Physics - Chapter 4

Question 1

One half the range from crest to valley over which the sine wave varies

Answer 1

Amplitude

Question 2

Number of wavelengths that pass a point of observation per second

Answer 2

Frequency

Question 3

Distance from one crest to another

Answer 3

Wavelength

Question 4

What is an xray photon a quantum of?

Answer 4

Electromagnetic energy

Question 5

What is the velocity of ALL electromagnetic radiation?

Answer 5

3 x 10^8m/s

Question 6

At any given velocity, wavelength and frequency are:

Answer 6

Inversely proportional

Question 7

The relation between the energy of a photon and its frequency is:

Answer 7

Directly proportional

Question 8

What is the order of the electromagnetic spectrum?

Answer 8

1. Radio waves
2. Microwaves
3. Infrared
4. Visible light
5. Ultraviolet
6. Xrays
7. Gamma rays

Question 9

What is the only difference between X-rays and gamma rays?

Answer 9

Their origin

Question 10

What is visible light identified by?

Answer 10

Wavelength

Question 11

What is radio frequency identified by?

Answer 11

Frequency

Question 12

What are X-rays identified by?

Answer 12

Energy

Question 13

When do photons interact with matter most easily?

Answer 13

When the matter is approximately the same size as the photon wavelength

Question 14

What do X-rays behave like?

Answer 14

Particles

Question 15

What does visible light behave like?

Answer 15

A wave of

Question 16

What is electromagnetic energy attenuation?

Answer 16

The reduction in intensity that results from scattering and absorption

Question 17

What is a discrete bundle of energy?

Answer 17

The xray photon

Question 18

What is the relation between the energy of a photon and its frequency?

Answer 18

Directly proportional

Question 19

V= f(lambda)

Answer 19

Wave equation

Question 20

c = f(lambda)

Answer 20

Electromagnetic wave equation

Question 21

Unit of frequency

Answer 21

Hertz