Wave Light Sound

Question 1

Medium

Answer 1

The material that gets disturbed/ moved

Question 2

What are the two types of waves

Answer 2

Transversals

Longitudinal

Question 3

Transversal

Answer 3

Medium motion perpendicular to the direction of wave( energy traveled )
|
–

Question 4

Longitudinal

Answer 4

Motion of medium is parallel to wave direction, medium bunches up into compressions and spreads out into rarefactions

Question 5

Rare fraction

Answer 5

The part if longitudinal wave not compressed

Question 6

Compression

Answer 6

The part of longitudinal wave that’s compressed

Question 7

Amplitude

Answer 7

Max distance molecules displaced from rest position, hieght of wave

Question 8

How is energy and amplitude related

Answer 8

More energy equals more amplitude

Question 9

How is sound/intensity related to amplitude

Answer 9

More amplitude equals louder sound

Question 10

How is energy related to light

Answer 10

More energy equals Brighter light , more intense

Question 11

Wavelength

Answer 11

Distance between two consecutive rarefactions or compressions
(Crests or troughs )

Question 12

Crest

Answer 12

Top of wave

Question 13

Trough

Answer 13

Bottom of wave

Question 14

What determines the type of electromagnetic wave

Answer 14

Wavelength

Question 15

Type of waves from longest to shortest

Answer 15

Radio, micro, infared, visible, ultraviolet, X-Ray, gamma

Question 16

What dos shorter wave length means

Answer 16

Shorter equals more energetic and frequency

Question 17

Frequency

Answer 17

Number of waves per second, how many waves pass a ser per second

Question 18

Hertz

Answer 18

One wave per second

Question 19

At a SET speed what is the relationship between frequency and wavelength

Answer 19

When frequency increases wavelength decreases

Question 20

What does frequency of light determine

Answer 20

Color

Question 21

Pitch

Answer 21

Frequency of sound

Question 22

How are frequency and pitch related

Answer 22

When frequency increase so does pitch

Question 23

Faster the vibrations means

Answer 23

Higher pitch/frequency

Question 24

Ultrasonic

Answer 24

Higher pitch

Question 25

What is the range of audible sound

Answer 25

20- 20,000 hz

Question 26

Subsonic

Answer 26

Lower pitch

Question 27

Period

Answer 27

Time for one wave to pass set point

Question 28

How are periods and wave length related at a SET speed

Answer 28

Loner wave equals longer period at set speed

Question 29

How are periods and frequency related

Answer 29

Higher frequency means shorter periods

Question 30

Formula for frequency

Answer 30

F = 1/p

Question 31

Formula for period

Answer 31

P= 1/f

Question 32

Wave speed

Answer 32

How fast one crest is moving

Question 33

Speed formula

Answer 33

Frequency X wavelength

Question 34

How does speed of light change going through different mediums

Answer 34

Fastest in vacuum, then air, then water, then slowest in solid

Question 35

Angel of incidence

Answer 35

Between incident wave and normal

Question 36

Normal

Answer 36

Line perpendicular to object

Question 37

Angel of reflectionn

Answer 37

Between normal and reflected wave

Question 38

Angle of refraction

Answer 38

Angle of incidence

Question 39

Diffuse reflection

Answer 39

Many directions, rough surface

Question 40

Refraction

Answer 40

Wave bends due to change in speed, often Cause f change of medium

Question 41

How does light react to dense mediums

Answer 41

Light does slower in denser mediums

Question 42

How does sound react to dense mediums

Answer 42

Sound goes faster in more dense mediums

Question 43

Diffraction

Answer 43

Bending of waves around a barrier

Question 44

Interference

Answer 44

Two waves combine to form a new wave

Question 45

Two types of interference

Answer 45

Constructive and destructive

Question 46

Constructive

Answer 46

\/\/\/\ + \/\/\/\ = \/\/\/\/\/\ | Crests overlap to create larger amplitude

Question 47

Destructive

Answer 47

\/\/\/\ + /\/\/\/ = ------ | Crests line up with trough to cancel out

Question 48

Echo

Answer 48

Reflection

Question 49

Which is faster speed of light or speed of sound

Answer 49

Speed of light

