Block and Tackle - Demonstration Model

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Product Number: SB42808

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$121.50

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Grades K-8. Each Demonstration Model measures approximately 2-1/2 times the size of the student version and is great for classroom demonstration. One pulley can be used to change the direction of the force applied by a cord. A small force on the cord can be use to lift a large weight. Experimenting with the device shows why lifting the block by a short distance requires that the cord be pulled a long distance. Includes a detailed activity guide which details the history of the model, practical applications, and classroom experiments. 31 in. x 9 in. x 5 in.

Item Weight: 14
Acid Free: false
Assembly Required: false
Classroom Subject: Science
Dinnerware Safe: false
Grade: Kindergarten - 8
Lamination: false
Made in the USA: false
Nontoxic: false
PFOA Free: false
School Type: Elementary School, Middle School
UL Listed: false
Subject Areas: Physical Science, Simple Machines
Manufacturer Part Number: 712
Age: 5 yrs. - 13 yrs.
BPA Free: false
CSA Approved: false
Dishwasher Safe: false
Hertz: false
Machine Washable: false
Mobile: false
NSF certified: false
Phthalate Free: false
Timer(Controller): false
Warranty: false
Prop 65:
 

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