AP Physics: Work and Energy Flashcards
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8237159968 | Kinetic Energy Formula | 1/2 mv^2 | 0 | |
8237159969 | The Two Forms of Kinetic Energy | Translational (when an object's center of mass is moving) and Rotational (when an object rotates) | 1 | |
8237159971 | Define Gravitational Potential Energy (Ug) | Energy stored in a gravitational field | 2 | |
8237159972 | Ug Formula near a planet | mgh | 3 | |
8237159974 | Define Elastic Potential Energy (or, Spring Potential Energy (Us)) | Energy stored by a spring | 4 | |
8237159975 | Us Formula | 1/2 kx^2 | 5 | |
8237159979 | Define Mechanical Energy | refers to the sum of potential and kinetic energies | 6 | |
8237159980 | Define work | work is done when a force acts on something that moves in a distance parallel to that force | 7 | |
8237159981 | Define Power | energy used per second, or work done per second | 8 | |
8237159982 | Work Formula(s) | Work = force times parallel displacements, so W=Fd, or W=Fdcosx | 9 | |
8237159983 | Explain negative vs. positive work | When a force is exerted in the same direction as the object's motion, the work done is considered to be a positive quantity; when a force is exerted in the opposite direction of the object's motion, the work done is considered to be negative. | 10 | |
8237159984 | Define Net Work | The algebraic sum of the work done by each force | 11 |