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Newton's Cradle

Newfanbus

Let’s Talk STEAM

The Science

Newton’s Cradle is a toy named after the very famous scientist, Sir Isaac Newton. It demonstrates a scientific idea called momentum. Momentum is the force of an object as it moves.  When you swing one of the marbles on the end, it collides with the marble next to it and the force of that collision travels through each of the other marbles until it reaches the last one, which swings upward. When that marble swings back down, the force travels through the marbles again. 

This is a demonstration of a scientific principle called the conservation of momentum. This principle states that when two objects collide their momentum before the collision equals their momentum after the collision. In Newton’s Cradle the force of the collision travels through each of the balls until it reaches the last ball which swings up.

Momentum is also directly related to the mass of an object: 

Momentum = mass * velocity

The Engineering

This DIY toy is supported by a rigid frame. A frame is a structure that holds something tightly in place. This toy has a lot of movement in the marbles and will not work if the frame around the marbles also moves.

Newton’s Cradle also demonstrates a concept called tolerances. In engineering, products must be built very precisely. If they aren’t, the product will fall apart when in use. In Newton’s Cradle the marbles must be hung very carefully side by side and in a line or the toy won’t work.

 

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You   can watch more about it here http://www.newfanbus.com/index.php/Video/cont/type/80/id/187

 

Article is from https://babbledabbledo.com/how-to-make-a-simple-newtons-cradle/