travel through a vacuum (not the picking up dust kind?)
yes it moves from our sun to throughout the Milky Way
Daily Double:
Where is the lens on your eyeball?
Behind the Iris.
It is the condition that light will refract at the same angle that it hits a solid shiny surface.
Does the glass in a prism Reflect or Refract? Why?
Refract because it changes the way of the light.
What is it called when light shifts when it passes through something?
Refracting
Can light travel through an opaque object?
No
Explain how some people get near sighted, then it turns into far as they get older.
Your eye continue to grow and change. As it does it may change shape. The focal point from your lens may now hit in a different place therefor, missing the optic nerve. This will cause a change in vision.
How does a two way mirror work?
Some light is reflected back at the person in the light room. Some of the light is transmitted through small openings in the mirroring film. This permits a person in a dark room to view the lighted room without being seen. When a light is turned on in the dark from, both sides can see one another.
What happens when light travels through a cracked prism?
The light bends and twists
If you wanted to make a laser tag square, is it possible to make a perfect square? How?
Position the mirrors at exactly right angles of refraction to the laser beam.
How does light travel through water?
The water makes the light bend and slow down.
What is Glaucoma?
Glaucoma is an eye illness causing damage to the optic nerve due to an increase in pressure within the eye.
What makes a car mirror appear farther away?
Because car side mirrors are convex, which produces smaller images and gives drivers a wider field of view.
If a prism is wet, will we still see through it the same? Why.
No, it will be distorted because the water will bend the light rays.
What is the difference between reflect and refract?
The difference is that reflecting is when light bounces off a surface and stays in the same material. When refraction is when a light goes through a material into a new material and bends it.