Term
| What does the amplitude of the wave determine? |
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Definition
| The amount of energy in a wave. |
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Term
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Definition
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Term
| If the vibration is sinusoidal, what form are the waves? |
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Definition
| The waves are also sinusoidal because waves are caused by vibrations. |
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Term
| What type of wave has particles that move perpendicular to the motion of the wave? |
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Definition
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Term
| What type of wave has particles that move in the same direction as (parallel to) the motion of the wave? |
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Definition
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Term
| Draw and Label Crest, Trough, Wavelength, and Amplitude of a Transverse wave. |
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Definition
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Term
| Draw and Label compression, rarefaction, and wavelength of a longitudinal wave. |
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Definition
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Term
| What is the velocity of a wave? |
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Definition
| The velocity at which the crests move. |
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Term
| What occurs when two waves pass through the same region of space at the same time? |
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Definition
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Term
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Definition
| When two waves overlap the resultant displacement is the algebraic sum of their seperate displacements. |
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Term
| What causes constructive interference? |
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Definition
| When the resultant displacement is greater than either pulse. |
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Term
| What causes destructive interference? |
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Definition
| When the resultant displacement is less than that of either pulse. |
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Term
| What is Boundary Behavior |
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Definition
| Behavior of a wave upon reaching the end of a medium. |
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Term
| What happens when a wave reaches a boundary between two mediums? Does the frequency change? |
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Definition
| Part of the wave is transmitted and part of it is reflected. The frequency NEVER changes. |
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Term
| What is the incident pulse? |
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Definition
| The pulse in the initial medium approaching the boundary. |
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Term
| What is the pulse that returns in the initial medium after bouncing off the other medium? |
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Definition
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Term
| When is the speed of the reflected pulse the same as the speed of the incident pulse? |
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Definition
| During fixed end reflection. |
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Term
| How do the wavelength and amplitude of the reflected pulse compare to that of the incident pulse in fixed end reflection? |
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Definition
| the wavelength of the reflected pulse is the same as the wavelength of the incident pulse, but the amplitude of the reflected is less than the amplitude of the incident. |
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Term
| What is the difference between free end and fixed end reflection? |
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Definition
| In fixed end the reflected pulse is inverted and in free end, the reflected pulse is not. |
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Term
| From a LESS dense medium to MORE dense, how does the speed of the transmitted pulse compare to the reflected pulse? |
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Definition
| The transmitted pulse is traveling SLOWER than the reflected pulse. |
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Term
| From a LESS dense medium to MORE dense, how does the wavelength of the transmitted pulse compare to the reflected pulse? |
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Definition
| The transmitted pulse has a SMALLER wavelength than the reflected pulse. |
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Term
| From a LESS dense medium to MORE dense, how does the speed of the transmitted pulse compare to the reflected pulse?From a less dense medium to more dense, how does the wavelength of the transmitted pulse compare to the INCIDENT pulse? |
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Definition
| Speed is slower, wavelength is shorter. |
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Term
| From a LESS dense medium to MORE dense, which pulse (transmitted or reflected) are on the opposite side (out of phase) as the incident phase? |
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Definition
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Term
| From LESS dense medium to MORE dense, which pulse (transmitted or reflected) is on the same side (in phase) as the incident phase? |
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Definition
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Term
| From a MORE dense medium to LESS dense, how does the wavelength of the transmitted pulse compare to the reflected pulse? |
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Definition
| The transmitted pulse has a LARGER wavelength than the reflected pulse. |
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Term
| From a MORE dense medium to LESS dense, how does the velocity of the transmitted pulse compare to the reflected pulse? |
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Definition
| The transmitted pulse is FASTER than the reflected pulse. |
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Term
| From a MORE dense medium to a LESS dense, which pulse (transmitted or reflected) are on the opposite side (out of phase) as the incident phase? |
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Definition
| the transmitted pulse and the reflected pulse |
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Term
| Is the wave speed greatest in the least dense or most dense medium? |
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Definition
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Term
| Is the wavelength the greatest in the least dense medium or the most dense medium? |
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Definition
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Term
| Is the amplitude of the incident pulse greater or smaller than the amplitude of the reflected pulse? |
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Definition
| The amplitude of the incident pulse is always greater than the amplitude of the reflected pulse. |
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Term
| What two factors are the speed of waves dependent on? |
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Definition
| Tension and Mass/length (acceleration/speed increases when tension increases, mass decreases, and length of string decreases) |
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Term
| Give an example of how to form a standing wave? |
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Definition
| If you shake one end of a cord and keep the other end fixed - results in a continuous wave that travels down to the fixed end and is reflected back, out of phase. |
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Term
| In a standing wave, which direction do the waves travel? |
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Definition
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Term
| What are two special results that occur if you shake a cord at a specific frequency? |
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Definition
| A standing wave, and creation of a node. |
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Term
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Definition
| Points of destructive interference that result in minimum (zero) amplitude. |
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Term
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Definition
| Points of constructive interference (max amplitude) |
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Term
| What is the wave equation for the velocity of a wave using frequency. |
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Definition
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