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LSH Pscience Unit 3


Energy The ability to cause change or to do work
Kinetic Energy The energy an object has because of its motion
Joule The SI unit for measuring energy
Potential Energy Stored energy
Mechanical Energy The total energy in a system; the kinetic and potential energies
The Law of Conservation of Energy Energy is not created or destroyed, but is transformed
Nuclear Fission The splitting of a nucleus
Nuclear Fusion Combining 2 or more nuclei into one nucleus
Momentum The mass x velocity of an object
The Law of Conservation of Momentum Momentum is conserved in a collision (transferred partially or fully but not lost)
Work A force moving an object
Power The rate of doing work
Work equation Work = Force x distance
Power equation Power = Work/time
Watt The SI unit for measuring power