Thankful for Tests

On Monday (11/23), we took a test on forces and how they affect motion. Have a nice holiday!!

CLASS ACTIVITIES

1) Unit 4/5 Test

2) A Friction Prediction

HANDOUTS

none today

HOMEWORK

1) Think of ideas for semester project

A Collection of Forces

On Thursday (11/19), we finished our Research Lab presentations and prepared for our test on Monday.

CLASS ACTIVITIES

1) Remaining Research Lab presentations

2) Unit 4/5 Review

HANDOUTS

1) Unit 4/5 Review

HOMEWORK

1) Unit 4/5 Review

2) Assemble HW packet

3) Prepare for Unit 4/5 Test

Homework Solutions

These are now up to date.

Unit 4/5 Worksheet 2

Unit 4/5 Worksheet 3

Unit 4/5 Worksheet 4

Unit 4/5 Worksheet 5

Unit 4/5 Worksheet 6

Unit 4/5 Review

Playing with Friction

On Tuesday (11/17), we practiced some complicated force problems and started to design a playground slide.

CLASS ACTIVITIES

1) Example Problems

2) A Friction Prediction

HANDOUTS

1) A Friction Prediction

2) Worksheet 6

HOMEWORK

1) Worksheet 6

Tips for Friction Prediction

When attempting to determine your friction prediction, try the following steps:

1) Draw force diagram

2) Sum forces in x and y directions

3) For x-direction forces, solve for force of friction (this answer will still have a sin A)

4) For y-direction forces, solve for normal force (this answer will still have a cos A)

5) Insert these two answers into the friction equation.

6) Solve for the angle.

7) Use the angle to calculate the minimum height required for the slide.

Good Luck!

Unit 4/5 Homework Solutions

Worksheet 6 just added. I still need to scan the review sheet and will post this afternoon.

Unit 4/5 Worksheet 2

Unit 4/5 Worksheet 3

Unit 4/5 Worksheet 4

Unit 4/5 Worksheet 5

Unit 4/5 Worksheet 6

The Animals are Coming Home

On Friday (11/13), we started the long-awaited Research Lab presentations and talked more about angled forces.

CLASS ACTIVITIES

1) Example Problems

2) Research Lab Presentations

HANDOUTS

1) Research Lab Peer Evaluation

HOMEWORK

1) Finish Worksheet 5

Forces from a Different Angle

On Tuesday (11/10), we learned about angled forces and their effect on force diagrams. On Friday, we will have our Research Lab presentations.

CLASS ACTIVITIES

1) Introduction of Angled Forces

2) Practice Problems

3) Group Work for Research Lab

4) Worksheet 5

HANDOUTS

1) Worksheet 5

HOMEWORK

1) Complete Research Lab presentation

2) Worksheet 5 page 1

Animal Magnetism

On Wednesday (11/4), we discussed in detail the rubric for the Research Lab project and observed an example of one presentation option.

CLASS ACTIVITIES

1) Review Force Diagrams and Unit 4/5 Worksheet #2

2) Evaluate sample Research Lab written product

3) Lost Memories example presentation

4) Group work for Research Lab

HANDOUTS

1) Example Research Lab written product: Memories Lost

HOMEWORK

1) Complete Research Lab written product (due Tuesday, November 10)

2) Work on Research Lab presentation (to be presented Friday, November 13)

3) Prepare for Unit 4/5 Quiz #2 - Force Diagrams, Newton's 2nd Law, and Kinematics (Unit 4/5 - Worksheets #1 and #2)

Over-Reacting

On Monday (11/2), we reacted with Newton's Third Law of Motion and experimented with the tension in a string.

CLASS ACTIVITIES

1) The Last Inertia Demo

2) Newton's Third Law demonstrations

3) Lab: Can You Feel the Tension?

4) Research Lab Group Work

HANDOUTS

1) Lab: Can You Feel the Tension? worksheet

2) Unit 4/5 Worksheet 3

HOMEWORK

1) Unit 4/5 Worksheet 3

2) Get Permission Slips signed (one for Exploratorium, one for video in class)

3) Bring $30 for Exploratorium (checks payable to LGHS Science)

4) Complete Research Lab rough draft