Light

Question 1

Visible spectrum for humans ranges from:

Answer 1

400 to 700 nanometers.

Question 2

Energy is described by:

Answer 2

wavelength

Question 3

Spectrum ranges from

Answer 3

short wavelength gamma rays to long wavelength radio waves.

Question 4

Most perceived light is

Answer 4

reflected light i.e. bounces off objects within out environment.

Question 5

Light can be (5):

Answer 5

absorbed, scattered, reflected, transmitted, or refracted

Question 6

Absorbed

Answer 6

Energy (e.g., light) that is taken up, and is not transmitted at all

Question 7

Scattered:

Answer 7

Energy that is dispersed in an irregular fashion

• When light enters the atmosphere, much of it is absorbed or scattered and never makes it to the perceiver.

Question 8

Reflected:

Answer 8

Energy that is redirected when it strikes a surface, usually back to its point of origin

Question 9

Transmitted:

Answer 9

Energy that is passed on through a surface (when it is neither reflected nor absorbed by the surface)

Question 10

Refracted:

Answer 10

Energy that is altered as it passes into another medium, (e.g., light entering water from the air)

Question 11

__ is the stimulus for vision

Answer 11

Light

Question 12

Energy is described by __

Answer 12

wavelength

Answer 13

visin