Newton’s Cradle

Newton’s Cradle

Five balls of equal masses are suspended by strings and aligned in a row. The balls can be pulled back and made to collide to show the conservation of linear momentum.

PIRA Code(s): 
1N30.10
Set up time: 
1 minute
Physics and Science Concepts: 
Conservation of linear momentum
Operation: 
Pull back a number of balls and let them collide with the other balls, allowing the same number of balls to be released on the other side.
Safety: 
Align the balls for the best results. Do not allow the strings to tangle.