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Physics: Simple Machines

Resource Grade Level Media Type
Energy Transfer in a Trebuchet  

Energy Transfer in a Trebuchet
On NOVA, a team of carpenters, timber framers, engineers, and historians recreate a medieval throwing machine called a trebuchet. This adapted video segment explores how understanding energy transfer informs their design.

6-12 QuickTime Video
Galileo: His Experiments  

Galileo: His Experiments
This interactive activity from the NOVA Web site samples Galileo's experiments with falling objects, projectiles, inclined planes, and pendulums.

6-12 Flash Interactive
Galileo: His Place in Science  

Galileo: His Place in Science
Einstein called Galileo the "father of modern physics." This media-rich essay from the NOVA Web site looks at Galileo's quest to understand the mathematics of motion.

6-12 HTML Document
Galileo's Inclined Plane  

Galileo's Inclined Plane
How did Galileo figure out the mathematics of falling bodies? This video segment adapted from NOVA examines Galileo's work on motion.

6-12 QuickTime Video
Lever an Obelisk  

Lever an Obelisk
Investigate the mechanical advantage of the lever in this interactive activity from the NOVA Web site.

6-12 Shockwave Interactive
Levers: Raising the Moai on Easter Island  

Levers: Raising the Moai on Easter Island
In this video segment adapted from NOVA, a team of archaeologists and engineers explores different uses of the lever by recreating the engineering feats of the ancient Easter Island peoples.

3-12 QuickTime Video
Raising an Obelisk: An Engineering Puzzle  

Raising an Obelisk: An Engineering Puzzle
This video segment adapted from NOVA follows two teams as they each test a different engineering design in an effort to explain how ancient Egyptians raised a giant stone obelisk.

3-12 QuickTime Video
Steam Machine  

Steam Machine
Explore NOVA Online's interactive steam engine and discover how this machine can convert heat to mechanical energy.

3-12 Shockwave Interactive