What law does Newton's cradle demonstrate?
conservation of momentum
conservation of momentum and energy
conservation of energy
conservation of mass and energy
Newton’s cradle is a device that demonstrates conservation of momentum and energy using a series of swinging spheres. When one sphere at the end is lifted and released, it strikes the stationary spheres, transmitting a force through the stationary spheres that pushes the last sphere upward. The last sphere swings back and strikes the still nearly stationary spheres, repeating the effect in the opposite direction.
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Answers by country
conservation of momentum
conservation of momentum and energy
conservation of energy
conservation of mass and energy
answers
Australia
25
Germany
35
the United States
50
the United Kingdom
56
the Netherlands
15
Republic of Ireland
17
India
118
the Philippines
10
Poland
1860
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13
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18
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10