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Science Energy Unit
Test 1
Term | Definition |
---|---|
energy | The ability to cause objects to change, move, or work |
gravitational potential energy (GPE) | energy that is stored due to an objects mass or height GPE- mgh(mass x acceleration of gravity x height) |
kinetic energy (KE) | Energy of motion KE= 1/2 mv to the second (depends on mass and velocity (speed of an object)) |
potential energy (PE) | Energy of position Stored energy Ex: at the top of a waterfall |
energy transfermation | The change of energy from one type to another Ex: PE to KE |
energy transfer | Transfer of energy from one object to another Ex: transfer KE of a moving hammer to a moving nail |
friction | A force that apposes motion when two objects touch/rub against each other. |
thermal energy | KE due to random vibrations and movements of molecules and atoms |