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1F20.10 - Block and String

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​1F20.10 - Block and String

Preview
SelectSelected
Title1F20.10 - Block and String
Objective

Demonstrate inertia of a large block with a surprising outcome.

StatusAvailable
Assembly Instructions

A heavy block is hung by a relatively light piece of string or thread and a heavier piece of string is fastened to the bottom.

Setup Time15
Operation Time10
Preview Time5
Operation Instructions

If the bottom string is given a quick snap it will break instead of the thin top string. To provide a "quicker snap", the bottom string is attached to a piece of wood that is easily held in your hand.

ExportableNo
Demo on DimeNo
PIRA 200Yes
Export Instructions (if different)
HazardsNone
Analysis/Information
Category1 Mechanics
Subcategory1F - Newton's First Law
KeywordsNewton's Laws, Newton's 1st Law, Newton's first law
Construction Information
 
  
  
mass 8-kg inertia
1
safety rope
1
wooden loop holder
1
bench clamp
2
bench rod
2
rod clamp hook
1
rod clamp
2
rod - short
1
kite string cut to 6-ft loops (one 3 fold loop for top, one 4 fold loop for bottom)
2