Physics I Honors
Chapters 7 & 8
(Sections 7.4, 7.5, 8.1 & 8.2 only)
Other Chapters
Color Key
Black: In Class
Green: Due/Test
Red: Homework
Blue: Related links
Updated 2.6.2011
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- 5th/6th
- Intro. to chapter 7
- Circular motion: defining centripetal acceleration and centripetal force
- Why centrifugal forces are fictional forces
- *Example problems with centripetal accelerations and centripetal forces
- Centripetal forces are always supplied by some other force like tension, friction, springs, etc.
- 7th
- *Example problems with centripetal accelerations and centripetal forces
- Centripetal forces are always supplied by some other force like tension, friction, springs, etc.
Monday, January 25
- 5th
- More circular motion examples
- 6th/7th
- More circular motion examples
- Intro. to circular motion lab
- *Circular motion lab
Tuesday, January 26
- 5th
- P. 219; 15–16, 19–22
- Collect problems
- Universal Gravitation - a primer (Keynote presentation)
- Why do astronomy? Predicting events is power! Stonehenge (1400 BCE), Zodiac (1000 BCE), Kings hired astronomers to figure out events. During colonial times astronomy was the only science taught.
- Tycho Brahe's observatories.
- Given island of Hven by the king of Denmark and made very accurate observations of celestial bodies.
- Had a fake nose because he lost his in a duel over who was a better mathematician.
- Died at a party from a burst bladder.
- Kepler was Brahe's assistant. He wasn't much of an observer - childhood smallpox left him with weak vision but his ability as a mathematician was unrivaled. He first proposed elliptical orbits and took over some official duties Brahe had to some monarchs as court astrologer.
- Early models of the solar system
- Ptolemeic - epicycles, etc was geocentric with all circles. If we revolved around sun then star background would grow and shrink as we get closer and farther away in our orbit.
- Copernican - heliocentric with ellipses; phases of Venus sealed the deal that this is the way thing work. There is a huge problem with retrograde motion of Mars too.
- Copernican not accepted because priests and parents most trusted people in life - you just can't tell people they are wrong. (The same is true with former teachers.)
- 6th/7th
- P. 219; 15–16, 19–22
- Collect problems
- Universal Gravitation - a primer (Keynote presentation)
- Why do astronomy? Predicting events is power! Stonehenge (1400 BCE), Zodiac (1000 BCE), Kings hired astronomers to figure out events. During colonial times astronomy was the only science taught.
- Tycho Brahe's observatories.
- Given island of Hven by the king of Denmark and made very accurate observations of celestial bodies.
- Had a fake nose because he lost his in a duel over who was a better mathematician.
- Died at a party from a burst bladder.
- Kepler was Brahe's assistant. He wasn't much of an observer - childhood smallpox left him with weak vision but his ability as a mathematician was unrivaled. He first proposed elliptical orbits and took over some official duties Brahe had to some monarchs as court astrologer.
- Early models of the solar system
- Ptolemeic - epicycles, etc was geocentric with all circles. If we revolved around sun then star background would grow and shrink as we get closer and farther away in our orbit.
- Copernican - heliocentric with ellipses; phases of Venus sealed the deal that this is the way thing work. There is a huge problem with retrograde motion of Mars too.
- Copernican not accepted because priests and parents most trusted people in life - you just can't tell people they are wrong. (The same is true with former teachers.)
- *Continue working on circular motion lab
- A tour of the solar system
- Kepler's 1st and 2nd laws
Wednesday, January 27
- 5th/6th
- Universal Gravitation - a primer (Keynote presentation)
- Why do astronomy? Predicting events is power! Stonehenge (1400 BCE), Zodiac (1000 BCE), Kings hired astronomers to figure out events. During colonial times astronomy was the only science taught.
- Tycho Brahe's observatories.
- Given island of Hven by the king of Denmark and made very accurate observations of celestial bodies.
- Had a fake nose because he lost his in a duel over who was a better mathematician.
