Griffin Science » Sound

Sound Test Study Guide

Sam Harrelson — Thu, 11 Mar 2010 16:50:26 +0000

Our Test on Sound is Friday.

Here’s our study guide.

Enjoy and let me know if you have questions!

Sound Test Study Guide ;

Songs and Sound

Sam Harrelson — Thu, 04 Mar 2010 20:31:51 +0000

We’ll be continuing our studies of sound tomorrow, focusing on the components of a sound wave.

Additionally, we’ll be starting work on our own sound creations (or songs) in class.

If you’d like to get a head start, here are a couple of good online song editors (free):

- Myna from Aviary (My favorite)
- JamStudio (What We’ve Been Using in Class)

There’s also GarageBand on the Mac as well as Audacity (free) that works well on PC’s, Macs or Linux.

If you’re the enterprising sort, also check out Fission if you have a Mac.

See you (and hear you) tomorrow!

LRAD and the Sound Cannon

Sam Harrelson — Wed, 03 Mar 2010 00:29:14 +0000

Like anything, sound can be used as a weapon. This is especially true because sound is a disturbance of energy. In some cases, that energy can be at such high levels that it causes pain to humans.

In this case, the US Military has been experimenting with using the LRAD (Long Range Acoustic Device) as a deterrent to potential adversaries.

It’s not pleasant to talk about weapons, etc but there is some interesting science in this segment…

Tacoma Narrows Bridge Videos

Sam Harrelson — Wed, 03 Mar 2010 00:18:17 +0000

Few interesting videos we discussed in 8.2 this morning…

Homework for Wednesday March 3, 2010

Sam Harrelson — Tue, 02 Mar 2010 15:59:22 +0000

You have a quiz on 16.1 and 16.2 tomorrow.

Study!

Seeing Sound Waves

Sam Harrelson — Sun, 28 Feb 2010 16:20:27 +0000

Awesome:

(Turn Your Speakers DOWN!)