- What are the three things that light waves can do when they encounter an
object? Give one example of each in everyday life…
- Know the differences between the following ways that scientists model
(or describe and explain) light:
A) Light is a ray…… What does this mean? …..Plus what are
two examples, or experiments that support this idea of light as a ray?
B) Light is a wave….. What does this mean? …..Plus what are
two examples, or experiments that support this idea of light as a wave?
C)Light is a particle….. What does this mean? …..Plus what are
two examples, or experiments that support this idea of light as a particle.
- Explain what refraction is, what its main causes are, and how it is
evidenced in everyday life. Be able to use/apply the Jell-O man
"trick" to figure out the direction that the light waves bend.
- What happens as a result of the following?: Explain why
the results occur.
--Light is slowed down when it enters a new medium at a sharp angle.
--Light is sent through two slits in a piece of cardboard and projected
on a screen
--You look at a neon sign through a spectrometer.
--White light is sent through a prism.
- The following characteristics affect what properties of light?
Wavelength affects____? Amplitude affects_____?
The medium light travels through affects its__________________?
- What is polarized light? How is it different from ordinary light? Why do
crossed polarizers not let any light through them? (Use the "picket
fence explanation)
- How did Einstein theorize light acts like a particle? What name applies
to them?
- According to quantum physics, some scientists say that light could very
well be a living thing? Why do they say this? What is the experiment that
relates to this? Do you agree, or disagree with this notion? On what
grounds?
- Explain colors caused by transmission through a medium and colors caused
by reflection off of objects. Give examples in everyday life, or ones we
saw in class.
- Study your wave math and "Mr. B's triangle" trick.
- Know these parts/measurements of a transverse wave: crest, trough,
amplitude, frequency (hertz), and wave speed (l
) and if or how these are affected by refraction, changes in media,
reflection, colors, brightness and wave interference.
- How is a virtual image shown through ray diagramming?
- What are the steps light takes through the human eye,
14. Compare/contrast regular with diffuse reflection.