- Died at a party from a burst bladder.
- Kepler was Brahe's assistant. He wasn't much of an observer - childhood smallpox left him with weak vision but his ability as a mathematician was unrivaled. He first proposed elliptical orbits and took over some official duties Brahe had to some monarchs as court astrologer.
- Early models of the solar system
- Ptolemeic - epicycles, etc was geocentric with all circles. If we revolved around sun then star background would grow and shrink as we get closer and farther away in our orbit.
- Copernican - heliocentric with ellipses; phases of Venus sealed the deal that this is the way thing work. There is a huge problem with retrograde motion of Mars too.
- Copernican not accepted because priests and parents most trusted people in life - you just can't tell people they are wrong. (The same is true with former teachers.)
- Kepler's 1st and 2nd laws
- 7th
- Kepler's 3rd Law
Thursday, January 28
- 5th/6th
- P. 219; 15–16, 19–22
- Go over problems
- 7th
- P. 219; 15–16, 19–22
- Go over problems
Friday, January 29
- 5th
- P. 219; 25–28 due
- Go over problems
- 7th
- P. 219; 25–28 due
- Go over problems
Monday, February 1
- 5th/6th
- Newton's universal law of gravitation examples
- Calculate the force of graviational attraction between:
- A 40 kg boy and a 1.2 kg stapler 2.0 m apart.
- A 40 kg boy and the Earth
- The Earth and the Sun
- A spaceship between Earth and the Sun at a distance of 2.5 x 108 m from Earth
- An asteroid 1.1 x 108 m from Mars so that a line from it to Mars is perpendicular to the radius of Mars' orbit
- *Weighing the Eartha and the Cavendish balance
- 7th
- More examples:
- A 40 kg boy and the Earth
- The Earth and the Sun
- A spaceship between Earth and the Sun at a distance of 2.5 x 108m from Earth
- An asteroid 1.1 x 108 m from Mars so that a line from it to Mars is perpendicular to the radius of Mars' orbit
Tuesday, February 1 and Wednesday, February 2 – No School – Snow day
Tuesday, February 2
- 5th
- P. 220, 29 – 34 due
- Go over problems
- 6th/7th
- P. 220, 29 – 34 due
- Go over problems
- *Finish 32-34
Wednesday, February 3
- 5th/6th
- Finish going over over problems
- *A tour of the solar system
- Derive Kearth = 9.89 x 10-14 s2/m3
- r for geosynchronous satellites
- v for space shuttle if T=90 minutes
- Mass of the sun if Tpluto =7.83 x 109 s and r=5.91x1012 m
- 7th
- More Kepler's law problems
- Derive Kearth = 9.89 x 10-14 s2/m3
- r for geosynchronous satellites
- v for space shuttle if T=90 minutes
- Mass of the sun if Tpluto =7.83 x 109 s and r=5.91x1012 m
Thursday, February 4
- 5th/6th
- P. 220, 35 to 39 due
- Go over problems
- *Torque
- 7th
- P. 220, 35 to 39 due
- Go over problems
Friday, February 5
- 5th/6th (No class 6th period due to pep rally)
- Circular Motion Lab due
- Space shuttles challenger and columbia
- 7th - Mr. Flint at pep rally
- Circular Motion Lab due
- Work on problems/makeup circular motion lab/go over other homework problems
Wednesday, February 9
- 5th
- More torque examples
- 6th/7th
- Torque
- * More torque examples
Thursday, February 10
- 5th
- P. 253, 1 to 6 due
- Go over problems
- 6th/7th
- P. 253, 1 to 6 due
- Go over problems
- *Rotational inertia
Friday, February 11
- All classes
- Review Due
- Go over problems
- Rotational inertia demonstrations
Monday, February 14
- 5th/6th
- *Chapters 7 & 8 Test (6th period)
- Test will be today regardless of any delay or cancellation of school on Tuesday
- 7th
- Chapters 7 & 8 Test
- Test will be today regardless of any delay or cancellation of school on Tuesday
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