Physics Chapter 3

Front 1

When two or more waves are simultaneously present at a single point in space, the displacement of the medium at that point is the sum of the displacements due to each individual wave

Back 1

Principle of SuperPosition

Front 2

The superposition of two waves

Back 2

Interference

Front 3

Occurs when both waves are positive and the total displacement of the medium is larger than it would be for either wave seperately

Back 3

Constructive Interference

Front 4

When the displacement of the medium where the waves overlap is less than it would be due to either of the waves separately.

Back 4

Desrtructive Interference

Front 5

Waves that are trapped and cannot travel in either direction

Back 5

Standing Waves

Front 6

Individual points on a string oscillate up and down,but the wave itself does not travel

Back 6

Standing waves

Front 7

Crest and troughs stand in place

Back 7

Standing Waves

Front 8

Points that never move

Back 8

Nodes

Front 9

Halfway between the nodes, where the particlea in the medium oscillate with maximum displacement

Back 9

Antinodes

Front 10

The wavelength of a standing wave is twice the distance between successive nodes or antinodes

Back 10

Remember

Front 11

The intensity is maximum at points of constructive interference and zero at points of destructive interference

Back 11

Remember

Front 12

A wall or the thing is reflecting

Back 12

The boundary

Front 13

The amplitude of a wavr reflected from a boundary is unchanged

Back 13

Remember

Front 14

A point where there is a change in properties of the medium

Back 14

Discontinuity

Front 15

n

Back 15

Number of segment

Front 16

Helps quantify the number of possible waves in a standing wave

m

Back 16

Mode number

Front 17

A standing wave can exist on the string only its wavelength is one of the values given by this equation

Back 17

Remember

Front 18

n or m = number of antinodes

Back 18

Remembee

Front 19

Standing wave modes are frequencies at which the wave wabts to oscillate

Back 19

Resonances

Front 20

First mode of stabdong wave mode

Back 20

Fundamental Frequency

Front 21

Sequence of possible frequencies

Back 21

Harmonics

Front 22

Frequency above fundamental frequency

Back 22

Higher Harmonics

Front 23

Determines the perceived pitch

Back 23

Fundamental frequency

Front 24

Determine the tone quality

Back 24

Higher harmonics

Front 25

Boundary conditions of a standing sou d wave in a tube

Back 25

Open open

Closed closed

Open closed

Front 26

Regions of higher pressure

Back 26

Compressions

Front 27

Regions of lower pressure

Back 27

Rarefactions

Front 28

Distinctive sound patterm whixh the ear hears a single tone that is modulated

Back 28

Beats

Front 29

Difference between two ftequencies that differ slightly

Back 29

Beat frequency

Front 30

Helps quantify the number of possible waves in a standing wave

Back 30

Mode number

Front 31

Determins the pitch

Back 31

Frequency oscillation

Front 32

Frequency of modulations

Back 32

Frequency beats

Front 33

The superposition of two or more waves into a single wave

Back 33

Interference

Front 34

Occurs when crests and creats are aligned and same with troughs and troughs align

Back 34

Constructive interference

Front 35

When crest aligns with troughs

Back 35

Destructive interference

Front 36

Allowed standing waves

Back 36

Modes of the syatem

Front 37

De tree rmine which standing wave frequencies and ewavelengths are allowed

Back 37

Boundary conditions

Front 38

Two identical traveling qaves moving in opposite directions

Back 38

Standing wave

Front 39

Produced when two waves of slightly different frequencies are superimposed

Back 39

Beats

Front 40

Determines pitc

Back 40

Fundamental frequency

Front 41

Determine 4th e tone quality

Back 41

Higher harmonica