Question

section 5.1 light and quantized energy
in your textbook, read about the wave - nature of light.
use each of the terms below just once to complete the passage.
amplitude energy frequency hertz light wave wavelength speed
electromagnetic radiation is a kind of (1) energy that behaves like a(n) (2) wave as it travels through space. (3) is one type of electromagnetic radiation. other examples include x - rays, radio waves, and microwaves.
all waves can be characterized by their wavelength, amplitude, frequency, and (4). the shortest distance between equivalent points on a continuous wave is called a(n) (5). the height of a wave from the origin to a crest or from the origin to a trough is the (6). (7) is the number of waves that pass a given point in one second. the si unit for frequency is the (8), which is equivalent to one wave per second.
use the figure to answer the following questions.

1. which letter(s) represent one wavelength?
2. which letter(s) represent the amplitude?
3. if once the length of a passes a stationary point every second, what is the frequency of the wave?

Explanation:

Electromagnetic radiation is a form of energy that travels as waves. Light is an example of it. Waves are characterized by speed, wavelength (distance between equivalent points), amplitude (height from origin to crest/trough), frequency (waves per second) with unit hertz. In the wave - diagram, wavelength is the distance between two equivalent points (like A), amplitude is the height from origin to crest (like B). If the length of A passes a stationary point in one second, the frequency is 1 hertz as one wave passes per second.

Answer:

(1) energy
(2) wave
(3) light
(4) speed
(5) wavelength
(6) amplitude
(7) frequency
(8) hertz
(9) A
(10) B
(11) 1 hertz