Simple Machines: Inclined Planes and Levers (Third Edition)

Duration: 17

Year Published: 1982

Creator: Encyclopaedia Britannica Educ Corp

Format: 16mm

Color: Color

Description: Demonstrates the simple work formula--work = force x distance--and explains the principles that apply to such simple machines as planes, levers, and pulleys. Presents teenagers conducting experiments with first-class and second-class levers and learning to use the simple machines to reduce the force needed to complete a task.

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