All About Light
What is light?
Electromagnetic energy
Give an example of natural light.
Sun, stars, firefly, lava, etc.
What is light absorbtion?
When light is stopped
Give an example of a transparent object.
Window, glass, etc.
What part of the body do we use to see light?
Eyes
Does light travel in straight or curved path?
Straight
Give an example of artificial light.
Flashlight, lightbulb, etc.
What is light reflection?
When light bounces/reflects
Give an example of a translucent object.
Blinds, frosted glass, etc.
How can you tell which way a shadow will go?
Opposite of the light source
How fast does light travel?
300,000 KMs per second
Define natural light.
Light made by nature
What is light refraction?
When light bends
How much light goes though a transparent object?
All the light
What part of the eye does light enter through?
Pupil
Name something that emits light and heat?
Sun, stars, fire, lava, etc.
Define artificial light.
Light made by humans
Give an example of something that absorbs light.
Paper, book, door, etc.
How much light goes though an opaque object?
No light
What part of the eye focuses the light?
Lens
What is light pollution?
Too much artificial light
What light source can be natural and artificial.
Fire
A non-light source that gives off light is ___ it. (Example: the moon)
Reflecting
How much light goes though a translucent object?
Some light
What part of the eye sends light signals to the brain?
Optic nerve