Energy Flashcards
Kinetic Energy
What factors affect kinetic energy?
Energy of a moving object
1/2 x Mass x Velocity
Meteors, walking, falling, throwing a ball
Potential Energy
Stored energy
Nuclear Energy
Energy of the atom being split or fused
Thermal Energy
Electrical Energy
Energy of moving electrons
Radiant Energy -
Light energy - electromagnetic radiation
Gamma waves, x-rays, ultraviolet rays, visible light
Mechanical Energy
Energy (kinetic or potential) of moving objects or stored
ME = PE + KE
Chemical Energy
Energy of molecular bonds
Food, batteries, fuel
Thermal Energy
Heat - moving of molecules
Warm to cold - cold does not exist
Cooler objects molecules move less
What is the unit of measurement of energy
Joule
1000 Joules = 1 KJ
Gravitational Potential Energy
What factors affect gravitational potential energy?
Energy of an object above the ground being pulled by the Earth’s gravity
PEg=Mass (KG) x gravity x Height
Law of Conservation of Energy
Energy cannot be created or destroyed but transformed from one form to another
Examples: Slide, boulder on a rock
Renewable Energy
Energy sources that can naturally replenish themselves quickly
Solar, Wind, Geothermal
Non-renewable resources
Sources of energy that run out before nature can replace them
Fossil Fuels - Oil, gas, coal, natural gas
Contributes to climate change
Fussion
How nuclear energy is released - joining atoms to create larger
