Wednesday, October 12, 2016

Unit 3 Overview - Newton's Laws

Goals
1.  Draw Force Vectors.
2.  Calculate Weight.
3.  Solve Problems with Net Force.
4.  Know that when an object is at rest or moving with constant velocity that Fnet = 0 and all of the forces are balanced.
5.  Understand what terminal velocity is and how it is reached.
6.  Be able to explain why all objects in freefall have an acceleration of 9.8 m/s2
7.  Understand that forces are interactions between two things and that each object exerts an equal and opposite force on the other.
8.  Know Newton’s Three Laws of Motion by name.

In general, understand Newton’s 3 laws and apply them to explain motion.

 Lab Due Date: Oct. 26 or 27

 Homework due in the evening of Oct. 25, and Oct. 31

Test Date Nov. 2 and 3

Thursday, October 6, 2016

Introduction to Forces

Forces Preview:
There's a short assignment about mass, weight and net force.  It's due Monday night.

The readings linked to here should help you answer the questions.

http://www.physicsclassroom.com/Physics-Tutorial/Newton-s-Laws

Read lessons 1 and 2.  Pay particular attention to the section "Confusion of Mass and Weight" on the Types of Forces page, and the Determining the Net Force Page.

When you're done answer the new questions on the UT homework page.

Wednesday, October 5, 2016

Answers for the Review Questions and even more review questions and instructions

Vectors in 2 dimensions practice
answers are on the last page


Vector Unit Overview

Unit Goals:
1. Know that perpendicular vectors are independent
2. Add vectors graphically with parallelogram and head to tail methods.
3. Use trig and Pythagorean theorem to find resultant.
4. Break vectors into perpendicular components graphically and with trig.
5. Solve motion problems in 2D.


Covers Sections 4.1, 4,2 and 7,2  or  continue reading from the links on the physics tutorial website http://www.physicsclassroom.com/Class/vectors/