You hear a loud noise at \(900 \mathrm{~Hz}\) and look up to see a bird diving toward you. You are able to identify the type of bird and you know that they usually make noise at around \(800 \mathrm{~Hz}\text{.}\) How fast is the bird moving?
A*R*C*S16.10.2.Flash of Lightning.
You see a flash of lightning strike a clock tower during a thunderstorm. You count \(2.5 \mathrm{~s}\) between when the lightning flashes and when you hear thunder with a sound level of \(70 \mathrm{~dB}\text{.}\) What is the sound level of the thunder for someone standing only \(20 \mathrm{~m}\) from the clock tower?
Activity16.10.3.Metacognitive Reflection: Waves.
The model you have been building for waves is an extension of the model for oscillations. Identify one key feature of the wave model that is the same as and another key feature of the wave model that is different from the oscillation model. For each feature, write a short (2-3) sentence reflection about how the models are similar and/or different.
