Scholastic
Scholastic: Dirtmeister's Science Reporters: The Lever
This site provides a description of the lever and its many uses.
Soft Schools
Soft Schools: Simple Machines
Identify the six simple machines by dragging the correct term, and dropping it onto the associated simple machine.
Ohio University
Haptic Augmented Simple Machines: The Lever
An explanation of the three types of levers, with examples of each. The formula for the law of equilibrium is also demonstrated.
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).
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...
PBS
Pbs: Nova: Lever an Obelisk
Help lift this Obelisk monument by designing a lever to do the job as efficiently as possible.
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.
University of Houston
University of Houston: Science Lessons: Simple Machines Learning Site
Provides definitions of all 6 simple machines with examples and student drawing of them. Interactive "simple machines quiz" at the end.
Sophia Learning
Sophia: Simple Machines: Levers: Lesson 3
This lesson will introduce the three types of levers and show how to calculate the mechanical advantage of each. It is 3 of 3 in the series titled "Simple Machines: Levers."
TeachEngineering
Teach Engineering: Wheeling It In!
In an open-ended design activity, students use everyday materials (milk cartons, water bottles, pencils, straws, candy) to build a small-scale transportation device. They incorporate the use of a wheel and axle, and lever into their...
TeachEngineering
Teach Engineering: Engineering: Simple Machines
Simple machines are devices with few or no moving parts that make work easier. Students are introduced to the six types of simple machines - the wedge, wheel and axle, lever, inclined plane, screw, and pulley - in the context of the...
TeachEngineering
Teach Engineering: Let's Move It!
Students explore methods employing simple machines likely used in ancient pyramid building, as well as common modern-day material transportation. They learn about the wheel and axle as a means to transport materials from rock quarry to...
TeachEngineering
Teach Engineering: Simple Machines and Modern Day Engineering Analogies
Students apply the mechanical advantages and problem-solving capabilities of six types of simple machines (wedge, wheel and axle, lever, inclined plane, screw, pulley) as they discuss modern structures in the spirit of the engineers and...
Other
D&t Online: Levers
This site illustrates different classes of levers that are used in simple machines.
Read Works
Read Works: Machines Can Move
[Free Registration/Login Required] An informational text about simple machines people use every day. A question sheet is available to help students build skills in reading comprehension.
CK-12 Foundation
Ck 12: Physical Science: Lever
[Free Registration/Login may be required to access all resource tools.] Definition of a lever and the three different classes, and how each one changes force.
Sophia Learning
Sophia: Levers & Work
A video tutorial showing the relationship between levers and work as it relates to mathematics. [4:33]
Utah Education Network
Uen: Force, Energy, and Motion: Complex Machines for Simple Tasks!
Designed for Grade Eight, this collection of lessons provides information, examples and quizzes related to simple machines. Elementary students studying this topic will find this site informative as well.
Soft Schools
Soft Schools: Physics Quizzes: Simple Machines
Assess your understanding of the six simple machines with this interactive multiple choice quiz. Immediate feedback is available.
Other
Libros Vivos: Fuerzas en Equilibrio
This site has a simple introduction to equilibrium of force and moment of a force.
NASA
Nasa: Weight and Balance Forces Acting on an Airplane
The effects of forces exerted on an airplane wing are discussed both conceptually and mathematically. Illustrations and sample problems and solutions are provided.