Chapter 11 Waves
WAVES TERMINOLOGY
Periodic waves <ul><li>If the disturbance to the medium  happens only once , a single  wave pulse  is produced. </li></ul>...
Periodic waves <ul><li>The particles of the medium of a periodic wave are exhibiting  periodic motion . </li></ul><ul><li>...
Periodic waves – one oscillation <ul><li>One complete periodic motion is known as an  oscillation . </li></ul>One oscillat...
Periodic waves – one oscillation Starting position Direction of wave Transverse wave 1 2 3 4 Starting position Direction o...
Terms to describe wave motion <ul><li>Crest  and  troughs : The highest and lowest points of a transverse wave, respective...
Terms to describe wave motion <ul><li>Phase : Any two points are said to be in phase when  they move in the same  directio...
Terms to describe wave motion <ul><li>Wavelength  (  )(m): The shortest distance between any two points that are in phase....
Terms to describe wave motion <ul><li>Period  (  )(s): The time taken for one point on the wave to make one oscillation. T...
Terms to describe wave motion <ul><li>Frequency  (  )(Hz): Number of complete waves produced per second. </li></ul>Period ...
Terms to describe wave motion <ul><li>Wave speed  (  )(ms -1 ): How quickly the wave propagates.  </li></ul>Wave speed Fre...
Terms to describe wave motion <ul><li>Wave front : An imaginary line on a wave that joins all points that are in the same ...
Terms to describe wave motion Direction of wave motion. Compression Rarefaction Crest Trough 1 wavelength 1 wavelength 1 w...
Terms to describe wave motion Direction of wave Transverse wave A B Points A and B are in phase. They are 1 wavelength apa...
Terms to describe wave motion Starting position Direction of wave Longitudinal wave 1 2 3 4 Amplitude Amplitude
Upcoming SlideShare
Loading in …5
×

Chapter 11 waves terminology

5,201 views

Published on

Published in: Education, Business, Technology
0 Comments
4 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
5,201
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
0
Comments
0
Likes
4
Embeds 0
No embeds

No notes for slide

Chapter 11 waves terminology

  1. 1. Chapter 11 Waves
  2. 2. WAVES TERMINOLOGY
  3. 3. Periodic waves <ul><li>If the disturbance to the medium happens only once , a single wave pulse is produced. </li></ul><ul><li>If the disturbance to the medium happens in regular repetitions , a periodic wave is produced. </li></ul>
  4. 4. Periodic waves <ul><li>The particles of the medium of a periodic wave are exhibiting periodic motion . </li></ul><ul><li>Periodic motion is motion repeated at regular intervals . </li></ul>
  5. 5. Periodic waves – one oscillation <ul><li>One complete periodic motion is known as an oscillation . </li></ul>One oscillation is completed when the pendulum bob moves from A to B, and then back again to A.
  6. 6. Periodic waves – one oscillation Starting position Direction of wave Transverse wave 1 2 3 4 Starting position Direction of wave Longitudinal wave 1 2 3 4
  7. 7. Terms to describe wave motion <ul><li>Crest and troughs : The highest and lowest points of a transverse wave, respectively. </li></ul><ul><li>Compressions and rarefactions : The regions of a longitudinal wave where the wave particles are closest together and furthest apart, respectively </li></ul>
  8. 8. Terms to describe wave motion <ul><li>Phase : Any two points are said to be in phase when they move in the same direction and have the same speed and the same displacement from the rest position . </li></ul>
  9. 9. Terms to describe wave motion <ul><li>Wavelength ( )(m): The shortest distance between any two points that are in phase. </li></ul><ul><li>Amplitude ( )(m): The maximum displacement from the rest or centre position. </li></ul>
  10. 10. Terms to describe wave motion <ul><li>Period ( )(s): The time taken for one point on the wave to make one oscillation. This is also the time taken to produce one complete wave. </li></ul>Period is the time taken for one point to complete one oscillation (Motion 1 to 4). Starting position Direction of wave Transverse wave 1 2 3 4 Starting position Direction of wave Longitudinal wave 1 2 3 4
  11. 11. Terms to describe wave motion <ul><li>Frequency ( )(Hz): Number of complete waves produced per second. </li></ul>Period of the wave
  12. 12. Terms to describe wave motion <ul><li>Wave speed ( )(ms -1 ): How quickly the wave propagates. </li></ul>Wave speed Frequency of the wave Wavelength of the wave
  13. 13. Terms to describe wave motion <ul><li>Wave front : An imaginary line on a wave that joins all points that are in the same phase. </li></ul><ul><ul><li>Usually drawn by joining all the wave crests. </li></ul></ul>
  14. 14. Terms to describe wave motion Direction of wave motion. Compression Rarefaction Crest Trough 1 wavelength 1 wavelength 1 wavelength 1 wavelength 1 wavelength Amplitude
  15. 15. Terms to describe wave motion Direction of wave Transverse wave A B Points A and B are in phase. They are 1 wavelength apart. Amplitude Amplitude Amplitude
  16. 16. Terms to describe wave motion Starting position Direction of wave Longitudinal wave 1 2 3 4 Amplitude Amplitude

×