PBS
The Math of Bicycles: Wheel Figure This Out (Grades 4 7)
Several good activities here. Look particularly at Wheel Figure It Out (which is the opening page) and Gearing Up. There are answers to the very good questions at the bottom of each.
Science Buddies
Science Buddies: Balancing the Load: The See Saw as a Simple Machine
Have you ever tried to pull out a nail out of wood with your bare hands? Or have you tried to shove a staple through a stack of papers without a stapler? A hammer's claw, a stapler, a pair of pliers and a shovel are each examples of...
Science Buddies
Science Buddies: Gears Go Round!
Music boxes, bicycles, and clocks all have one thing in common: GEARS. You might say that gears make the world turn, since they are in so many mechanical instruments. How do they work and how do you know which gears to use? Find out in...
Science Buddies
Science Buddies: Which Simple Machines Do I Use the Most?
When you think of a machine, you probably think of computers or robots. Try this experiment to see how simple machines are used everyday around your house.
Science Buddies
Science Buddies: Bomb's Away! A Ping Pong Catapult
With this project you'll send ping pong balls flying through the air with a rubber-band powered catapult. This catapult makes it easy to reproduce the launch angle, and to measure the amount of force applied to the projectile. Armed with...
Science Education Resource Center at Carleton College
Serc: Investigating the Inclined Plane Through Inquiry
For this activity, students will use different materials to find the most effective way to use an inclined plane (in other words, moving an object with as little force as possible). This is a guided inquiry. Although the students will be...
Technology Student
Technology Student: Mechanisms
This site describes mechanisms and simple machines, and the basic components used to build them.
SEDL
Southwest Educational Development Laboratory: Simple Machines [Pdf]
This large PDF file contains seven lessons on simple machines. Includes illustrations. Requires Adobe Reader.
Other
Solpass: Simple Machines [Pdf]
Worksheet activities for students to practice knowledge about simple machines.
OpenStax
Open Stax: Simple Machines
From a chapter on Statics and Torque in a Physics textbook. This section of the chapter discusses the different types of simple machines and how to calculate their mechanical advantage. Includes questions, problems and exercises.
TeachEngineering
Teach Engineering: Splash, Pop, Fizz: Rube Goldberg Machines
Refreshed with an understanding of the six simple machines; screw, wedge, pully, incline plane, wheel and axle, and lever, student groups receive materials and an allotted amount of time to act as mechanical engineers to design and...
TeachEngineering
Teach Engineering: The Magician's Catapult
In this activity, students reinforce their understanding of compound machines by building a catapult. This compound machine consists of a lever and a wheel-and-axel. Catapults have been designed by engineers for a variety of purposes -...
TeachEngineering
Teach Engineering: Heave Ho!
Students will discover the scientific basis for the use of inclined planes. They will explore, using a spring scale, a bag of rocks and an inclined plane, how dragging objects up a slope is easier than lifting them straight up into the...
TeachEngineering
Teach Engineering: Wide World of Gears
In an interactive and game-like manner, students learn about the mechanical advantage that is offered by gears. By virtue of the activity's mechatronics presentation, students learn to study a mechanical system as a dynamic system under...
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: Putting Robots to Work With Force & Friction
Students learn about the concept of pushing, as well as the relationship between force and mass. Students practice measurement skills using pan scales and rulers to make predictions about mass and distance. A LEGO MINDSTORMS NXT robot is...
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: Just Plane Simple
This lesson introduces young scholars to three of the six simple machines used by many engineers. These machines include the inclined plane, the wedge and the screw. In general, engineers use the inclined plane to lift heavy loads, the...
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: Modern Day Pyramids
Students investigate the ways in which ancient technologies - six types of simple machines and combinations - are used to construct modern buildings. As they work together to solve a design problem (designing and building a modern...
TeachEngineering
Teach Engineering: The Claw
Students learn about gear ratios and power by operating toy mechanical cranes of differing gear ratios. They attempt to pick up objects with various masses to witness how much power must be applied to the system to oppose the force of...
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...
Texas Education Agency
Texas Gateway: Ap Physics: Statics and Torque: Problems and Exercises
This is a list of 40 problems/exercises to solve covering the content of Chapter 9: Statics and Torque from the AP Physics online text.