Physics 1 — Calendar Update

Due to exceptional student understanding of materials presented in chapters 20 and 21, I have decided to bump up the test date for those chapters to Thursday, March 20th.

Summarily, there will be a review game tomorrow and I will post the game file along with solutions to all the questions by tomorrow afternoon. Extra credit will be granted by performance in this game.

Review Game

Solutions

YouTube Explanations

AP — Weekend HW

Here are the three problems for homework. The solution will be posted Sunday evening.

  1. What are the sound intensity levels of two sounds. One of 1×10-12 W/m2 and one 5×10^-6 W/m^2?
  2. (a) What is the difference in the intensity levels if the intensity of a sound is doubled? (b) By what factor does the intensity increase for intensity level differences of 10 dB and 20 dB?
  3. Sitting at a sidewalk restaurant table, a friend talks to you at a normal 60 dB. The sound of the street reaching your ears is another 60 dB. What is the total sound intensity that reaches your ears?

Solution Video