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):

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*=

*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*= Δ

*E*

_{T}*W*= work

*F*= force

*d*= displacement or distance

Δ = change

*E*= total energy

_{T}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

*v̅*= 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:

*PE*=

*mg*Δ

*h*

*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:** 1^{st} quarter ends 9 November 2023.