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## Chapter 1

by: Jacob Edwards

53

4

1

# Chapter 1 80218 - PHYS 1220 - 001

Jacob Edwards
Clemson
GPA 3.2

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These notes go over chapter 1, Chapter 2 is coming soon.
COURSE
Physics with Calculus I
PROF.
Lih-sin The
TYPE
Class Notes
PAGES
1
WORDS
KARMA
Free

## Popular in Physics 2

This 1 page Class Notes was uploaded by Jacob Edwards on Thursday January 28, 2016. The Class Notes belongs to 80218 - PHYS 1220 - 001 at Clemson University taught by Lih-sin The in Winter 2016. Since its upload, it has received 53 views. For similar materials see Physics with Calculus I in Physics 2 at Clemson University.

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Date Created: 01/28/16
Chapter 1 PHYS 1220 SI Units  SI units are used for equations in the course o The SI unit for time is the second (s) o The SI unit for length is the meter (m) o The SI unit for mass is the kilogram (kg)  Numbers can be simplified using scientific notation  Units can be converted using a conversion factor Dimensional Analysis Density ρ=(m/v)  Dimensional analysis when the dimensions of a quantity instead of the value are used to solve a problem; this is often used to check a problem  Dimensions can be treated as algebraic symbols for example: o V=l*w*h each is a unit of length so volume is equal to L 3  The quantities can only be added or subtracted if they have the same dimensions  Each side of the equation must have the same dimensions  Trigonometric functions only apply to dimensionless quantities  Logarithms and exponential functions only apply to dimensionless quantities Significant Figures  When multiplying or dividing the answer will have the same amount of significant figures as the number in the equation with the least amount of significant figures (12.5)*(2.0)=25  When adding or subtracting the answer has the same amount of decimal places as the number with the least amount of decimal places in the problem  Numbers such as e and π don’t place restrictions on results  Scientific notation can be used to help avoid confusion with significant figures  Keep extra significant figures when solving the equation and only bring to the proper amount after the equation has been solved  When the answer begins with a 1 it is okay to keep an extra significant figure

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