Kinetic Energy© Copyright NewPath Learning. All Rights Reserved. 94-4871Visit www.newpathlearning.com for Online Learning Resources.wind windCalculating Kinetic EnergyThe equation for calculating kinetic energy is one-half times mass times velocity squared. .3 kg10 m/s.6 kg10 m/s.3 kg20 m/skinetic energy = 1/2 x mass x velocity21/2 x .3 kg x (10 m/s)2 = 15 J1/2 x .6 kg x (10 m/s)2 = 30 J1/2 x .3 kg x (20 m/s)2 = 60 JVelocity has more of an impact on an object’s kinetic energy than mass. If the ball’s mass is doubled to .6 kg, then the kinetic energy is doubled. However, if you double the velocity of the ball to 20 m/s, then the ball’s kinetic energy quadruples.A ball that weighs .3 kg and is moving at 10 m/s has the kinetic energy of 15 joules. Kinetic Energy Kinetic energy is the energy of motion. Objects in motion have the ability to do work. Wind in motion can move rocks across the surface of the Earth. A hammer in motion can drive a nail into a board. The amount of kinetic energy an object has depends on its mass and velocity. An increase in either of these will increase the object’s kinetic energy. windThe equation for calculating kinetic energy is oneeeeeeeeee--------hhhhhhhhhhhhaaaaaaaaaaallllllllllffffffffffff ttttttttttiiiiiiiimmeeeeeeesssssssss mmmmmmmmmmmmmmmmmmmasssssssssssssssssssssssss timesssssssssssssss vvvvvvvvvvvvvvvveeeeeeeeeeeelllllllllllooooooccccccccccccccciiiiiiiiiiiiiittttttttttttttttyyyyyyyyyyyyyy squared. .3 kkkkkkkkkggggggggggggg1000 m/s.....66666666666666 kkkkkkkkkkkkkkgggggggg11111111111111000000000000000 mm/s.3 kg20 m/skinetic energy = 1/2 x mass x vvvvvvvvvvvvvveeeeeeeeeeeeeeelllllllllllloooooooooooooooocitttttttttttttyyyyyyyyyyyyyyyy2222222222221/2 x .3 kg x (10 m/s)2 = 15 JJJJJJJJJJJ1/2 x .6 kg x (10 m/s)2 = 30 J11111111111111////////////////222222222222222 xx .3 kg x (2222220000000000000000 mmmmmmmmmmmmmm///////////ssssssssssssss))))))))))))2 = 666666666600000000000000000 JJJJJJJJJJJJVelocity has more of an impact on an object’s kinetic energy than mass. If the ball’s mass is doubled to .6 kg, then the kinetic energy is doubled. HHHHHHHHHHHHHHHHHowwwwwwwwwwwwwweeeeeeevvvvvvvvvvvvvvvvveeeeeeeeeeeeeerrrrrrrrrrrrrrrr,,,,,, iiiiiiiiiifffffffff yyyyyyyyyyyyyyyooooooooooouuuuuuuuuuu dddddddddddddddddooooooooooooouuuuble thhhhhhhhhhhheeeeeeeeeeeeee vvvvvvvvvvvvvvveeeeeeeeeeeellooooooocccccccccccccciiiiiiiiiiiitttttttttttyyyyyyyyyyyyyy of thhhhhhhhhheeeeeeeee bbbbbbbbbbbbbbbbaaaaaaaaaaaaaaaallll to 222222222220 mmmmmmmmmmmmmmmmmmm//////////////////////sssssss,,,,,,, ttttttttthhhhhhhhhhheeeeeeeeennnnnnnnnn ttttttttttthhhhhhhhhhhhhhhhhheeeeeeeeeeee bbbbbbbbbbbbbaaaaaallllllllllllllllllll’’’’’’’’ssssssssssss kkkkkkkkkkkkkkkiiiiiinetic eeeeeennnnnnnnnnnnnnneeeeeeeeeeeeeerrrrrrrrrrrrggggggggggggggyyyyyyyyyy qqqqqqqqqqqqqqqqquuuuuuuuuuuuuaaddddddddddddddddddrrrrrrrrrrrrrrrruuuuuuples.A ball that weighs .3 kg and is moooooooooooooovvvvvvvvvvvviiiiiiiiiiinnnnnnnnnnnnnnnnnggggggggggggggg at 10 m/s has the kinetic energy of 111111111111111555555555555555 jjjjjjjjjouuuuuuuuuulllllllllllllllleeeeeeeeeeeeessssssssss.... Kinetic energy is the energy of motion. Objects in motion have the ability to do wwwwwwwwwwwwwooooooooooooooorrrrrrrrrrrrkkkkkkkkkkkkkkkkkk. Wind in mmmmmmmmmoooooooooooooottttttttttttttiiiiiiiiiioooooooooooonnnnn caannnnnnnnnnnnnnnnnn mmmmmmmmmmmmmmmmmmmovvveeeeeeeeeeeeeeee rocks across the surface of the Earth. A hammer in motion can drive a nail into a bbbbbbbbbbbbbbbbbbooooooooooooaaaaarrrrrrrrrrrdddddddddddddddd..... TTTTTTTTThe amount of kinnnnneeeeeeetttttttiiiiiiiiiiiicccccccccccc energy an object has depends on its mass and velocity. An increase in either offf tttttttttttttthhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeesssssssssssssseeeeeeeeeeeeee wwwwwwwwwwwwwwwwwiiiiiiiiiiilllllllllllllllll iiiiiiiiiiiiiinnnnnnnnnnnnnnncccccccccccccrrrrrrrease the objeccccccccccccctttttttttttt’ss kinetic energy.
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