Flashcards
energy transfers and transformations
Flashcards do conjunto (38)
- 1energythe ability to do work
- 2chemical energyenergy stored in the bonds of chemical compounds (food)
- 3electrical energyenergy made available by the flow of electric charge through a conductor
- 4solar energyenergy from the sun
- 5wind energyenergy produced by wind
- 6mechanical energyenergy capable to do work/energy of movement
- 7elastic energypotential energy that is stored when a body is deformed
- 8energy transformationwhen energy changes from one form to another
- 9energy transfersthe movement of energy from one form to another
- 10sound energyenergy that creates noise through vibrations
- 11potential energystored energy
- 12kinetic energyenergy of movement
- 13nuclear energythe energy produced by the bonding of atoms
- 14gravitational potential energythe energy due to the position of a body or object in a gravitational field.
- 15velocityspeed and direction
- 16thermal energyheat energy
- 17massthe amount of matter in an object
- 18law of conservation of energyenergy cannot be created or destroyed
- 19frictionwhen two things rub together
- 20wasted energyenergy that is not used; wasted on friction
- 21voltagethe amount of electricity in a power source
- 22voltsthe difference in electric potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points; voltage is measured in volts
- 23ampstype of measurement; used to measure current
- 24energy chainone energy change follows another
- 25weightthe force exerted on a body by gravity
- 26useful energyenergy used
- 27input energythe total amount of energy you start with
- 28Sankey diagramsummaries all the energy transfers taking place in a process
- 29currentflow of electricity in a circuit
- 30protona particle with a positive electric charge
- 31electronparticle with negative charge
- 32circuita path between two or more points along which an electrical current can be carried.
- 33van de graaff generatoran electrostatic generator which uses a moving belt to accumulate electric charge on a hollow metal globe on the top of an insulated column, creating very high electric potentials
- 34loadwhat uses the electricity in a circuit
- 35GPE (calculation)mgh (GPE = Gravitational Potential Energy, m=mass, g=9.81 m/s2, h=height)
- 36KE (calculation)½ mv2 (KE= Kinetic Energy, m=mass, v=velocity)
- 37V (calculation)d/t (v=velocity, d = distance, t = time)
- 38efficiencyuseful energy/input energy x 100
Informações
- Descrição
- vocabulary, definitions, equations, things I should be able to do. *summative test*
- Criado por
- Laurette Zajpt
- Visualizações
- 11
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