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Emma - Light Energy

How does energy move from place to place? Waves
What type of wave does light use? Transverse waves
What are the three basic parts of a transverse wave? Crest, trough, wavelength
What is the highest point of transverse wave called? Crest
What is the low point of a transverse wave called? Trough
How are waves measured? Wavelength
What is wavelength? It is the difference between one wave crest to the next wave crest.
Besides waves, how else does light travel? Photons
How do light waves travel? Rays
How are light waves different from sound waves? Light waves do not have to have matter to be seen
What is a group of rays called? A beam of light
Name four things a light ray could do when it hits an object. bounce off, bend, pass through, be absorbed
Which materials do not allow light waves to pass through? Opaque
Name an example of a translucent material. Wax paper
Name an example of a transparent material. Clear glass
What color wavelength has the greatest amount of energy? Violet
What color wavelength has the least amount of energy? Red
Why is black not a color? Black is the total absence of color or reflected light
How much light is reflected is reflected back into something that is black? None
Why is white not a color? White is actually a reflection of all colors in the visible spectrum
What is the mix of visible lightwaves called? White light
What can we use to see the different colors that make up white light? Prism
What happens to white light when it passes through a glass prism? Bends and changes direction
What is the bending of light called? Refraction
How do water droplets become tiny prisms after a rainstorm? When sunlight passes through
Created by: mellis1



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