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# 6.1 What is a wave?

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Introduce waves as disturbances that transfer energy, Introduce software used in the unit to revise the link between pitch and frequency, Demonstrate transverse and longitudinal waves

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### 6.1 What is a wave?

1. 1. The wave model of radiation<br />21st Century Physics<br />
2. 2. 10 October 2010<br />6.1 What is a wave?<br />How many types of wave have you heard of in everyday use?<br />Do they have anything in common?<br />
3. 3. Aims<br />Introduce waves as disturbances that transfer energy<br />Introduce software used in the unit to revise the link between pitch and frequency<br />Demonstrate transverse and longitudinal waves<br />
4. 4. Introduction to waves<br />
5. 5. What is a wave?<br />A wave is a disturbance moving through a material<br />
6. 6. What causes a wave?<br />The source of a wave is always something thatvibrates<br />The material that the wave travels through is called the medium<br />
7. 7. phet.colorado.edu<br />
8. 8.
9. 9. Low frequency, high period<br />High frequency, low period<br />
10. 10. Transverse<br />T<br />
11. 11. Transverse<br />The particles of the medium vibrate at right angles (perpendicular) to the direction in which the wave moves<br />
12. 12. aLong<br />Longitudinal<br />
13. 13. Longitudinal<br />The particles vibrate (oscillate) back and forth creating a continuing wave of pulses<br />
14. 14.
15. 15.
16. 16.
17. 17.
18. 18. Water waves<br />
19. 19. Homework<br />