Friday, September 25, 2009

September 24th and 25th

Today we turned in our first ten points of homework and then began the International Boiling Point Project. We got into groups and discussed four possible factors that could affect the boiling point of water.

These factors were 1) the temperature of the room, 2) the amount of water to be boiled, 3) the altitude of the boiling location and 4) the type of stove used to heat the water.

Each group came up with their hypothesis based upon what they thought was the most important factor--we then practiced performing the experiment.

We will do the experiment for real on Tuesday/wednesday.

Monday, September 21, 2009

Sept 18th and 21st

Today we diagrammed and labelled compressions, rarefactions and wavelengths of a longitudinal wave. We then worked on two labs, the quicklab on page 12 and the wave speed lab on page 20. We also completed our puzzle piece for our classroom posters.

Students who missed this class should read sections one and two of chapter one and complete the section review questions.

We announced that there will be a quiz on diagramming both transverse and longitudinal waves on the 22nd and 23rd and we announced that the chapter one test will be October 5th and 6th.

Wednesday, September 16, 2009

September 14th-17th

On the 14th and 15th we took our safety quiz, then reviewed our lab activity by sharing and comparing our data. Finally we experimented with our film cannister cannon.

On the 16th and 17th we began to work in chapter one of the "Sound and Light" book. We looked at examples of transverse and ocean waves, and diagrammed a transverse wave. We defined crest, trough, wavelength and amplitude.

We also practiced using the sq3r reading method as we started to read chapter one, section one.

Finally, we did a human wave, and pointed out crests, troughs and wavelength, then we switched gears and worked on the helium hoop activity.

Thursday, September 10, 2009

September 10th-11th--our first lab

Today we received our textbooks (Sound and Light), read pages 138-139 about the scientific method, and then worked on a lab that investigated pendulums. We looked at the effects on the period of vibration of a pendulum when we changed 1) the mass on the pendulum, 2) the arc length we swung the pendulum and 3) the length of the pendulum itself.

The lab will be due on Monday for A day classes, Tuesday for B day classes and it must be in our class lab format.