Vocabulary
What do you call objects that do not allow any light to pass through them?
Opaque objects
What makes a pencil look broken when it is placed in a cup of water?
Refraction
Why do you see lightning before you hear thunder?
Light travels faster than sound.
What do you call objects that allow some light to pass through them?
Translucent objects
Explain an example of when light reflects and an example of when light refracts.
Reflect- mirror, reflectors, etc. Refract- straw in water, arm in pool, etc.
What is the term for when light waves bend when passing from one medium to another?
Refraction
Light can travel through objects. It can also do 3 different things. What are they?
Light can be reflected, refracted, and absorbed.
Explain why a shadow appears on the screen when I place my hand in front of it.
My hand blocks the sun from hitting the whiteboard
You are looking at a banana. Explain which colors are being absorbed and reflected.
Yellow is reflected and ROGBIV are absorbed
What tool can be used to separate white light into all colors of visible light?
A prism
Explain what glasses do to the light.
Refract the image to make it clearer.
Explain why it feels cooler when you are sitting in the shade on a hot sunny day.
The sunlight does not hit you so you are not absorbing light energy.
List the colors of the rainbow in order.
Red, orange, yellow, green, blue, indigo, violet
Which color has the longest wavelength?
Which color has the shortest wavelength?
Longest= Red
Shortest= Violet
What color coat would help you feel warmer on a cold sunny day- white or black?
Black