In 2nd semester physics, we are moving on to sound waves and with that energy, power, and intensity.
My goals is to juxtapose two things we know… one from everyday life and another from our last unit on oscillations.
— what can damage our hearing at a loud concert (volume, proximity, pitch, duration)
– what makes oscillations more energetic (amplitude and frequency)
We will look at oscillations at different proximitues to graph amplitude vs distance from source.
We will also look at different frequency graphs of same amplitude and of same duration.
This will raise two questions for us: Why does amplitude go down with distance? How do higher frequencies of similar amplitude transmit more total energy in same duration?
–> I’m going to lean on some invention tasks and direct instruction to get us learning about and distinguishing energy, power, and intensity.
We will return to the questions above once we have the intensity tool.
I want /need to navigate this toward problem solving of the type where a speaker has a certain power output, how much energy is being delivered to ear each second depending on how far they are from the source.