Light 1
Materials that allow all light to pass through
What are transparent materials?
What do we call materials that let some light through?
Translucent
What makes a pencil look broken when it is placed in a cup of water?
Refraction
True or False: Shadows always form on the opposite side of the light source.
True
True or False:
Light is an electromagnetic wave that can be seen
What is True
Light strikes some object and bounces back in a different direction
What is reflection?
Air, glass, and water are examples of what tpe of material (transparent, translucent or opaque)
What is transparent?
Which travels faster: light or sound?
Light
What type of path do light waves travel?
straight
What type of light source is a candle: natural or artificial?
artificial
What is the main natural source of light on Earth?
Sun
Light waves slow down and change direction (appearing bent) when passing from one transparent material to another.
What is refraction?
What forms when an object blocks light?
shadow
What is the name of the bouncing of light?
reflection
All the colors of the visible light spectrum. (In order)
What is red, orange, yellow, green, blue, (indigo), violet?
Materials that don't allow any light to pass through. Light is either reflected or absorbed.
What is opaque?
This tool separates white light into all colours of visible light.
What is a prism?
What type of energy helps us see?
Light
What part of the eye detects light?
Retina
What colour does an object appear if it absorbs all colours of light?
black
What colour is produced when all colours of light are combined?
White
What happens to light when it moves from air into water?
refraction
Objects that are able to be seen.
What is visible?
Light does not pass through or reflect from a material.
What is absorption?
True or False: Light always travels at the same speed in all mediums
What is False?