Unit 5

Question 0

Medium

Answer 0

A medium is the material through which a wave travels.

Question 1

A disturbance that transfers energy from one place to another.

Answer 1

Wave

Question 2

Longitudinal wave

Answer 2

In a longitudinal wave, particles move back and forth in the same direction the wave travels or parallel to the wave.

Question 3

Transverse wave

Answer 3

In this wave particles move perpendicularly to the direction the wave travels.

Question 4

A material through which a wave travels.

Answer 4

Medium.

Question 5

Mechanical wave

Answer 5

Mechanical waves are waves that need a medium to travel.

Question 6

In what wave do particles move back in forth or parallel to the wave?

Answer 6

A longitudinal wave.

Question 7

Electromagnetic wave

Answer 7

They are in disturbances of electric fields and also considered a transverse wave.

Question 8

In what wave do the particles move perpendicularly to the direction the wave is moving?

Answer 8

A transverse wave.

Question 9

Which wave causes disturbances to magnetic fields and also considered a transverse wave?

Answer 9

Electromagnetic waves.

Question 10

What type of wave needs a medium to travel?

Answer 10

A mechanical wave.

Question 11

What is amplitude?

Answer 11

An amplitude measures how far particles move from their original point in the medium.

Question 12

Wave

Answer 12

A wave is a disturbance that transfers energy from one place to another.

Question 13

What measures how far particles have moved from their original spot in the medium.

Answer 13

The amplitude.

Question 14

What is wavelength?

Answer 14

Wavelength is the distance over which the waves shapes repeat.

Question 15

What measures the distance in which the waves shapes repeat?

Answer 15

The wavelength.

Question 16

What is a wave period?

Answer 16

Wave period is the time it takes to complete a cycle.

Question 17

What measures the time it takes for a cycle to complete itself.

Answer 17

Wave period.

Question 18

What is frequency?

Answer 18

Tells you how many cycles occur in one amount of time.

Question 19

What tells you how many cycles occur in an amount of time?

Answer 19

Frequency.

Question 20

What is the measures of hertz?

Answer 20

One hertz is equal to one cycle per second.

Question 21

What is equal to one cycle per second?

Answer 21

One hertz.

Question 22

What is a wavefront?

Answer 22

Peaks of the wave.

Question 23

What are peaks of the wave called?

Answer 23

A wavefront.

Question 24

What measures the speed of the wave?

Answer 24

Wave speed.

Question 26

What is wave speed?

Answer 26

The speed in which the wave travels.

Question 27

What is radiation?

Answer 27

Radiation is the transfer of the EM waves.

Question 28

What is the transfer of EM waves?

Answer 28

Radiation.

Question 29

What is an electromagnetic spectrum?

Answer 29

The frequencies or wavelengths of EM waves.

Question 30

What measures the frequencies or wavelength of EM waves?

Answer 30

The electromagnetic spectrum.

Question 31

What does infrared mean?

Answer 31

That it has slightly longer wavelengths then red lights.

Question 32

What has slightly longer wavelengths then red lights?

Answer 32

Infrared waves.

Question 33

What does ultraviolet mean?

Answer 33

Ultraviolet light has slightly shorter wave lengths than violet light.

Question 34

What has slightly shorter wavelengths the violet light?

Answer 34

Ultraviolet waves.

Question 35

What does transparent mean?

Answer 35

Matter that transmits light is transparent.

Question 36

What does it mean when matter can transmit light?

Answer 36

It means that the matter is transparent.

Question 37

What does translucent mean?

Answer 37

Translucent materials transmit light, but do not let light travel straight through.

Question 38

What does it mean if matter transmits light but does not let light travel straight through?

Answer 38

It means that the matter is translucent.

Question 39

What does opaque mean?

Answer 39

It means that if a material is opaque it does not let any light through.

Question 40

What does it mean if an object doesn't let any light through?

Answer 40

It means that the material is opaque.

Question 41

What does absorption mean?

Answer 41

It is the transfer of light-energy to matter.

Question 42

What is it called if light-energy is transferred into matter?

Answer 42

It is called absorption.

Question 43

What's a reflection?

Answer 43

A reflection is light bouncing off of a surface.

Question 44

What is it when light bounces off a surface?

Answer 44

A reflection.

Question 45

What is a refraction?

Answer 45

Refraction is the change in direction of a wave as it passes from one medium into another at an angle.

Question 46

What is the change in direction of a wave as it passes from one medium into another at an angle?

Answer 46

A refraction.

Question 47

What does it mean when something is scattering?

Answer 47

It is when light is sent in many different directions through a medium.

Question 48

What is it called when light is sent many different directions as it passes through a medium?

Answer 48

It's called scattering.