4-15-09

Welcome to Wednesday! Today when I walked into Physics class, Mr. Manning had the following schedule on the board for today's class: 1. collect any rides 2. quiz reminder 3. permission slip reminder 4. daily question 5. finish reviewing waves 6. characteristics lab

As we discussed the daily questions, Mr. Manning brought out more of his physics toys for demonstrations! (pictures below) The daily questions were: Which direction will a point move on a transverse wave (energy transfer to the right)? and Which direction will a point move on a longitudinal wave (energy transfer to the right)?

Next, we were instructed to take out page 2 from yesterday, entitled Waves!!! Notes. This is the notes page on waves that we worked on yesterday during class. We watched a video online and filled in the empty blanks with spaces. The answers are: 1. moving mass 2. a transfer of energy 3. a) a disturbance, b) multiple waves 4. a) mechanical, b) electromagnetic, c) matter 5. a) matter, b) electromagnetic, c) mechanical 6. a) transverse, b) longitudinal, c) surface 7. a) longitudinal, b) transverse, c) surface 8. (involved drawing waves) 9. frequency- # of cycles per second, period- time it takes for 1 complete wave to pas a given point, amplitude- the distance from the center or trough 10. a and b) (involved drawing waves) 11. change the wavelength or the period 12. wavelength increases- they hit they you less often, so they must be farther apart 13. period decreases- they hit you more often, so the time is shortened

Demonstration from the Daily Question

After reviewing those notes on waves, Mr. Manning introduced us to the Mechanical Wave Characteristics Lab, which we began today. We read the entire lab quietly to ourselves then made our predictions on pages 4 and 6.


 * Reminder-- tomorrow we have a short quiz on waves. Also, the first part for the roller coaster project is due Friday!!