Week 8:  25 October to 29 October 2021

25 October 2019:

Book on a table.

In Class:  Force of Gravity, Normal Force, Weight, and Friction.

Expectations:  Students will solve simple friction problems.

Due:  Pages 1:161-163 (202 – 211).

Homework:  Pages 1:163-164 (212 – 217).

26 October 2019:

In Class:  Relationship between Weight and Friction:

  • Ff  =  μ FN
  • Ff  = force of friction
    μ = coefficient of friction
    FN = normal force
  • Expectations:  Students will solve friction problems.

    Due:  Pages 1:163-164 (212 – 217).

    Homework:  Pages 1:164-165 (218 – 227).

    free body diagram

    27 October 2019:

    In Class:  Forces on a Ramp (free body diagrams).

    Expectations:  Students will resolve and solve friction and free body diagram problems involving ramps.

    Due:  Pages 1:164-165 (218 – 227).

    Homework:  Pages 1:165-167 (228 – 236).

    28 October 2019:

    No Class:  Physics does not meet on Thursday.

    29 October 2019:

    In Class:  Momentum:

  • p = m v
  • p = momentum
    m = mass
    v = velocity or speed
  • Impulse:

  • J = Fnet t = Δp
  • J = impulse
    Fnet = net force
    t = time
    Δ = change
    p = momentum
  • Expectations:  Students will solve momentum and impulse problems.

    Lab 3:
    Data collection and analysis of Speeding Cars Lab.

    Expectations:  Students will be able to use a spreadsheet to analyze distance and time data and to create graphs to find velocity.

    Due:  Pages 1:165-167 (228 – 236).

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

    Note:  1st quarter ends 12 November 2021.