G10 Waves P1
Upcoming SlideShare
Loading in...5
×
 

Like this? Share it with your network

Share

G10 Waves P1

on

  • 4,184 views

A set of slides created to teach G10 Waves P1 to learners at Bishops Diocesan College in Cape Town.

A set of slides created to teach G10 Waves P1 to learners at Bishops Diocesan College in Cape Town.

Statistics

Views

Total Views
4,184
Views on SlideShare
1,245
Embed Views
2,939

Actions

Likes
0
Downloads
23
Comments
0

7 Embeds 2,939

http://cnx.org 2896
http://siyavula.cnx.org 32
http://m.siyavula.cnx.org 5
http://www.slideshare.net 3
https://s13-us2.ixquick-proxy.com 1
http://webcache.googleusercontent.com 1
http://www.google.com.au 1
More...

Accessibility

Categories

Upload Details

Uploaded via as Adobe PDF

Usage Rights

CC Attribution License

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

G10 Waves P1 Presentation Transcript

  • 1. Waves Keith Warne
  • 2. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Transverse Pulse • A pulse is a ………. ……………….. in a medium. • A transverse pulse has the disturbance at ………… to the direction of movement. • The pulse shownmoves from left to right across the medium. • The particles of the medium move UP and DOWN.
  • 3. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Transverse Pulse • The pulse length () would be from the …………. to the …………………………... • The amplitude (A) is the ……………………… from position of ………... ………………………….. ……………………………
  • 4. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Longitudinal Pulse Longitudinal Pulse The disturbance is in the ……………………… as the wave motion. The particles vibrate………………………to the wave's velocity.
  • 5. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Displacement - time • Draw graphs of transverse position (y) vs time vs t, for a particle of a string or spring as a pulse move past it.
  • 6. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Displacement - time • Draw graphs of transverse position (y) vs time vs t, for a particle of a string or spring as a pulse move past it. Time (s) + - y y
  • 7. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Displacement - time • Draw graphs of transverse position (y) vs time vs t, for a particle of a string or spring as a pulse move past it. Time (s) + - y
  • 8. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Graphs of motion • Graphs of transverse position (y) vs time (y vs t) and velocity vs time (v vs t) , for a particle of a string or spring as a pulse moves past it. Time (s) + - y Time (s) + y -
  • 9. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Reflection of Pulses • …………………. takes place at a fixed end. • ……………………takes place at a free end. Fixed end Free end
  • 10. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Vibrations • Equilibrium position – B • Points of maximum displacement. A & C • Amplitude = distance from …………… position to point of …………….. displacement. • One full vibration. ……………………….. • Period (T) - time taken for one full vibration. (s) • Frequency (f) - number of full vibrations in one second. (Hz - vib/s) Vibrating Stick A B C period = …………… …………… frequency = …………… …………… T = …. ….
  • 11. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Pendulum • Velocity -time and acceleration time graphs for a pendulum motion. • Indicate the points A, B and C on these graphs. Time (s) Time (s) Time (s) A BC If a pendulum completes 12 full cycles in 3s. Calculate: frequency = ……………………… period = …………………………..
  • 12. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Transverse Waves Transverse Waves The disturbance is at 90o to the direction of movement. The particles vibrate perpendicular to the wave's velocity.
  • 13. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Frequency. waves time = 1.5wvs/1sec = 1.5 Hz Period. T = time/waves = 1 second/1.5waves = 0.66 s/wv Amplitude = 0.04m Transverse Wave One second ƒ= 4 cm One wave Half wave
  • 14. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Longitudinal Waves ……….……… ………………… A Longitudinal wave is a series of ……………………….. and ………………………………… that move through a medium. The DISTURBANCE is in the ……………………………….. as the direction of the wave (pulse).
  • 15. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Speed of the wave. • Symbol  (“…….”) - the ……………moved by any pulse in one ……………... • Units meters per second (……….). Speed = ………… x ……………….  = … x …. = ……………… = ………. …….. Transverse Wave - speed One second  = 5.5mm  = ƒ x  1/2  f = waves time = 1.5 1 = 1.5 Hz
  • 16. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Comparison wavelength
  • 17. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Interference 1 c) The pulses continue on their original paths. When two pulses arrive at the same point at the same time they combine into a single pulse with …………… the amplitude.
  • 18. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Interference 1 Constructive Interference • When a pulse and another pulse meet at a point • Displacements add up • A antinode (point of double displacement) is produced.
  • 19. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Double Source interference
  • 20. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Double slit interference
  • 21. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net
  • 22. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Standing Waves Fundamental frequecy fo f2 = ….. fo f 3= ……fo f4 = ….. fo f5 = …… fo fn = ….. fo  = 2 L  = ……L  = ……L  = ……L  = ……L  = ……L L ….. ….. …… …. …… …… L = ………
  • 23. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Properties of waves • Reflection - waves bouncing off a surface • Refraction - waves bending as they pass through a different medium. • Interference - waves interfering as they pass through another wave.
  • 24. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Reflection • Waves ………. (bounce) off the surface of objects in their paths. • The angle that waves are ………. (hit) the surface is the same as that with which they ……….off again. Angle of incidence
  • 25. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Refraction of waves • Waves ……………on entering a more dense medium. • If a wave strikes this medium at an ……………it then changes direction. Normal line 90° to the surface The wave bends …………………… the normal on entering a more dense medium at an angle. The waves bend ………………. ……………… the normal when exiting a more dense medium.
  • 26. SAMPLE ONLY SAMPLE ONLY SAMPLE ONLY For FULL presentation click HERE >> www.warnescience.net Hi - This is a SAMPLE presentation only. My FULL presentations, which contain a lot more more slides and other resources, are freely available on my resource sharing website: www.warnescience.net (click on link or logo) Have a look and enjoy! WarneScience