Flashcards
Harmonic Motion and Mechanical Waves
Cards in this deck (30)
- 1WaveCreated by vibration; the resulting energy travels through a medium.
- 2FrequencyThe number of cycles per second (Hz).
- 3Period of VibrationTime for one cycle "T"; measured in seconds.
- 4Simple Harmonic MotionOccurs when elastic material undergoes vibration while amplitude remains constant.
- 5Max Compression and ExtensionVelocity is zero and amplitude is max.
- 6EquilibriumVelocity max, acceleration is zero.
- 7Max Compression and Extension (Energetics)Max potential energy and zero kinetic energy.
- 8Equilibrium (Energetics)Potential energy zero, max kinetic energy.
- 9PendulumThe angle of deflection must be less than 15 degrees.
- 10Pendulum Energetics Max HeightMax potential energy
- 11Pendulum Energetic EquilibriumMax kinetic energy
- 12Mechanical WavesMust travel through matter.
- 13Electromagnetic WavesCan travel through a vacuum (ex. light, UV, etc.)
- 14Transverse WavesOccurs when source vibration is perpendicular to wave motion.
- 15CrestHigh point of transverse wave.
- 16TroughLow point of transverse wave.
- 17AmplitudeThe height (energy) of the wave.
- 18WavelengthOne cycle of the wave; crest to crest or trough to trough.
- 19Longitudinal WavesOccurs when the source vibration moves parallel to the direction of the waves motion.
- 20InterferenceWaves can pass through each other.
- 21Principle of SuperpositionThe resultant displacement of a particle is equal to the sum of its separate displacements.
- 22Constructive InterferenceWhen two waves add to the amplitude of the resultant wave.
- 23Destructive InterferenceThe wave produced has a smaller amplitude.
- 24Total Destructive InterferenceWhen waves are equal in amplitude but opposite so they cancel each other out completely.
- 25Characteristics of SoundPitch - frequency
Loudness - amplitude
Quality - type of wave - 26ResonanceThe increase in amplitude in an object when a periodic force vibrating at the object's natural frequency is added.
- 27Standing WaveA wave pattern that does not appear to move.
- 28Node- destructive interference
- zero amplitude - 29Antinode- constructive interference
- max amplitude - 30Fundamental Frequencyn = 1
lowest natural frequency
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- High School Science Flashcards on Harmonic Motion and Mechanical Waves , created by ash.hariharan on 03/01/2015.
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