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A Ho, J Wong & H Yu. Your names are on the list of students that didn't pay. Verify you have documentation of payment and make sure you clear it up after break.
A Ho, J Wong & H Yu. Your names are on the list of students that didn't pay. Verify you have documentation of payment and make sure you clear it up after break.
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DoNow: What physics principal is most responsible for guiding the design and construction of your vehicle?
Period | Fastest | Awesome | Greatest FAIL |
1st | Jesse | Kaizena | Dylan |
3rd | Francis | Peter | Bebe |
DoNow: Submit Mix-Up HW & Speed of Sound Harmonics Deliverable.
Period | Class Average | Top Performer |
1st | 62.9 % | Haley & Donald |
3rd | 62.2 % | Jacky & Francis |
DoNow: What type of problem is the most difficult for you to solve. Create a similar problem.
DoNow: A sound wave resonates in a bottle with a closed and open end. What is the effect of a tube length measurement shorter than is actually resonating? Explain. What is the effect of increasing the temperature of the air on the wave length? Explain.
DoNow: A car making a 40 Hz sound is going to drive past you at 13 m/s while you are waiting on the sidewalk. You are making a 40 Hz humming sound. What beat frequency do you and those around you experience? (notes)
DoNow: A car is driving past you while you are waiting on the sidewalk. A 40 Hz sound is heard as the car approaches at 30 mph or 13.4 m/s. What frequency sound do the passengers in the car experience? (notes)
DoNow: What are the conditions for, and effects of, constructive and destructive interference.
DoNow: A whistle has a closed end where the lips are blowing air through and an open end where air is exhausted. Why do you think Joe must make a whistle that is 1/4 of a wavelength for the amplitude to produce a loud pitch? (notes)
DoNow: Read and complete Wave Equation Reading & WS.
DoNow: What is the difference between wave propagation speed and wave frequency? Why do you think some students get them confused? (notes)
DoNow: When you hear a sound, what is being detected by your ears? When you hum, what is being produced by your body?
DoNow: Neptune has a mass of 1.03 x10^26 kg and orbits the solar system 4.5 x10^12 m from the Sun, which as a mass of 1.99 x10^30 kg. Calculate the orbital velocity and time period of Neptune's orbit. (Kepler notes)
DoNow: What are the time period equations for a an object orbiting a mass, a mass oscillating on a spring and a mass swinging as a pendulum? If you were to graph the period of a mass oscillating on a spring, what would you use for the x and y axis? Explain. (notes)
DoNow: Whiteboard the Simple Harmonic Motion Graph problem.