Flashcards
Physics II Exam 2
Cards in this deck (27)
- 1conservative forcea force is conservative if the work done by the force on an object moving from one point to another depends only on the final and initial position of the object and is independent of the path taken
- 2examples of conservative forcesgravitational force, spring force, coulomb (electric) force
- 3non-conservative forcesfriction, air resistance, damping forces, tension forces
- 4electric potentialthe electric potential energy per unit charge
- 5equipotential surfacesa surface on which all the points are at the same potential
- 6electric potential of a conductora conductor must be entirely at the same potential in the static case
- 7electric potential of a system of conductorsthe whole system must be at the same potential in the static case
- 8capacitors in seriesthe voltages are not the same
V = V1 + V2 + V3
Q1 = Q2 = Q3 - 9capacitors in parallelthe voltages are the same
V1 = V2 = V3
Q = Q1 + Q2 + Q3 - 10equivalent capacitors in series1/Ceq = 1/C1 + 1/C2 + 1/C3 .....
- 11equivalent capacitors in parallelCeq = C1 + C2 + C3 .....
- 12electrostatic potential energythe electric potential energy per unit charge
- 13capacitancehow much electric charge a capacitor can store
- 14dielectricsincrease capacitance and maximum voltage
- 15electric energy storagebattery does work to charge a capacitor and as a result, the energy is stored on the capacitor
- 16luigi galvaniconducted experiments with frogs legs; the frogs muscles contracted when dissimilar metals were inserted in the leg
- 17alessandro voltareanalyzed galvani's experiment and determined that the contact od the two metals generated a charge and this led him to constructing the first battery
- 18true or false: batteries produce electricity by transforming chemical energy into electrical energytrue
- 19georg simon ohmdiscovered ohms law and is responsible for the SI unit for resistance (ohm)
- 20andre-marie ampereSI unit ampere is named after him
- 21resistorsused to control the amount of current
- 22resistivitydeals with the resisting power of a material to the flow of an electric current
- 23true or false: the bigger the area, the smaller the resistivitytrue
- 24true or false: metals have a small resistivity which makes them great conductorstrue
- 25true or false: materials with large resistivities are good insulatorstrue
- 26powerthe rate at which energy is transformed
- 27james wattSI unit for power (watt)
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- Physics Flashcards on Physics II Exam 2, created by Taylor Barnum on 09/10/2018.
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- Taylor Barnum
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