Difference between revisions of "Period"
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<math>T = 0.024s</math> | <math>T = 0.024s</math> | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Period (waves), page 190, GCSE Combined Science Trilogy; Physics, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Period (waves), page 227, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10150 ''Period (waves), pages 219, 220, GCSE Combined Science; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Period of a wave (T), page 183, GCSE Physics, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Period of wave, pages 257, GCSE Combined Science Trilogy 2, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac356 ''Period, page 73, GCSE Physics; The Revision Guide, CGP, AQA ''] | ||
Revision as of 20:54, 10 November 2019
Contents
Key Stage 3
Meaning
A period is the time taken for one complete wave to pass a point.
About Periods
Key Stage 4
Meaning
A period is the time taken for a single oscillation to occur.
About Periods
- A period is a scalar quantity because it has magnitude but no direction.
- The SI Unit of a period is seconds.
- Period may refer to the time taken for an oscillating object such as a pendulum or mass on a spring to make one full oscillation.
- Period may refer to the time taken for one wave to pass a point.
Equation
NB: You do not need to remember this equation but you should be able to find the period of a wave using the frequency.
Period = 1/(Frequency)
\(T = \frac{1}{f}\)
Where:
f = Frequency
T = time period (the time it takes for one wave to pass a point).
Example Calculations
| A wave has a frequency of 0.2Hz. Calculate how long it takes for one wave to pass a point. | The E-string on a bass guitar is plucked to produce a sound with a frequency of 41.25Hz. Calculate the time it takes for the E-string to make one full oscillation. |
| 1. State the known quantities
f = 0.2Hz |
1. State the known quantities
f = 41.25Hz |
| 2. Substitute the numbers into the equation and solve.
\(T = \frac{1}{0.2}\) \(T = 5s\) |
2. Substitute the numbers into the equation and solve.
\(T = \frac{1}{40}\) \(T = 0.024s\) |
References
AQA
- Period (waves), page 190, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Period (waves), page 227, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Period (waves), pages 219, 220, GCSE Combined Science; The Revision Guide, CGP, AQA
- Period of a wave (T), page 183, GCSE Physics, Hodder, AQA
- Period of wave, pages 257, GCSE Combined Science Trilogy 2, Hodder, AQA
- Period, page 73, GCSE Physics; The Revision Guide, CGP, AQA