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https://effectuall.github.io/Simulations/Games/InteractiveWave
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Questions
Identify the measurements, a, b and c in the following diagrams:
- Write a sentence to define each of the following terms:
a. Wavelength.
b. Frequency.
c. Amplitude.
- Give one similarity and one difference between a longitudinal and transverse wave and give an example of each.
- For each of particles a, b, and c in the diagram decide if the particle is moving up, moving down, or is momentarily stationary.
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https://effectuall.github.io/Simulations/Games/InteractiveFormula
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Questions
- Calculate the speed of the following waves:
a. A water wave of wavelength 1 m and frequency 2 Hz.
b. A water wave of wavelength 3 m and frequency 0.4 Hz.
- Rearrange the formula wave speed = frequency × wavelength to read:
- wavelength = _____.
- frequency = ______.
- Calculate the frequency of a sound wave of speed 340 m/s and wavelength:
- 2 m.
- 0.4 m.
- Calculate the wavelength of a light wave of speed 300 000 000 m/s and frequency:
- $4.62 × 10^{14}$ Hz.
- $8.10 × 10^{14} \text{ Hz}$
- Calculate the speed of the following waves. Why might we say that all of these waves belong to the same family?
a. Wavelength $10 \text{ m}$, frequency = $3 × 10^{7} \text{ Hz}$
b. Wavelength $4 × 10^{-3} \text{ m}$, frequency = $7.5 × 10^{10} \text{ Hz}$
c. Wavelength $6 × 10^{-10} \text{ m}$, frequency = $5 × 10^{17} \text{ Hz}$
- In the sonar experiment, the echo takes 0.3 s to return from the sea floor. If the sea is 225 m deep, show that the speed of sound in seawater
is about 1500 m/s.
- A radar station sends out radio waves of wavelength 50 cm and frequency $6 × 10^{8} \text{ Hz}$ .
They reflect off an aircraft and return in $4.7 × 10^{–5}$ s. Show that the aircraft is about 7 km from the radar transmitter.
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Understanding Waves