Desk swinging balls
Newton's cradle is a device that demonstrates conservation of momentum and energy using a . But in a real Newton's cradle the fourth ball swings out as far as the fifth ball. The most common application is that of a desktop executive toy.
Plastic; Imported; The classic desk accessory is art-in-motion,; Newton's Principle that "action and Lift one of the 5 steel balls at either end and let it swing back.
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How Does Newton's Cradle Work?
Description:The device consists of a row of five metal balls — positioned to just barely touch one another — suspended from a frame by thin wires. When a ball on one end of the cradle is pulled away from the others and then released, it strikes the next ball in the cradle, which remains motionless. But the ball on the opposite end of the row is thrown into the air, then swings back to strike the other balls, starting the chain reaction again in reverse. This principle states that when two objects collide, the total momentum of the objects before the collision is equal to the total momentum of the objects after the collision. Thus, if two balls are lifted into the air on one end of the device and released, then two balls on the opposite end will swing in response. Newton's Cradle demonstrates this last part of the law quite well, as it converts the potential energy of one ball into kinetic energy that is transferred down the line of balls and ultimately results in the upward swinging of the last ball. In other words, when the first ball of Newton's Cradle collides with the second, the first ball stops, but its momentum isn't lost, just transferred to the second ball, then the third, then the fourth, until it reaches the very last ball.
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