CHAPTER 3

Question 1

x axis is ____

Answer 1

Horizontal

Question 2

y axis is ____

Answer 2

Vertical

Question 3

Direct relationship

Answer 3

As X axis increases, so does the value of Y axis

Question 4

Inverse relationships

Answer 4

As X axis increases, the value of Y axis decreases

Question 5

electromagnetic radiation can be defined as …?

Answer 5

an electric and magnetic disturbance traveling through space at the speed of light

Question 6

Define electromagnetic spectrum

Answer 6

the way of ordering or grouping different electromagnetic radiations

Question 7

all members of the electromagnetic spectrum have the same velocity which is …?

Answer 7

3 x 10^8 m/s (the speed of light)

Question 8

All members of the electromagnetic spectrum vary in …?

Answer 8

• Energy
• Wavelength
• Frequency

Question 9

Define wavelength

Answer 9

distance between from one peak to another

Question 10

Define Amplitude

Answer 10

The height of the wave

Question 11

Frequency is ..?

Answer 11

number of waves passing at a given point per second

Question 12

As wavelength increases, Frequency ___.

Answer 12

Decreases

Question 13

As wavelength decreases, Frequency ___.

Answer 13

Increases

Question 14

Electromagnetic spectrum energy from lowest to highest is …?

Answer 14

• Radio waves
• Microwaves
• Infrared light
• Visible light
• Ultraviolet light
• X-rays
• Gamma Rays

Question 15

Wavelengths of the electromagnetic spectrum ranges from …?

Answer 15

10^6 to 10^-16 meters

Question 16

Frequencies range from …

Answer 16

10^2 to 10^24 Hertz (Hz)

Question 17

Energy ranges from …

Answer 17

10^-12 to 10^10 Electron volts (eV)

Question 18

Velocity Formula

Answer 18

Velocity = Frequency x wavelength

Question 19

electromagnetic radiation

Answer 19

is pure energy, a combination of electric and magnetic fields

Question 20

X-rays and Gamma Rays act more like ___.

Answer 20

Particles and has higher energy photons

Question 21

Radio waves and microwaves act like ___.

Answer 21

waves and has lower energy radiation

Question 22

The intensity of ___ diminishes over ___.

Answer 22

• Light
• Distance

Question 23

Inverse square law

Answer 23

the intensity if light diminishes by a factor of the square of the distance from the source

Question 24

Alpha Particles…?

Answer 24

• have short wavelengths
• can ionize matter
• are 2 protons bound by 2 neutrons
• positive charged

Question 25

Beta Particles…?

Answer 25

• can penetrate light materials
• can ionize matter
• both negative and positive charged

Question 26

4x more distance = ___ ___ ___

Answer 26

1/2 less exposure

Question 27

1/2 more exposure = ___ ___ ___

Answer 27

4x less distance

Question 28

2x more distance = ___ ___ __

Answer 28

1/4 less exposure

Question 29

1/4 more exposure = ___ ___ ___

Answer 29

2x less distance