HW: RA 2.3
The weather cleared up enough to shoot rockets.
Went over lab and safety precautions.
Students shot rockets. Since we haven't yet gone over the method, the lab write-up will due on Tuesday of next week.
Wednesday, September 30, 2009
Wed Sept 30, 2009, IB Physics 1-1A
HW: RA 2.3
Problem sheet: 17, 18, 19, 20
Asked if there were questions on RA 2.2
Collected RA 2.2
Reviewed results of Picket Fence Lab
Showed how to calculate how fast using definition of acceleration in the form
vf = vi + a*t
which works if the acceleration is constant.
Did several examples of "how fast?" for dropping a ball, throwing a ball down, and throwing a ball up.
Showed how you can modify equation for distance: d = v * t into
displacement = v avg * t
in order to find how far you are and in what direction from your starting point.
If the acceleration is constant, which it is near the surface of the earth, and air resistance can be ignored, then v avg = (vi + vf)/2
Did several examples of finding "how far?"
This is the sus-it-out method which you will use in your rocket lab 1 (hopefully on Friday)
Gave students ~ 25 minutes in class to work on RA 2.3 and on problems from problem set.
Problem sheet: 17, 18, 19, 20
Asked if there were questions on RA 2.2
Collected RA 2.2
Reviewed results of Picket Fence Lab
Showed how to calculate how fast using definition of acceleration in the form
vf = vi + a*t
which works if the acceleration is constant.
Did several examples of "how fast?" for dropping a ball, throwing a ball down, and throwing a ball up.
Showed how you can modify equation for distance: d = v * t into
displacement = v avg * t
in order to find how far you are and in what direction from your starting point.
If the acceleration is constant, which it is near the surface of the earth, and air resistance can be ignored, then v avg = (vi + vf)/2
Did several examples of finding "how far?"
This is the sus-it-out method which you will use in your rocket lab 1 (hopefully on Friday)
Gave students ~ 25 minutes in class to work on RA 2.3 and on problems from problem set.
Tuesday, September 29, 2009
Monday, Sept 29, 2009 - 1A, 4A
HW: RA 2.2
Check Quia for practice problems on d, v, t, a
Stamped RA 2.1 for completion. Went over RA 2.1 in class.
Showed ball bearing in soap
Intro lecture on motion
avg speed = total distance traveled/total time
instantaneous speed = speed at a specific moment in time (read from speedometer or from graph of v vs t)
velocity = how fast and in what direction
distance = how far (how much gasoline you need)
displacement = how far and in what direction from starting point
acceleration
a = (vf-vi)/t or vf = vi + a * t
Did several examples including hourly wage and yearly pay raise example.
Students did Picket Fence Lab to get introduced to the computers and Vernier equipment.
If weather is good on Wednesday, we will do Rocket Lab
Handed out RA 2.2 due on Wednesday.
Check Quia for practice problems on d,v,t,a
Check Quia for practice problems on d, v, t, a
Stamped RA 2.1 for completion. Went over RA 2.1 in class.
Showed ball bearing in soap
Intro lecture on motion
avg speed = total distance traveled/total time
instantaneous speed = speed at a specific moment in time (read from speedometer or from graph of v vs t)
velocity = how fast and in what direction
distance = how far (how much gasoline you need)
displacement = how far and in what direction from starting point
acceleration
a = (vf-vi)/t or vf = vi + a * t
Did several examples including hourly wage and yearly pay raise example.
Students did Picket Fence Lab to get introduced to the computers and Vernier equipment.
If weather is good on Wednesday, we will do Rocket Lab
Handed out RA 2.2 due on Wednesday.
Check Quia for practice problems on d,v,t,a
Thursday, Sept 24, 2009 - 1A, 4A
HW: Finish unit conversion worksheet and compare to answer sheet
Do RA 2.1 for Monday
Skills needed in physics
Expressing large and small numbers using scientific notation and metric prefixes
Metric Prefixes worksheet - done in class
Showed video of Powers of Ten
Fermi number calculations of numbers of stars in Milky Way Galaxy
Express to impress for size of nucleus in atom the size of football field
Went over pitfalls in using a calculator
Unit conversion sheet
Unit conversion problem worksheet - please do before checking answers against answer sheet.
Handed out RA 2.1 due Monday
Do RA 2.1 for Monday
Skills needed in physics
Expressing large and small numbers using scientific notation and metric prefixes
Metric Prefixes worksheet - done in class
Showed video of Powers of Ten
Fermi number calculations of numbers of stars in Milky Way Galaxy
Express to impress for size of nucleus in atom the size of football field
Went over pitfalls in using a calculator
Unit conversion sheet
Unit conversion problem worksheet - please do before checking answers against answer sheet.
Handed out RA 2.1 due Monday
Tuesday, September 22, 2009
Tues, Sept 22, 2009 - IB Physics 1, Blocks 1A, 4A
No Homework for Thursday.
Collected graphs and data tables for Graphing of Round Objects Lab.
Took students to computer lab 448 where they did an Excel Spreadsheet Lab for Graphing Round Objects.
Collected graphs and data tables for Graphing of Round Objects Lab.
Took students to computer lab 448 where they did an Excel Spreadsheet Lab for Graphing Round Objects.
Thursday, September 17, 2009
Friday, Sept 18, 2009 - 1A, 4A
Homework: Finish Graph using all the elements of a good graph. Attach data table as the first page in the lab write-up.
Went around room asking what students told their parents about yesterday or what was their favorite demo.
In the Textbook Scavenger Hunt we have seen several interesting examples of Physics, but what is Physics?
Asked class.
Physics is an activity to search for RULES that EXPLAIN. SIMPLIFY and PREDICT the way nature works. Physics is about finding patterns and making predictions. Science is about finding relationships.
Science arose when humans found patterns in nature and were able to make predictions.
You can memorize a lot of data, or you can find relationships and rules.
Play : YOU CAN'T SAY THE RULE
If you uncover the rule you feel really good. If you can't, sometimes it can be frustrating.
Show Cosmos video about Erastosthenes.
Hand back RA 1 and go over.
Go over skills needed in Physics
Already mentioned method of rapid estimation
Graphing skills
Do round objects lab.
Went around room asking what students told their parents about yesterday or what was their favorite demo.
In the Textbook Scavenger Hunt we have seen several interesting examples of Physics, but what is Physics?
Asked class.
Physics is an activity to search for RULES that EXPLAIN. SIMPLIFY and PREDICT the way nature works. Physics is about finding patterns and making predictions. Science is about finding relationships.
Science arose when humans found patterns in nature and were able to make predictions.
You can memorize a lot of data, or you can find relationships and rules.
Play : YOU CAN'T SAY THE RULE
If you uncover the rule you feel really good. If you can't, sometimes it can be frustrating.
Show Cosmos video about Erastosthenes.
Hand back RA 1 and go over.
Go over skills needed in Physics
Already mentioned method of rapid estimation
Graphing skills
Do round objects lab.
Wednesday, September 16, 2009
Wednesday, Sept 16, 2009 - Blocks 1A, 4A
HW: Tell your parents 2 or 3 of the interesting things you learned in class today.
Collect RA Chpt 1
Hand back Textbook Scavenger Hunt
Go over Textbook Scavenge Hunt
Collect RA Chpt 1
Hand back Textbook Scavenger Hunt
Go over Textbook Scavenge Hunt
Subscribe to:
Posts (Atom)