813 Friction Apparatus
Includes a friction block and a friction board (both made of high-quality, smoothly finished wood), three 50-g weights (made of steel chrome plated) and a 100-g spring scale. The friction block has a hook for a spring scale and 2 compartments for additional weights. Students can vary the weight or area of contact to see their impact on the friction force. Includes instruction manual.
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Earth & Space Science
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