Difference between revisions of "2.1 (f)"
(New page: =Demonstration 1= With reference to a demonstration used in 2.1 (d) (speaker and 2 x microphone), knowing the frequency of the generated sound and placing the speakers one wavelength a...) |
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The use of the equation c = f ''x'' λ should be explained in the context of electromagnetic waves where ''c'' is the speed of light and questions should be given to the pupils. | The use of the equation c = f ''x'' λ should be explained in the context of electromagnetic waves where ''c'' is the speed of light and questions should be given to the pupils. | ||
===Analysis=== | ===Analysis=== | ||
| − | + | A full analysis of the uncertainities can be done on both methods with this experiment. Compare the reliability of both methods. | |
===Equipment=== | ===Equipment=== | ||
===Safety=== | ===Safety=== | ||
| − | + | =Syllabus= | |
[[Waves & Particles]] | [[Waves & Particles]] | ||
Latest revision as of 05:59, 1 November 2008
Demonstration 1
With reference to a demonstration used in 2.1 (d) (speaker and 2 x microphone), knowing the frequency of the generated sound and placing the speakers one wavelength apart, a value for the speed of sound can be calculated. This should then be compared to a set up where two micorphones are set up to a timer, so that when a piece of metal is hit, the first microphone starts the timer when the sound gets to it and when the sound gets to the second microphone it stops; knowing the distances between the microphones allows for a value of the speed to sound to be caulcated.
Resources
The use of the equation c = f x λ should be explained in the context of electromagnetic waves where c is the speed of light and questions should be given to the pupils.
Analysis
A full analysis of the uncertainities can be done on both methods with this experiment. Compare the reliability of both methods.
