1. PHYSICS 103 LECTURE 1: 8/26/2003

2. PHYSICS 103: Lecture 1 Review of syllabus Overview of course material Basic math review Units and unit conversions Agenda for Today:

3. Advice Attend the lectures and ask questions Read the book before coming to class Study the material after each class Complete sample exercises, questions, and problems in chapters. Do the assigned homework Take the self-tests in class I give before each exam Don’t cram Work in groups Come to office hours or get a tutor if you are having trouble How to do well in this class:

4. Math Expectations Algebra Solving for an unknown The quadratic formula Basic Geometry and trigonometry Triangles Trigonometric functions

5. Solving for an Unknown Solve for x:

6. The Quadratic Equation a, b, and c are constants (numbers) Solution:

7. Triangles 90° a b c Sum of all angles in a triangle is 180° Pythagorean theorem For any right triangle:

8. Trigonometric Functions  90° a b c

9. Units and Unit Conversions SI Units Length will be measured in meters (m) Mass will be measured in kilograms (kg) Time will be measured in seconds (s)

10. Useful Conversion Factors 1 inch = 2.54 cm 1 m = 3.28 ft 1 mile = 5280 ft 1 mile = 1.61 km

11. Practice Unit Conversions: How many seconds is an average lifetime? How many days? How many seconds are you asleep? How many days? If you go 60 miles hour, how many feet per second? How many meters per second?

12. HW Assignment: Review Syllabus Read Chapter 1