How can so many different sounds be coming from the needle and the record when you spin it?
- Do Now– Copy down today’s homework assignment in your planner. Get out your ISN and add to the Table of Contents- “Model p.30” (Left Side); Head page 30 properly with “Model- 12/5/17.”
- Complete Investigations 1-3- Let’s look at the record and needle again to see if its vibrations are changing as it produces different sounds…We’ll look again at the Michael Jackson video of the closeup of the needle on the record. This time, look to see differences in the frequency or amplitude of the vibrations of the needle as it produces sound. Answer questions Q3-Q6 in handout. Look through the procedure for Investigation 2. Complete it with a partner. When you are done with Investigation 2, send one partner to the demonstration desk to get a copy of the photograph of the surface of the record. You will be able to write, label, & draw on this photograph so be prepared so share your findings.
- Model– How can so many different sounds be coming from the needle and the record when you spin it?
STUDY for the Sound Source Quiz tomorrow 12/6– ISN pages 15-31