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10.MA4Force& Energy
10.MA4Force&Energy
Term | Definition |
---|---|
energy | ability to do work or cause change |
joule | SI unit for energy (and work) |
transformation | change |
kinetic energy | energy of motion (part of mechanical energy) KE + PE = mechanical |
potential energy | energy of position (part of mechanical energy) KE + PE = mechanical |
gravitational potential energy | same as Potential Energy- just referenced to its position above the earth; higher up it is, the more gravitational potential energy it has |
law of conservation of energy | energy cannot be created nor destroyed; only changed or transformed into another form |
reference point | place or object you are comparing motion to |
motion | going from one point or position to another |
magnitude | strength |
vector | direction |
speed | the rate at which motion occurs- distance compared to time; d/t |
velocity | speed with direction |
acceleration | rate at which velocity changes; compares starting and ending velocity divided by time |