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19 Cards in this Set

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