Question 50

Speed is determined by what

Answer 50

Medium and temp

Question 51

What temp is sound fastest

Answer 51

Warm

Question 52

Ultra sound

Answer 52

Higher frequency then humans can hear | >20,000hz

Question 53

What is ultra sound used for

Answer 53

Echocardiograms Echolocation Ultrasounds

Question 54

What type of objects reflect sound best

Answer 54

More dense objects

Question 55

What does sonar stand for

Answer 55

SOund Navigation And Ranging

Question 56

Distance formula

Answer 56

1/2 time X speed of sound

Question 57

What type of wave is a sound wave

Answer 57

Longitudinal

Question 58

What type of wave is light

Answer 58

Electromagnetic transversals

Question 59

What is a light wave

Answer 59

A disturbance of the electrical and magnetic fields which transports energy in the form of a photon

Question 60

How are electro and magnetic fields related to each other in light

Answer 60

``` They are at right angles to one another When one is /\/\/\/ The other is / \ / \ ```

Question 61

What is the light disturbance caused by

Answer 61

A photon

Question 62

Photon

Answer 62

Particles of light, packets of energy, emitted when an electron drops down to a lower level

Question 63

Frequency of sound wave created depends on what

Answer 63

Amount of energy in photon, high energy photon equals high frequency light wave

Question 64

What are the types of transmission of light

Answer 64

Opaque Transparent objects Scattering

Question 65

Opaque

Answer 65

Don't transmit only absorb or reflect

Question 66

Transparent objects

Answer 66

Transmit into straight line

Question 67

Scattering

Answer 67

Molecules absorb light and scatter in all directions

Question 68

Opaque objects

Answer 68

Regretted over wavelengths Color reflected is the color we see If all reflected we see white If all absorbed we see black

Question 69

Scattering objects

Answer 69

Small molecules scatter high frequency

Question 70

N2 and O2 of air scatter what colors

Answer 70

Violet and blue

Question 71

Very large particles do what

Answer 71

Absorb light and are opaque

Question 72

Why is the sky blue

Answer 72

Because the small molecules in the atmosphere scatter small blue light so blue stays in the atmosphere longer

Question 73

Why are clouds white

Answer 73

Water droplets are all different sizes which reflect all different wavelengths of light= white

Question 74

Wave

Answer 74

A disturbance that moves energy through space

Question 75

Why are storms grey

Answer 75

Large water drops absorb all colors the bigger he drops the darker the clouds= black

Question 76

What travels along the wave path

Answer 76

Energy

Question 77

What type of wave is sound

Answer 77

Longitudinal

Question 78

What does increased amplitude change in sound and light waves

Answer 78

Sound becomes Louder, light becomes brighter

Question 79

What is the law of reflection

Answer 79

The angle of incidence equals the angle of reflection

Question 80

When light bends into a denser medium does it bend toward or away from normal

Answer 80

Toward normal

Question 81

Why is the sunset red

Answer 81

Sunsets and sunrises are red because at sunset the sunlight has to travel through more atmosphere than at other times of day so very little of the shorter wavelength light makes it all the way through. Very little red light is scattered because of its long wavelength so red light makes it through to your eye.

Question 82

Explain the Doppler effect

Answer 82

Doppler effect is a change in pitch caused my a moving sound emitter or light emitter. Observer 2 would hear the higher pitch sound because the object is moving toward observer 1.

Question 83

What causes echoes

Answer 83

Reflection of sound waves off of hard flat surfaces

Question 84

What waves are longer than visible and what are shorter

Answer 84

Longer: radio, tv, micro, infared Shorter: ultraviolet, X-ray, gamma

Question 85

What two fields are disturbed by the passage of a photon and what type of wave does this create

Answer 85

Electro and magnetic and it creates an electromagnetic transverse wave

Question 86

Can light travel through space

Answer 86

Yes any electromagnetic wave can