Transparent, Opaque, Translucent
What is one example of a transparent object?
Glass
What is a photon?
A unit of light
What is reflection?
Light bouncing off an object
Does light travel faster through air or water?
Air
What is our brightest light source?
The sun
What does transparent mean?
Light passes through clearly
What is the definition of medium?
Material that light passes through.
Name an item that uses refraction.
Glasses
It is denser than air.
Why does aluminum foil need to be smooth to reflect light clearly?
A scattered surface scatters the light in different directions
What does Translucent mean?
What line of direction does light travel?
Straight line
Name another item that uses refraction.
Cameras
Why does black paper absorb light?
It is an opaque material.
Light is a form of what?
Light energy
What does opaque mean?
Blocks light completley.
What is the speed of light in space?
186,000 miles per second.
Name another item that uses refraction.
Telescopes
Light source
photosynthesis
Name three examples of opaque objects:
Wood, walls, humans
Describe refraction
Light bending as it moves through different mediums.
Light travels through air, then water first.
Name a light source:
How do plants make their own food?
Plants use sunlight to transform water and CO2 into to sugar and oxygen