Terms : Hide Images
| 9580054109 | Waves | carries energy not matter |  | 0 |
| 9580054110 | Medium | Material through which a disturbance travels | 1 | |
| 9580054111 | Mechanical Wave | a disturbance that propagates through a deformable, elastic medium |  | 2 |
| 9580054112 | electromagnetic wave | a combination of oscillating magnetic and electric field *transverse waves |  | 3 |
| 9580054113 | Electromagnetic wave examples | visible light, radio, x-rays, gamma, infrared, ultraviolet | 4 | |
| 9580054114 | Pulse | A single disturbance |  | 5 |
| 9580054115 | Periodic Wave | a continueous wave produced by a source vibrating with simple harmonic motion | 6 | |
| 9580054116 | Periodic Wave EX | traveling wave, continuous wave | 7 | |
| 9580054117 | Transverse Waves | particles vibrate perpendicular to propagation crest and trough |  | 8 |
| 9580054118 | Transverse Examples | radio, light, microwaves, stringed instrument, stadium wave, earthquake S waves (shear) | 9 | |
| 9580054119 | Longitudinal | Particles vibrate parallel to propagation compression and rarefaction, or condensation and expansions |  | 10 |
| 9580054120 | Surface Wave | Particles vibrate parallel and perpendicular to propagation crest and trough travel along the boundary between two materials |  | 11 |
| 9580054121 | Surface Wave Examples | ocean, ripples in ponds | 12 | |
| 9580054122 | Amplitude | Distance from the equilibrium position to the position of maximum displacement -Energy dependent -A is var -Loudness of sound |  | 13 |
| 9580054123 | Frequency | The number of cycles per second -in Hz = cycles/sec - f = 1/T -Doesn't change often |  | 14 |
| 9580054124 | pitch | how high or low we perceive a sound wave |  | 15 |
| 9580054125 | Period | Time for one complete cycle T = 1/f | 16 | |
| 9580054126 | Wavelength | the distance between an two consecutive similar parts on a wave -crest to crest, trough to trough, compression to compression -lambda |  | 17 |
| 9580054127 | Wave velocity | the velocity at which waves propagate |  | 18 |
| 9580054128 | Wave Velocity Equation | v = frequency * wavelength | 19 | |
| 9580054131 | In Phase | Objects have the same displacement from the equilibrium position at the same time and are vibrating in the same direction. | 20 | |
| 9580054132 | Out of Phase | Objects don't have the same displacement or are vibrating in different directions | 21 | |
| 9580054133 | Principle of Superposition | When two or more waves are present simultaneously at the same place, the resultant disturbance is the sum of the disturbances from the individual waves | 22 | |
| 9580054134 | Constructive Interference | Occurs when two waves come together to form a larger amplitude as they pass through each other |  | 23 |
| 9580054135 | Destructive Interference | Occurs when two waves come together to form a smaller resulting amplitude as they pass through each other. |  | 24 |
| 9580054136 | Standing Wave | The result of identical waves traveling in opposite directions forming nodes and antinodes |  | 25 |
| 9580054137 | Nodes | a point of complete destructive interference - the medium is not displaced as the waves pass through each other |  | 26 |
| 9580054138 | Antinodes | a point of constructive interference - the point where the displacement caused by the interfering waves is largest |  | 27 |
| 9580054139 | The Law of Reflection | The angle of incidence is equal to the angle of reflection |  | 28 |
| 9580054140 | Angle of Incidence | the angle between the incident ray and the line normal to the surface |  | 29 |
| 9580054141 | Angle of Reflection | The angle between the reflected ray and the line normal to the surface | | 30 |
| 9580054142 | Refraction | the change of wave direction at the boundary between two media -wave length and velocity decreases as waves moves to shallower water | 31 | |
| 9580054143 | diffraction | The spreading of waves around the edge of a barrier _the smaller the wavelength in comparison to the size of the obstacle, the less the diffraction -diffraction occurring with two closely spaced holes forms antinodal and nodal lines | 32 | |
| 9580054144 | speed of sound | Depends on medium fastest through solids, then liquids, and slowest in gasses fastest through warmer temperatures | 33 | |
| 9580054145 | Doppler effect | Frequency, therefore pitch, is higher as the source approaches than it is at the source |  | 34 |
| 9580054146 | Resonance | the condition under which a driving force can transmit large amounts of energy to an oscillating object, leading to large amplitude motion. Occurs when the frequency of the driving force matches the natural frequency at which the object oscillates | 35 | |
| 9580054147 | Incident wave | the wave that moves through the boundary | 36 | |
| 9580054148 | transmitted wave | the wave that moves through the new medium | 37 | |
| 9580054149 | reflected wave | the energy that moves backward from a wave boundary as a wave in the old medium | 38 | |
| 9580054150 | Going through mediums | Changes the amplitude and the energy carried through or reflected depending on the differences of change | 39 | |
| 9580054151 | Wave is inverted | when the wave passes from less dense to more dense; reflected wave is this | 40 | |
| 9580054152 | Wave is erect | when the wave passes from more dense to less dense, reflected wave is this | 41 | |
| 9580054153 | f = velocity/wavelength | If the speed in the new medium decreases, the wavelength will as well, because frequency stays the same no matter what. | 42 | |
| 9580054154 | Hooke's Law | F = -kx k is N/m | 43 | |
| 9580054155 | Frequency of Sound | Infrasonic, Middle, Ultrasonic | 44 | |
| 9580054156 | Infrasonic | Below what we can hear; <20 Hz; Examples: Earthquakes, Machinery, Thunder | 45 | |
| 9580054157 | middle | We can hear; 20Hz -> 20,000 Hz; we're most sensitive to 2,000 - 4,000 Hz | 46 | |
| 9580054158 | Ultrasonic | Above what we can hear; >20,000 Hz; Bats | 47 | |
| 9580054159 | Beat Frequency | The difference between the frequency of to component waves that are close in frequency The further apart the two frequencies are, the higher the beat frequency (closer = slower) | 48 | |
| 9580054163 | Fundamental (1st Harmonic) | Ends with Nodes: 1/2(wavelength) Open Pipe: 1/2(Wavelength) Closed Pipe: 1/4(wavelength) |  | 49 |
| 9580054164 | 1st Overtone (2nd Harmonic) | Ends with Nodes: (wavelength) Open Pipe: 1 (Wavelength) Closed Pipe: 3/4(wavelength) |  | 50 |
| 9580054165 | 2nd Overtone (3rd harmonic) | Ends with Nodes: 3/2(wavelength) Open Pipe: 3/2(Wavelength) Closed Pipe: 5/4(wavelength) |  | 51 |
| 9580054166 | 3rd Overtone (4th Harmonic) | Ends with Nodes: 2(wavelength) Open Pipe: 2(Wavelength) Closed Pipe: 7/4(wavelength) | 52 | |
| 9580054167 | Open Pipe Resonators | Opened at both ends, ends with antinodes, room for air to compress | 53 | |
| 9580054168 | Closed Pipe Resonator | One end is closed | 54 |
