1 / 23

WAVES

WAVES. WAVES. KEY TOPICS DEFINITION OF WAVES WAVE PARAMETERS – f, T, A, l PHYSICAL PROPERTIES WAVE SPEED WAVE TYPES. VIDEO. A WAVE PULSE ON WATER. WORK & ENERGY. WORK THE PRODUCT OF THE FORCE ON AN OBJECT AND THE DISTANCE THAT IT MOVES ENERGY THE ABILITY TO DO WORK. VIDEO.

aira
Download Presentation

WAVES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. WAVES

  2. WAVES KEY TOPICS DEFINITION OF WAVES WAVE PARAMETERS – f, T, A, l PHYSICAL PROPERTIES WAVE SPEED WAVE TYPES

  3. VIDEO A WAVE PULSE ON WATER

  4. WORK & ENERGY • WORK THE PRODUCT OF THE FORCE ON AN OBJECT AND THE DISTANCE THAT IT MOVES • ENERGY THE ABILITY TO DO WORK

  5. VIDEO THIS VIDEO SHOWS THAT A WAVE ON A SLINKY CARRIES ENERGY

  6. WAVE DEFINITION A WAVE IS A DISTURBANCE IN A MEDIUM THAT CARRIES ENERGY FROM ONE PLACE TO ANOTHER THE MEDIUM IS UNCHANGED AFTER THE WAVE HAS PASSED

  7. SINUSOIDAL WAVES • THE SINUSOIDAL WAVE MODEL CAN BE USED TO DEMONSTRATE THE PARAMETERS NEEDED TO DESCRIBE WAVES. • THESE WAVES POSSESS THE SHAPE OF A SIMPLE SINE CURVE.

  8. WAVE PARAMETERS THE FOLLOWING PARAMETERS ARE USED TO DESCRIBE WAVES AMPLITUDE WAVELENGTH FREQUENCY PERIOD

  9. DEMONSTRATION WAVE PARAMETERS CAN BE DEMONSTRATED USING THE PhET SIMULATION

  10. FREQUENCY THE RATE OF VIBRATION OF THE MEDIUM OR THE SOURCE SYMBOL – f UNIT - Hz

  11. PERIOD THE TIME FOR ONE COMPLETE VIBRATION SYMBOL – T UNIT - SECOND

  12. PERIOD AND FREQUENCY f = n / t T = t / n Thus T = 1 / f or f = 1 / T They are reciprocals

  13. AMPLITUDE THE MAXIMUM DISPLACEMENT OF THE MEDIUM FROM THE REST POSITION SYMBOL – A UNIT - METER

  14. WAVELENGTH THE DISTANCE BETWEEN ADJACENT LIKE POINTS ALONG THE WAVE SYMBOL – l UNIT - METERS

  15. PHYSICAL PROPERTIESOF WAVES WHEN A WAVE ENCOUNTERS A BOUNDARY BETWEEN TWO MEDIA THE ENERGY CAN BE: REFLECTED TRANSMITTED ABSORBED

  16. WAVELENGTH & FREQUENCY THE FREQUENCY AND WAVELENGTH ARE INVERSELY PROPORTIONAL THIS CAN BE DEMONSTRATED WITH THE PhET WAVE DEMONSTRATION

  17. QUESTION DIPPING YOUR FINGER INTO WATER FASTER AND FASTER CAUSES THE WAVELENGTH OF THE WATER WAVES TO _____ . A. SHORTEN B. LENGTHEN C. STAY THE SAME

  18. SPEED OF WAVES • DEPENDS ON THE PROPERTIES OF THE MEDIUM • IF THE PROPERTIES OF THE MEDIUM DO NOT CHANGE THEN THE SPEED OF THE WAVE IS CONSTANT. SYMBOL – c UNIT – METER/SECOND

  19. TYPES OF WAVES • TRANSVERSE THE MEDIUM VIBRATES PERPENDICULAR TO THE DIRECTION OF TRAVEL OF THE WAVE. • LONGITUDINAL THE MEDIUM VIBRATES PARALLEL THE DIRECTION OF TRAVEL OF THE WAVE.

  20. VIDEO THIS SIMULATION SHOWS TRANSVERSE AND LONGITUDINAL WAVES

  21. VIDEO THIS VIDEO SHOWS THAT SOME WAVES ARE A COMBINATION OF TRANSVERSE AND LONGITUDINAL

More Related