Tuesday, September 27, 2011

Waves

Based on the Wave on a String simulator on PhET.

1. which takes more energy, slow up and down, or fast up and down?
 Fast up and down uses more energy than slow up and down.
2. fast frequency corresponds to low energy or high energy?
 Fast frequency corresponds to high energy.
3. Determine the frequency of the provided wave(frequency 27, amplitude 50)in Hz?
 .98 Hz
4. Determine the frequency of the provided wave(frequency 100, amplitude 50) in Hz?
 3.7 Hz
5. Determine the frequency of the provided wave(frequency 27and amplitude 100) in Hz?
 .98 Hz
6. What is the wavelength of the provided wave(frequency 27, amplitude 50)in cm?
~61.5cm
7. What is the wavelength of the provided wave(frequency 100, amplitude 50)in cm?
~16.5cm
8. Describe the relationships between energy, frequency and wavelength. Include descriptions for relationships of all three.
Energy and frequency are directly related, meaning, as frequency increases so does the energy required to achieve that frequency. Frequency and wavelength have an inverse relation, as your frequency increases the distance between waves decreases (this also implies an inverse relationship between energy and wavelength).

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