Week 9:  31 October to 4 November 2021

31 October 2021:

In Class:  The Pendulum:

Calculating the period of a pendulum (Not on Reference Tables):

  • T = 2π√l/g
  • T= period
    π= 3.141 592 65
    l= length of pendulum
    g= acceleration due to gravity
  • Expectations:  Students are expected to be able to solve problems using the pendulum equation.

    Relationship between frequency and period (See Waves Table):

  • T= 
  • 1
      f  
  • T= period
    f= frequency
  • Expectations:  Students are expected to be able to convert period and frequency.

    Lab 4:
    Data collection and analysis of Free Fall Reaction Time Lab.

    Expectations:  Students will be able to calculate time from distance in free fall.

    Due:  Pages 1:167-169 (237 – 252).

    Homework:  Pages 1:169-170 (253 – 259) and finish the Free Fall Reaction Time Lab report.

    1 November 2021:

    In Class:  Work:

  • W = Fd = ΔET
  • W= work
    F= force
    d= displacement or distance
    Δ= change
    ET= total energy
  • Expectations:  Students are expected to do work (or, at least, to solve work problems).

    Due:  Pages 1:169-170 (253 – 259) and finish the Free Fall Reaction Time Lab report.

    Homework:  Pages 2:49-50 (1 – 10).

    2 November 2021:

    In Class:  Power:

  • P= 
  •  W
      t  
  •  = 
  •  F d
      t  
  •  = F v̅
  • P= power
    W= work
    t= time
    F= force
    d= displacement or distance
    = average velocity or speed
  • Expectations:  Students will be able to solve power problems.

    Due:  Pages 2:49-50 (1 – 10).

    Homework:  Pages 2:50-51 (11 – 25).

    3 November 2021:

    No Class:  Physics does not meet on Thursday.

    4 November 2021:

    In Class:  Gravitational Potential Energy:

  • ΔPE = mgΔh
  • Δ= change
    PE= potential energy
    m= mass
    g= acceleration due to gravity
    h= height
  • Expectations:  Students will be able to solve gravitational potential energy problems.

    Due:  Pages 2:50-51 (11 – 25).

    Homework:  Pages 2:51-53 (26 – 31).

    Note:  1st quarter ends 10 November 2022.