CK-12 Foundation
Ck 12 Exploration Series: Simulations: Physics: Block and Tackle
[Free Registration/Login Required] A video module where students learn about the relationship between force, work, energy, and mechanical advantage using a simple machine.
Science Buddies
Science Buddies: Give Yourself a Lift: Lightening the Load With Pulleys
Before the Industrial Age, people relied on muscle power for moving and lifting heavy objects. Here's a project that shows you how you can use your head to make heavy lifting easier on your muscles - and your back.
Technology Student
Technology Student: Gears and Pulleys
This site describes the basics of gears and pulleys, and their use in simple machines.
SEDL
Southwest Educational Development Laboratory: Simple Machines [Pdf]
This large PDF file contains seven lessons on simple machines. Includes illustrations. Requires Adobe Reader.
TeachEngineering
Teach Engineering: Machines and Tools, Part Ii
In this activity, students gain first-hand experience with the mechanical advantage of pulleys. Students are given the challenge of helping save a whale by moving it from an aquarium back to its natural habitat into the ocean. They set...
TeachEngineering
Teach Engineering: Pulley'ing Your Own Weight
Using common materials (spools, string, soap), students learn how a pulley can be used to easily change the direction of a force, making the moving of large objects easier. They see the difference between fixed and movable pulleys, and...
TeachEngineering
Teach Engineering: The Power of Mechanical Advantage
Students learn about the mechanical advantage offered by pulleys in an interactive and game-like manner. By virtue of the activity's mechatronic presentation, they learn to study a mechanical system not as a static image, but rather as a...
TeachEngineering
Teach Engineering: Simple Machines From Pyramids to Skyscrapers
Simple machines are devices with few or no moving parts that make work easier, and which people have used to provide mechanical advantage for thousands of years. Students learn about the wedge, wheel and axle, lever, inclined plane,...
TeachEngineering
Teach Engineering: Levers That Lift
This lesson introduces students to three of the six simple machines used by many engineers: the lever, the pulley, and the wheel-and-axle. In general, engineers use the lever to magnify the force applied to an object, the pulley to lift...
TeachEngineering
Teach Engineering: A Simple Solution for the Circus
In this activity, students are challenged to design a contraption using simple machines to move a circus elephant into a rail car. After students consider their audience and constraints, they work in groups to brainstorm ideas and select...
TeachEngineering
Teach Engineering: Simple Machines
Through a five-lesson series with five hands-on activities, students are introduced to six simple machines - inclined plane, wedge, screw, lever, pulley, wheel-and-axle - as well as compound machines, which are combinations of two or...
Concord Consortium
Concord Consortium: Molecular Workbench Showcase: Physics, Mechanics
A collection of simulations representing concepts discussed in a mechanics unit of physics.
Science Buddies
Science Buddies: There's a Machine in My Toy Box!
Simple machines are everywhere, even many of your toys are simple machines. Come visit this science fair project and explore the six types of simple machines. Find out how many are hiding under the hinged lid (yes, another simple...
Utah Education Network
Uen: Lifting the Load
Discover how much force is needed to lift objects without and with a pulley.
Soft Schools
Soft Schools: Simple Machines
Identify the six simple machines by dragging the correct term, and dropping it onto the associated simple machine.
TryEngineering
Try Engineering: Simple Machines
The purpose of this lesson is to learn about the different types of simple machines and their uses. PDF (requires Adobe Reader) and RTF (requires Word or Notebook).
Creative Science Centre
Creative Science Centre: Home Made Pulleys
Instructions for making pulleys at home.
Beacon Learning Center
Beacon Learning Center: Simple Machines Made Simple
The six types of simple machines are explained clearly through pictures, text and videos.
Beacon Learning Center
Beacon Learning Center: How Can We Move Our Principal?
In this problem solving exercise, students must decide which simple machine would work best in different situations, in order to help the principal manoeuvre himself after he has hurt his leg and can't walk. The site has a good tutorial...
Other
Pulley Basics
Here are some animated drawings of a fixed pulley and a movable pulley. Then, of course, there is the combined pulley which makes life even more easier.
Other
Hognosesam: Pulleys and Gears
This site gives a small amount of space to pulleys, and then provides a wealth of information about gears.
The Franklin Institute
Franklin Institute Online: Simple Machines
Information on all six simple machines, nicely presented with extra information available for all. Other sources available. Do "Try This Demonstration."
Other
University of Arkansas: Simple Machines
A thorough discussion of all the simple machines, beginning with some thoughts on mechanical advantage and conservation of energy. Very complete. Move down to the section that interests you.
Scholastic
Scholastic: Study Jams! Science: Force and Motion: Simple Machines
A slideshow and a short quiz on simple machines and how they reduce the amount of work or effort needed to complete a task.