Intro to what is physics
Can't say the rule
Cosmos video
Explained and went over Sun Lab
Wednesday, February 23, 2011
Thursday, February 10, 2011
Thursday, Feb 10, 2011
Collected Sun Lab Reports
Wrote up new Lab description with everything in correct order but most students did not need it.
Went over Textbook Scavenger Hunt:
1. Roemer and speed of light
2. Black hole box - singularities (North Pole)
3. Number of Earths that span Sun, number of Suns that span the Earth-Sun distance, definition of meter to get scale of Earth
4. Graphs - make line graphs to find relationships between variables. Best graph is a straight line through the origin because then the mathematical relationship is y = mx
Showed how to deal with units of slope and area for velocity vs time graph.
5. Exponential gain - derived equation
6. Forgot to show butterfly effect - do that tomorrow
7. Express to impress - relative sizes of nucleus and hydrogen atom
8. Definitions - work
9. Can't see atoms in visible light - probing device is too large.
10. Fermi number calculation
11. Density - sink or swim
12. Demo with hot/room/cold water
Santa Poem
Thumbs up for Santa, Right
Fingers curl, spin day to night
These same fingers also show
The way around the Sun we go
HW - Tell parents about 1 or 2 things we discussed today.
Wrote up new Lab description with everything in correct order but most students did not need it.
Went over Textbook Scavenger Hunt:
1. Roemer and speed of light
2. Black hole box - singularities (North Pole)
3. Number of Earths that span Sun, number of Suns that span the Earth-Sun distance, definition of meter to get scale of Earth
4. Graphs - make line graphs to find relationships between variables. Best graph is a straight line through the origin because then the mathematical relationship is y = mx
Showed how to deal with units of slope and area for velocity vs time graph.
5. Exponential gain - derived equation
6. Forgot to show butterfly effect - do that tomorrow
7. Express to impress - relative sizes of nucleus and hydrogen atom
8. Definitions - work
9. Can't see atoms in visible light - probing device is too large.
10. Fermi number calculation
11. Density - sink or swim
12. Demo with hot/room/cold water
Santa Poem
Thumbs up for Santa, Right
Fingers curl, spin day to night
These same fingers also show
The way around the Sun we go
HW - Tell parents about 1 or 2 things we discussed today.
Wednesday, February 9, 2011
Wed Feb 9, 2011
BULA!
Hand back Course Expectation Quizzes
Beautiful day for the Sun Lab
Went over how to gather data, how to calculate the uncertainty using the min max method, how to calculate the uncertainty using the method of relative uncertainty.
Went outside and did the lab.
Lab write-up due tomorrow:
Name:
Partners:
Date:
Name of Lab: Sun Lab
Data Table:
(In data table format)
distance from hole to screen (cm): L +/- delta L
diameter of image (cm) D +/- delta D
Calculations:
Min Max Method:
Max value of ratio = (L+deltaL)/(D-deltaD)
Min value of ratio = (L-deltaL)/(D+deltaD)
Ratio = (Max+Min)/2
Unc = (Max-Min)/2
Value = ratio +/- unc (given to correct number of sig figs and decimal points)
Method of Relative Uncertainty
Ratio = L/D
unc = ratio *(deltaL/L + deltaD/D)
Value = ratio +/- unc (given to correct number of sig figs and decimal points)
Conclusions:
The number of Suns that span the distance from the Earth to the Sun, as calculated by the Min Max Method = ratio +/- unc
The number of Suns that span the distance from the Earth to the Sun, as calculated by the Method of Relative Uncertainty = ratio +/- unc
Hand back Course Expectation Quizzes
Beautiful day for the Sun Lab
Went over how to gather data, how to calculate the uncertainty using the min max method, how to calculate the uncertainty using the method of relative uncertainty.
Went outside and did the lab.
Lab write-up due tomorrow:
Name:
Partners:
Date:
Name of Lab: Sun Lab
Data Table:
(In data table format)
distance from hole to screen (cm): L +/- delta L
diameter of image (cm) D +/- delta D
Calculations:
Min Max Method:
Max value of ratio = (L+deltaL)/(D-deltaD)
Min value of ratio = (L-deltaL)/(D+deltaD)
Ratio = (Max+Min)/2
Unc = (Max-Min)/2
Value = ratio +/- unc (given to correct number of sig figs and decimal points)
Method of Relative Uncertainty
Ratio = L/D
unc = ratio *(deltaL/L + deltaD/D)
Value = ratio +/- unc (given to correct number of sig figs and decimal points)
Conclusions:
The number of Suns that span the distance from the Earth to the Sun, as calculated by the Min Max Method = ratio +/- unc
The number of Suns that span the distance from the Earth to the Sun, as calculated by the Method of Relative Uncertainty = ratio +/- unc
Tuesday, February 8, 2011
Tues Feb 8, 2011
Start with a BULA! and Say Something Nice to Your Partner
Collect Parent Notification Forms
Collect Course Expectation Forms
Check for Textbook Covers
Those without covers by Wednesday will stay after school in my classroom and put on a cover.
