Kinetic Energy Lesson
Presentation
•
Physics
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7th - 12th Grade
•
Hard
Joseph Anderson
FREE Resource
8 Slides • 7 Questions
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Kinetic Energy
physical science
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Multiple Choice
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Multiple Choice
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KE = 1/2 mv2
KE = 1/2 * 60.0 kg * 3.02
KE = 1/2 * 60 * 9
KE = 1/2 * 540
KE = 270 Joules
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** BE CAREFUL**
velocity is the ONLY VARIABLE that is squared
when solving, square velocity FIRST
multiply v2 by mass
divide by 2 (or multiply by 0.5)
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An object moving with a speed of 35 m/s and has a mass of 2.45 kg, what is its kinetic energy?
KE = 1/2 mv2
KE = 1/2 * 2.45 * 352
KE = 1/2 * 2.45 * 1,225
KE = 1/2 * 3,001.25
KE = 1,500.63 Joules
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Multiple Choice
A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?
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Multiple Choice
Kinetic Energy
physical science
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