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How can you visualize a joule of energy...

How can you visualize a joule of energy ?

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A body of mass 1 kg dropped from a height of 10cm possesses a kinetic energy of 1J.
`[ as upsilon^2 =2gh = 2xx10xx0.1 = 2, KE = (1)/(2) m upsilon^2 = (1)/(2) (1) (2) = 1J]`
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  9. (a) Compare the kinetic energies of two identical bodies, one moving n...

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  11. (a) How is the energy of an object measured? (b) What does work - en...

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  12. When is the work done by gravity negative ?

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  13. What happens when a body performs work?

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