PIC
Web Resource
Quick Reference

Chapter 2: Work

Choose a system and follow the links.

Mechanical

Fluid

Electrical

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2.1 Work in Mechanical Systems

How Does a Block and Tackle Work?

This page describes how a block and tackle allows you to multiply force.

Radian Measure of Angles

This page provides a tutorial in calculating radians.

Introduction to Torque, Work, and Power

This page describes the relationships among torque, work, and power and their application in the gearing of motorcycles.

When you go to this site, check out the article "Introduction to Racquet Science," particularly the section on torque, to find out about the physics involved with tennis racquet performance and tennis injuries.

What Is Torque?

This page describes the torque involved in tightening bolts and how torque wrenches measure torque.

2.2 Work in Fluid Systems

How a Tire Pressure Gauge Works

This site describes how a tire pressure gauge works.

How Hydraulic Machines Work

This site explains the principles behind hydraulic machines from log splitters to heavy equipment.

The Human Cardiovascular System

The cardiovascular system is discussed as a closed fluid system. This site is from a college physics course and may be more advanced than some of the other links.