IB Physics 1 - Block 2

Start of new semester
Go to library and get textbooks, Conceptual Physics 8th edition
Students put names in textbook
Bring covered textbook to class tomorrow and receive 10/10 points.

Hand out seating chart
Pass out student profiles - students put in bin when complete

Pass out Parent Notice form - bring home, get signed, return tomorrow for 10 points credit.

Self-introduction
Overhead of salt dome. Talk about density of salt vs rock, oil vs water. Trap oil in sand beds up against salt dome. Morton salt girl, when it rains it pours. Salt shakes even when humid. Engineering disaster - Texaco and Morton salt.

1983 Area-wide lease sale in GOM. Mobil-Sohio left $91 Million on the table on their bid for SS357,

Seismic line for Baltimore Canyon. Model for sound - longitudinal wave. Sound travels faster in water than in air because molecules closer in water. In air, speed of sound is about 330 m/s, 1040 ft/sec. If you see a lightning flash, 1 km for every 3 seconds and 1 mile for every 5 seconds.
Speed of sound in water is 5000 ft/sec, 1500 m/s. The seismic line shows 2-way time. At a time of 2 seconds, the water depth is about 5000 ft.

Mentioned EIS for Ekati Diamond mine. Temperature of -40 C = -40 F (cold)

Went over course expectation sheet - students read fun parts.

Showed demo of magic jar. Not air pressure (showed that too) but in this case it is due to surface tension.

Showed penny and hex nut in balloon. Lots of physics - inertia, friction, frequency and pitch.

Showed stress analysis with polarizers and protractors. Classroom lighting is not polarized but light scattered from air molecules is. Went outside to test it. Also showed that light reflecting off shiny parts of car (glare) is polarized.

While outside, showed meeting place for fire and evacuation drill. Meet at fence near "No animals on turf field sign"

Back in classroom, finished going over course expectation form.