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WAVE MOTION BY: AIMEE R. PAREÑO
<ul><li>WAVE is a disturbance that carries energy through  matter or space. </li></ul><ul><li>MEDIUM – the matter through ...
TYPES OF WAVES: <ul><li>MECHANICAL WAVES </li></ul><ul><li>waves that requires a medium </li></ul><ul><li>ELECTROMAGNETIC ...
CLASSIFICATIONS OF WAVES ACCORDING TO THE DIRECTION OF MOTION OF THE MEDIUM <ul><li>LONGITUDINAL WAVES – the vibrations ar...
CLASSIFICATIONS OF WAVES <ul><li>(A) Transverse waves </li></ul><ul><li>(B) Longitudinal waves </li></ul>
LONGITUDINAL WAVES <ul><li>COMPRESSION  </li></ul><ul><li>the region where the coils of the spring are pressed together  <...
TRANVERSE WAVES <ul><li>CRESTS </li></ul><ul><li>the points where the coils of the spring are at the highest. </li></ul><u...
MEASURES OF A WAVE
<ul><li>WAVEFORM </li></ul><ul><li>a picture of a wave </li></ul><ul><li>AMPLITUDE </li></ul><ul><li>the maximum displacem...
AMPLITUDE AND WAVELENGTH OF THE A WAVE
WAVE MOTION CAN BE DESCRIBED IN TERMS OF ITS SPEED <ul><li>v =  λ  / T  and  T = 1 / f  then, </li></ul><ul><li>v =  λ  / ...
Sample Problem <ul><li>If a dog whistle has a frequency of 30 000 Hz, what is the wavelength of the sound emitted? </li></...
Solution: <ul><li>Given: v = 340 m/s </li></ul><ul><ul><ul><li>  f = 30 000 Hz = 30 000 /s </li></ul></ul></ul><ul><ul><ul...
Evaluation <ul><li>Complete the table </li></ul>150 (b) 300 3 150 (a) (c) 2 250 Velocity (m/s) Wavelength (m) Frequency (Hz)
Assignment <ul><li>What is the period of the wave while Aaron is surfing if the wave propels him toward the beach with a s...
THE END
 
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Wave Motion - Selected Topis in Physics

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Transcript of "Wave Motion - Selected Topis in Physics"

  1. 1. WAVE MOTION BY: AIMEE R. PAREÑO
  2. 2. <ul><li>WAVE is a disturbance that carries energy through matter or space. </li></ul><ul><li>MEDIUM – the matter through which wave travels. </li></ul>
  3. 3. TYPES OF WAVES: <ul><li>MECHANICAL WAVES </li></ul><ul><li>waves that requires a medium </li></ul><ul><li>ELECTROMAGNETIC WAVES </li></ul><ul><li>waves that do not require a medium </li></ul><ul><li>PULSE WAVE </li></ul><ul><li>wave that consists of a single traveling pulse </li></ul><ul><li>PERIODIC WAVES </li></ul><ul><li>the continues generation of pulses (pulse wave) </li></ul>
  4. 4. CLASSIFICATIONS OF WAVES ACCORDING TO THE DIRECTION OF MOTION OF THE MEDIUM <ul><li>LONGITUDINAL WAVES – the vibrations are along the direction of the wave. </li></ul><ul><li>TRANSVERSE WAVES – the vibrations are at a right angle or perpendicular to the direction of the wave. </li></ul>
  5. 5. CLASSIFICATIONS OF WAVES <ul><li>(A) Transverse waves </li></ul><ul><li>(B) Longitudinal waves </li></ul>
  6. 6. LONGITUDINAL WAVES <ul><li>COMPRESSION </li></ul><ul><li>the region where the coils of the spring are pressed together </li></ul><ul><li>RAREFACTION </li></ul><ul><li>the region where the coils of the spring are spread out. </li></ul>
  7. 7. TRANVERSE WAVES <ul><li>CRESTS </li></ul><ul><li>the points where the coils of the spring are at the highest. </li></ul><ul><li>TROUGHS </li></ul><ul><li>the points of the coils of the spring are at the lowest. </li></ul>
  8. 8. MEASURES OF A WAVE
  9. 9. <ul><li>WAVEFORM </li></ul><ul><li>a picture of a wave </li></ul><ul><li>AMPLITUDE </li></ul><ul><li>the maximum displacement of the particles of the medium from their equilibrium </li></ul><ul><li>WAVELENGTH </li></ul><ul><li>the distance between neighboring displacements </li></ul><ul><li>The distance between two successive crests or troughs, or between two successive compressions or rarefactions </li></ul>
  10. 10. AMPLITUDE AND WAVELENGTH OF THE A WAVE
  11. 11. WAVE MOTION CAN BE DESCRIBED IN TERMS OF ITS SPEED <ul><li>v = λ / T and T = 1 / f then, </li></ul><ul><li>v = λ / 1/f therefore, </li></ul><ul><li> </li></ul><ul><li>v = λ f </li></ul><ul><li>where v – velocity of the wave </li></ul><ul><li>λ – wavelength </li></ul><ul><li>f – frequency of the wave </li></ul>
  12. 12. Sample Problem <ul><li>If a dog whistle has a frequency of 30 000 Hz, what is the wavelength of the sound emitted? </li></ul><ul><li>(speed of sound = 340 m/s) </li></ul>
  13. 13. Solution: <ul><li>Given: v = 340 m/s </li></ul><ul><ul><ul><li> f = 30 000 Hz = 30 000 /s </li></ul></ul></ul><ul><ul><ul><li>v = λ f -> λ = v / f </li></ul></ul></ul><ul><ul><ul><li>λ = 340 m/s </li></ul></ul></ul><ul><ul><ul><li>30 000 /s </li></ul></ul></ul><ul><ul><ul><li> = 0.011 m </li></ul></ul></ul>
  14. 14. Evaluation <ul><li>Complete the table </li></ul>150 (b) 300 3 150 (a) (c) 2 250 Velocity (m/s) Wavelength (m) Frequency (Hz)
  15. 15. Assignment <ul><li>What is the period of the wave while Aaron is surfing if the wave propels him toward the beach with a speed of 5.0 m/s and the wave crests are 2.0 m apart? </li></ul>
  16. 16. THE END
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