Saxby out today.
Watch Veritasium's World's Roundest Object. Pause and answer the questions below...
Katie Green with Si-28, 1 kg sphere.
On a separate 8-1/2" x 11" record and answer these questions:
1. If the silicone sphere in the video was scaled up to the size of the Earth, what would be the vertical distance from the highest mountain to lowest valley?
2. What is "The Big K"?
3. What problem occured with the kg in 1948?
4. What are the 7 base SI units?
5. Avogadros constant, the mole (abbreviated mol) is equal to the number of atoms in ___________________________.
6. The video suggests defining the kg not as a physical object but as the mass of ___________________ atoms of silicone-28. To calculate this number, make conversion factors out of the following equalities:
1000 g = 1 kg
1 mol = 28 g (for Si-28)
6.02 x 1023 atoms = 1 mol
1 kg = ? atoms of Si-28.
(Time permitting, watch When We Left Earth.)
HW #1: See Veritasium Video, and answer questions above.
Return and go over Intro to Forces Test.
Do Mass and Weight Pre-Entry.
International kg Standard
HW#2: Make sure you have Mass and Weight Post-Entry up to date. Then do Elevator Trouble.
The original proponent of the metric system: Jerome Lalande.
"I am water-proof to insults, but a sponge for praise."
Delambre and Mechain worked for seven years to bring us the meter.
The 7 metric units are all that is required to measure any physical quantity we have ever encountered!
Go over Elevator Trouble.
HW #3: Do Centripetal Acceleration Equation.
Go over Intro to Forces Test.
Start diagnostic forces quiz.
HW #4: Do Centripetal Acceleration Puzzler.
Watch Episode 7: From the Earth to the Moon (in computer.)
Finish diagnostic forces quiz.
Do Centripetal Acceleration Derivation Entry.
G-Force Training Video.
HW #5: Do Centripetal Acceleration Applications Pre-Entry, through the Exploration. Fill out permission forms and bring them to school Tues. If you don't want to be videotaped, don't sign the forms.
Go over Centripetal Acceleration Puzzler.
Finish Centripetal Acceleration Applications Post-Entry.
Hollowman Air Force Base Centrifuge
Holloman AF Base Centrifuge trained 30,000 people from 1988-2010.
HW #6: Do Riding the Gravitron.
Fill out permission forms and bring them to school Wed (if you didn't already turn them in today.) If you or your parents don't want you to be videotaped, don't sign the forms.
Watch centrifuge video.
Go over Riding the Gravitron.
HW #7: Sketch out the Centripetal Acceleration Lab in your PJ.
Do Centripetal Acceleration Lab.
Then go over Riding the Gravitron.
HW #8: Do Tetherballs.
Do Introduction to Static and Kinetic Friction Lab Pre-Entry.
HW #9: Finish Introduction to Static and Kinetic Friction Lab Pre-Entry.
Go over Introduction to Static and Kinetic Friction Lab Pre-Entry.
Start discussion of Kinetic Friction Lab Pre-Entry.
Do Kinetic Friction Lab Pre-Entry.
HW #10: Finish Kinetic Friction Lab Pre-Entry.
Finish Kinetic Friction Lab Post Entry.
HW#11: Advanced Forces Practice Midterm 1 Start preparing for Advanced Forces Midterm next Tues.
Go over Advanced Forces Practice Midterm 1.
HW #12: Do Advanced Forces Practice Midterm 2.
Go over Advanced Forces Practice Midterm 2.
HW #13: Start RC Car Racing Entry, through Theory.
Go over Solutions to Adv Force Practice Midterm 1 and Solutions to Adv Force Practice Midterm 2.
Work on RC Car Racing Entry
HW #14: Do Losing Weight.
Do RC Car Racing Entry
HW #15: Finish RC Car Racing Entry.
Go over Losing Weight.
Do Impulse Lab Pre-Entry.
HW #16: Finish Impulse Lab Pre-Entry.
Go over the Impulse Lab Pre-Entry.
Do The Conservation of Momentum Pre-Entry.
HW #16: Finish The Conservation of Momentum Entry. Do Impulse and Momentum Problems
Go over The Conservation of Momentum Entry and Impulse and Momentum Problems Solutions.
HW #17: Do Momentum Practice.
Go over Momentum Practice.
Review for tomorrow's midterm...
HW: Put together HW PK#2. Review Advanced Forces Practice Midterm 1 and Advanced Forces Practice Midterm 2
Review Session after school: 2-3:30.
Turn in HW PK#2.
Advanced Forces/Momentum Midterm 200 pts
No HW: Have a wonderful spring break! When you get back we will start talking about Energy...