Sound Worksheet

Sound Worksheet

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Wednesday's Class

In today's class we had a substitue for Ms.K. He went over the two worksheets that Ms.K gave us during Monday's class. they are Concept And Developement Practice Page 26-1 and Unit 1.3 Sound. I'll give the answers below. the substitute gave us two more work sheets. one is a word search and the other is called Sound Waves.


ANSWERS:

CONCEPT AND DEVELOPEMENT 26-1

1. longitudinal
2. pitch
3. 2.5
4. long
5. a) behind
b) 9 seconds
6. solids
7. 4 seconds
8 a) will not
b) every other push will oppose the motion of the swing
9. 220 hertz
10. slightly different frequencies
11. 4 hertz
12. 345.2 m/s



UNIT 1.3 SOUND


1. 344M/S
2. a) Velocity in wood: 4000m/s
b) Velocity in air: 340.4m/s
c) Wood is 12x faster
3. a) d=4.08 x 10^3m
b) d=4.16 x 10^3m
c) d=4.31 x 10^3m
d) d=4.01 x 10^3m
4. wavelength = 3.8 x 10^-3
5. d=640m
6. 13.3 Celcius
7. a) v=347m/s
b) v=323m/s
8) d=345m


Those are the answers for the two sheets from Monday's class. You should probably finish the two worksheets the Sub gave us today for tomarrows class because Ms.K will probably go over them.

Resonance

hi everyone.
in today's class we went over the vocabulary review.And also we read the yellow booklet from page 5 to 10. Mrs. K. told us to highlight some of the words because they were important. and tomorrow's class we have a lap if I am not mistaken. remember if you mist today's class checkout the answers for these questions below in the slideshow.



next scribe is Zaiza.

Reonance

Resonance

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Friday class...!

Hi everyone
I'm really sorry for posting late. First of all i came late in the class. I found students watching video about sound wave which was awesome. It was basically helpful because we learned lots of things that we didn't know before .We learn that at night time the frequency is lower than a day time, that why we hear people whispering from far away at night than a day time. It is one of thing that i was wondering. Later we wrote and handed in 5 to 7 things that we actually remember in the video.

Ms.Kozoriz handed back our tests and went over the answers, checking if anyone had any questions about it. For those of you who did well, congratulations and keep it up. I hope those who didn't do as well, they'll try their best next time!. Ms. Kozoriz putted up for me the answers for the test, but it wouldn't make much sense if you did miss Friday because you won't have your test in front of you. I would suggest getting your test from Ms. K when you can and then just compare your answers with someone in class if you have any questions about it. Ask your Friends or Ms. Kozoriz.


I don't really remember if we have homework, but I thing we'll correct lesson 15 vocabulary tomorrow.

Next scribe is Raya16

WEDNESDAY CLASS!

In today's class, Ms. Kozoriz gave us a new unit called Sound. We did a lab today about the sheet she gave us about making sound, and answered some questions about it. We did it with groups and predicted how sounds are produced with some of the objects we used like a ruler, a mallet and a tuning fork, and a cylinder with water. We made a sound with a ruler by putting the ruler at the table projecting it beyond the edge of the table and plucking it. We also made a sound to the tuning fork by smashing the mallet into it. Lastly, the cylinder with a water in different levels, by strongly blowing the top portion of the cylinder across it.



One last thing, she told us to read pages 3,4,5, and 6 in the new booklet called sound unit that she gave us in today's class.... So hope you all guys read it and have fun reading it.. :D





So the next scribe will be..... Flash3N