Quiz on Expectations
Asked who told their parents about any demo we did yesterday.
Students did Textbook Scavenger Hunt - due at end of period.
Collect Parent Notification Forms
Collect Course Expectation Forms
Check for Textbook Covers
Those without covers by Wednesday will stay after school in my classroom and put on a cover.
Quiz on Expectations
Asked who told their parents about any demo we did yesterday.
Students did Textbook Scavenger Hunt - due at end of period.
Monday, February 7, 2011
Mon Feb 7, 2011
HW due tomorrow:
Hand in signed course expectation form
Hand in signed Parent Notification form
Cover textbook
Do Quia quiz on A1 General Knowledge
Try Quia quiz on Day 1 Review
Quiz tomorrow on Expectations.
Hand out:
Student Profile - Students complete and put in bin for 10 pts
Course Expectation Form
Student and Parent Form for Course Expectations - students return for 5 pts
Parent Notification Form - Students return one signed copy for 10 pts. (Keep the other at home since it has my contact info)
Go over Expectation Form in some detail
Quiz tomorrow on Expectation Form
Hand out Quia Passwords
Assign Quia Quiz on A1 - General Knowledge
Tried showing demos
Demo: Magic Jar
Plastic sheet stays due to air pressure
Idea: Air is made of matter - in fact, air is about 20% oxygen and 80% nitrogen
All matter is made of small particles called atoms
Demo: Stream of water is attracted to charged strip
Idea: This shows electrical nature of matter - water is the Mickey Mouse molecule with a plus side (at the ears, hydrogen) and a negative side (at the head, oxygen). The molecule rotates to present the opposite charge to the charged strip.
Demo: straw charged by sweater on plastic bottle. Straw is attracted to finger. Finger has water in it. Idea of charge polarization.
Demo: 2x4 attracted to charge ebonite rod. Also due to charge polarization.
Demo: Magic Jar
If I remove the plastic sheet, the water stays. This is due to cohesion (attraction between like atoms)
Showed diagram of origin of surface tension
Showed meniscus from water (adhesion greater than cohesion) and that of mercury (cohesion greater than adhesion)
Demo: Van de Graaff
Idea - like charges repel
Hand in signed course expectation form
Hand in signed Parent Notification form
Cover textbook
Do Quia quiz on A1 General Knowledge
Try Quia quiz on Day 1 Review
Quiz tomorrow on Expectations.
Hand out:
Student Profile - Students complete and put in bin for 10 pts
Course Expectation Form
Student and Parent Form for Course Expectations - students return for 5 pts
Parent Notification Form - Students return one signed copy for 10 pts. (Keep the other at home since it has my contact info)
Go over Expectation Form in some detail
Quiz tomorrow on Expectation Form
Hand out Quia Passwords
Assign Quia Quiz on A1 - General Knowledge
Tried showing demos
Demo: Magic Jar
Plastic sheet stays due to air pressure
Idea: Air is made of matter - in fact, air is about 20% oxygen and 80% nitrogen
All matter is made of small particles called atoms
Demo: Stream of water is attracted to charged strip
Idea: This shows electrical nature of matter - water is the Mickey Mouse molecule with a plus side (at the ears, hydrogen) and a negative side (at the head, oxygen). The molecule rotates to present the opposite charge to the charged strip.
Demo: straw charged by sweater on plastic bottle. Straw is attracted to finger. Finger has water in it. Idea of charge polarization.
Demo: 2x4 attracted to charge ebonite rod. Also due to charge polarization.
Demo: Magic Jar
If I remove the plastic sheet, the water stays. This is due to cohesion (attraction between like atoms)
Showed diagram of origin of surface tension
Showed meniscus from water (adhesion greater than cohesion) and that of mercury (cohesion greater than adhesion)
Demo: Van de Graaff
Idea - like charges repel
Sunday, January 2, 2011
Friday, Jan 7, 2011
Students worked on Concept Dev sheets (due today)
Students worked on Problems
Students worked on the Energy Quias
Students worked on Problems
Students worked on the Energy Quias
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