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19 Cards in this Set
- Front
- Back
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What is energy?
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the ability to do work or cause change
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what is the unit used to measure energy?
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Joules
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Who is Joules named after and when was this created?
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James Prescott Joules, mid 1800's
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What are the two types of energy?
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potential and kinetic
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What is potential energy?
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stored energy
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What are examples of potential energy?
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objects lifted off ground, person's body, gas, coal, oil, food
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What are the two types of potential energy?
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chemical potential energy, gravitational potential energy
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What is gravitational potential energy?
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potential energy caused by gravity
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How do you get gravitational potential energy?
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lift up off the earth
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What is the formula for potential energy due to gravity?
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mass*9.8m/s/s*height
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What is kinetic energy?
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energy in motion, energy being used
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What affects the amount of Kinetic energy?
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mass and velocity
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What is the formula for kinetic energy?
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mass*velocity squared/2
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What are the 8 kinds of energy?
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heat, electrical, light, nuclear, mechanical,chemical, gravitational, sound
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What is electrical and light?
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its kinetic energy, ex: radio, t.v., microwaves, ultraviolet, Xray
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What is heat energy?
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thermal, movement of particles, Ex: fire stone and friction, its kinetic
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What is nuclear?
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splitting or combining nucleus of atom, Ex: sun, nuclear power...potential
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What is mechanical?
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energy in motion, Ex: wind, water, machines, running...kinetic energy
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What is chemical?
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stored in fuels, Ex- coal, gas, wood, food, potential
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