Khan Academy
Khan Academy: Pulleys
Answer questions after watching videos demonstrating pulleys. Also included is a video on how to calculate the mechanical advantage for pulleys.
Khan Academy
Khan Academy: Lever
Answer the questions after watching a silent video demonstrating a lever. Also included are videos on mechanical advantage levers.
PBS
Pbs: Design Squad: Servo Mechanisms
A brief QuickTime video demonstrating how a servo mechanism functions in items such as cameras or remote controls.
Science Friday Initiative
Science Friday: Searching for Meaning in a Cheap Toaster
Author Thomas Thwaites discusses his quest to build a simple toaster from scratch, starting with iron ore.
Science for Kids
Science Kids: Physics Videos: Introduction to Gears
This video review over the basics of gears including ratio, rotation, mechanical advantage, and more. [10:58]
PBS
Pbs Teachers:coral Castle
Explore simple machines. See how two kids used the scientific method to find out how a block and tackle, lever, pulley and winch could be used to build Florida's Coral Castle.
PBS
Pbs Teachers: Kart Racing
Explore how gears work, and examine the gears on a race kart. Watch two kids use the scientific method to find out which gear gives them the best performance.
CPALMS
Florida State University Cpalms: Florida Students: Amplifying Forces With an Atlatl
See how ancient hunters used science and simple machines to become stronger hunters. [3:10]
Bozeman Science
Bozeman Science: Simple Machines
Mr. Andersen explains the simple principles behind simple machines. He shows how the mechanical advantage of a simple machine can increase the input force. A brief discussion of work is also included.
Next Vista for Learning
Next Vista for Learning: What Is a Rube Goldberg
See a Rube Goldberg machine that shoots a basketball in this video! Inspire your students to make their own Rube Goldberg after viewing this video. [1:27]
Mocomi & Anibrain Digital Technologies
Mocomi: What Is a Pulley?
Learn about pulleys with this interactive video lesson.