Concepts of Physics
Chapter 5
Other Chapters
Color Key
Black: In Class
Green: Due/Test
Red: Homework
Blue: Related links
Updated 11.13.2008
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Wednesday, November 5
Thursday, November 6 and Friday, November 7 – No class – Parent/Teacher Conferences
Monday, November 10
- Defining Newton's Second Law (F=ma)
- F is the unbalanced amount of force (N)
- m is the mass of the entire system (m)
- a is the acceleration (m/s2)
- Equilibrium - objects with constant speed are in equilibrium
- Concept Development 5-2
- Relate F=ma to w=mg
Tuesday, November 11
Wednesday, November 12
Thursday, November 13
Friday, November 14
Monday, November 17
- Constant Mass and Changing Force lab due
- Net force with friction
- How much force does it take to move a 4.0 kg block at constant speed when the coefficient of friction is 0.55?
- How much force does it take to accelerate a block with a mass of 2.0 kg at 3.0 m/s2 with no friction?
- How much force does it take to accelerate the same block if the coefficient of friction is 0.62?
- Forces on ramps (concept development 5-3)
- Next time question 5-2
Tuesday, November 18
- Answer Next time question 5–2
- Free fall: why the mass of the object doesn't matter.
- Thread & spool demo like on p. 61 of text
- Friction lab discussion:
- Does mass affect coefficient of friction?
- Does speed affect coefficient of friction?
- Do wider tires make a car have more friction?
- Pressure
Wednesday, November 19
- Chapter 5 problems due
- Go over problems in class; answer last minute questions
- DVD Demonstrations: Disc 3 # 1-6; Disc 4 # 21-21; Disc 14 # 1-6
- Work on Friction Lab; Friction Lab Q&A
Thursday, November 20
Friday, November 21
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