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Physics in Context - 2nd Edition

Chapter 3: Rate

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3.1 Rate in Mechanical Systems

Velocity and Acceleration Graphs
This lesson from the Physics Hypertextbook takes the reader through the progression of interpreting graphs of distance, speed, and acceleration. See also links to practice problems and other resources.

Speed and Velocity in One Dimension
This series of pages from the Physics Classroom explains the important role speed and velocity play in analyzing and understanding one-dimensional mechanical systems.

Projectile Motion
This series of pages from the Physics Classroom explains the analysis of speed and direction using vectors in two dimensional mechanical systems.

Interesting Properties of Projectile Motion
This site includes two applets that 1) examine the effect of different projectile angles fired at the same speed and 2) examine the vector components of a projectile.

Circular Motion
This series of pages from the Physics Classroom explains the analysis of speed and direction using vectors in two dimensional rotating mechanical systems.

Basic Rotational Variables
This page summarizes the relationships between the variables for angles, speeds, and accelerations used in rotating mechanical systems.

Centripetal Force
Physics Multimedia Studio presentation on Centripetal Force.

The Physics of SUV Rollover Accidents
This presentation will describe the physics (and math) of what occurs, for NON-physicist-types!

Circulation Motion and Centripetal Force
An interactive java applet.

3.2 Flow in Fluid Systems

Mass Flow Rate
This NASA Glen Research Center page discusses the fundamental concepts related to conservation of energy and mass flow. You can link to additional information on aerodynamics and propulsion.

Movement of Air in Industrial Plants
This article at the Heating, Piping, and Air Conditioning (HPAC) Engineering site discusses how an analysis of air flow, as impacted by mass and density, was sued to solve a real-world manufacturing problem.

Continuity and Conservation of Matter
This page from a fluid mechanics course uses diagrams, mathematics, and example problems to aid in the understanding of mass flow rate and volume flow rate.

Fluids in Motion
This page defines flow rate and then derives the continuity equation and Bernouilli's equation.

3.3 Current in Electrical Systems

Electric Current
This lesson from the Physics Hypertextbook presents the concept of electric current by showing how the movement of electric charge through a conductor, and includes some interesting historical perspectives. Some of the material may be more advanced than necessary for this course.

AC Waveforms
This page links to several lessons in a unit on "AC Waveforms" that introduce the sine-waves used to define AC electricity. This page links to several lessons in a unit on "AC Waveforms" that introduce the sine-waves used to define AC electricity. Click the links for lessons in "Unit 1 AC Waveforms."

How to Read Electronic Schematics
This site includes a series of pages explaining schematic symbols used to describe electronic circuits.

Electric Current
This series of lessons from the Physics Classroom discusses how electric potential causes electric charges to move through a circuit. After completing the practice problems in each lesson, click "Next Section" to advance.

Experiments in Electricity
This page describes an activity to construct and test a light bulb, including a video demonstration.

3.4 Heat in Thermal Systems

About Temperature
This page delivers an intermediate level discussion of temperature, thermometers, the kinetic theory of gas, and thermal radiation.

Heat and Temperature
This page talks about heat flow and how to control it.

Heat Transfer
This is the Heat Transfer section of the HyperPhysics site. It contains discussions of heat transfer equations. Of particular interest are the examples of heat transfer that can be viewed by clicking on the Examples link.

Thermal Insulation
This page discusses the role of thermal insulation, how it works, and how its effectiveness is measured.

Thermal Resource Center
A page with dozens of links to convertors, calculators, and resources covering and teaching about a wide array of thermophysical properties