2018 Mod15 Flashcards
Write out the definition for the following terms:
A. Electromagnetic wave
A transverse wave composed of an oscillating electric field and a magnetic field that oscillates perpendicular to the electric field
B. The law of reflection
The angle of reflection equals angle of incidence
Explain the (1) wave theory of light, the (2) particle theory of light, and the (3) quantum mechanics theory of light
(1) late is a wave not a particle
(2) late is a stream of particles moving in the same direction
(3) light is a stream of particles in a wave
Sound waves cause air to isolate. What do light waves oscillate
A magnetic and electric field
What does Einstein’s special theory of relativity say about the speed of light?
Light in a vacuum it is fast as a substance with Matter can travel
Why is traveling through water and suddenly brakes on the surface and travels through air. Did the light speed increase, decrease, or stay the same ones that left the water?
The speed increased
Order The following colors in terms of increasing wave length: orange, Violet, yellow, green. In other words, list the color corresponding to the smallest wavelength first and end with the color that corresponds to the longest wavelength
Violet, green, yellow, orange
Order of the colors in question six in terms of increasing frequency, once again, start with the lowest frequency and end with the highest frequency
Orange, yellow, green, Violet
Do radio waves have higher or lower frequency than visible light what about x-rays
Radio waves have lower frequencies than visible light. X-rays have a higher frequencies them visible light
Infrared light is given off by any object is losing here heat. The human body is almost always losing heat to the environment. Why then don’t human body to go at night since there a meeting late
Infrared light is invisible
Late hit a mirror making an angle 15° relative to a line drawn on the Pindingt go to the mirror surface. What angle does the reflected light make with the same line?
15° angle
In the diagram, will the man see his foot despite the fact that the mirror does not reach the ground?
Yes
When light travels from one substance to another, what two things can happen to the Direction of the light rays travel
It can be reflected or refracted
A physicist experience meant, a late rates examined as it travels in from a air into glass if the angle that the light rain makes with a line perpendicular to the glass surfaces measured will you factor that meant toward or away from that line
Towards
When you look and objects underwater from above they appear to be a different position then there actual position why
Because of refracted light
In order for you to see a rainbow, what three conditions must be met
One the sun must be behind me two, water droplets must be suspended in air. Three comma the sun must be at the right angle
What is the difference between a converging lens in a diverging lens
A converging lens been the outward, to make light of meat
Diverging lens, bent outward, making light bend it way from itself
What is special about the way the eye focuses light compared to the way a camera focuses light?
But I changes the shape of the lens, where as the camera moves the lens
Supposed to come cells on your retina cents red light no longer work if you look at a piece of white neighbor what color would appear to be? If you looked at a red piece of paper what color
Blue green, black.
Are you sure it is died so it looks like Violet what color of light does the die absorbency?
All but Violet
I can die is made of a mixture of substances that absorb all colors except blue and green. If you took a cayenne piece of paper and place it in a dark room and shined a red light on it what would you say? If you shiny green light on it what would you say?
Black, green.
