Simple and Compound Machines
This item is included in the following series/curriculum: Physical Science Collection
- Grade Level: Primary (1-3)-Junior High (7-9)
- Subjects: Physical Science
- Produced By: SchoolMedia, Inc.
- Year: 1998
- Country: United States
- Language: English
- Running Time: 20m
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When "Hardware Hal" holds a "Simple and Compound Machines Sale" he demonstrates to his assistants the six simple machines: the lever, wedge, inclined plane, pulley, wheel & axle, and screw. Shows how these machines make work easier by changing force, direction, or distance. Machines in action and computer graphics illustrate the principles of work, effort, force, distance, power, friction, and much more. DVD features include on-screen teacher's guide and vocabulary plus chapter selections.