# Ch 1: Introduction to Physics

Watch online video lessons to learn about SI base units, conversion factors, quadratic relationships and more. Each lesson is accompanied by a short multiple-choice quiz you can use to check your understanding of these physics topics.

## Introduction to Physics - Chapter Summary and Learning Objectives

Watch the introduction to physics video lessons to find out what's covered by this branch of science. Instructors can also equip you with the mathematical tools you'll need to study all things concerning matter and energy. This chapter is designed to teach you to the following:

• Units of measurement and conversion factors
• Algebra, trigonometry and calculus basics
• Definition of significant figures
• Graphical representations of experiment variables

Video Objective
What is Physics? Defines physics and explains its role and scope.
Math Review for Physics Provides a math review of algebra, exponents, trigonometric functions, right triangles, scientific notation and significant figures.
Elements of the SI: Base and Derived Units Lists and describes the SI base and derived units, including meter, kilogram, Kelvin, ohm, hertz and mole.
The Metric System: Units and Conversion Names the metric units for length, mass, time, volume and density and shows how to report measurements with proper precision.
Unit Conversion and Dimensional Analysis Provides conversion factors for converting among various units and common prefixes, such as milli, centi and kilo.
Significant Figures and Scientific Notation Shows how to use the correct number of significant figures when making calculations and report answers with the correct scientific notation.
Linear and Direct Relationships Describes the binary relationships where changes to one variable result in equal or constant changes to the other.
Quadratic and Inverse Relationships Explains the parabolas and hyperbolas used to illustrate nonlinear relationships between two variables.

Final Exam
Chapter Exam

### Earning College Credit

Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.