lecture02 - College Physics Chapter 1 Introduction Theories...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: College Physics Chapter 1 Introduction Theories and Experiments ¡ The goal of physics is to develop theories based on experiments ¡ A theory is a mathematical expression, about how a system works ¡ The theory makes predictions about how a system should work ¡ Experiments check the theories’ predictions ¡ Every theory is a work in progress From Astronomical scales.. http://antwrp.gsfc.nasa.gov/apod/archivepix.html ~ 10 21 m ..to planetary scales.. Why do we always see only one half of the moon? ~ 10 6 m ..to the microscopic and smaller Atomic scale image of graphite taken in the Biswas lab. ~ 10-10 m Fundamental Quantities and Their Dimension ¡ Length [L] ¡ Mass [M] ¡ Time [T] ¡ other physical quantities can be constructed from these three You will need a few more in PHY 2054 Units ¡ To communicate the result of a measurement for a quantity, a unit must be defined ¡ Defining units allows everyone to relate to the same fundamental amount Systems of Measurement ¡ Standardized systems ¡ agreed upon by some authority, usually a...
View Full Document

This note was uploaded on 12/15/2011 for the course PHY 2054 taught by Professor Avery during the Spring '08 term at University of Florida.

Page1 / 4

lecture02 - College Physics Chapter 1 Introduction Theories...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online