Unit 4- Energy Flashcards
Stored energy
Potential energy
Energy in motion
Kinetic Energy
Energy is measured in….
Joules (J)
Kinetic energy formula
1/2mv^2
one-half the mass in kilograms times velocity squared
Stored energy due to an object’s position
Gravitational potential energy (GPE)
GPE formula
mgh
mass in kilograms times gravity times the object’s height in meters
Potential energy is zero at….
the ground and lowest possible point
Energy stored in the bonds of atoms and molecules. Biomass, petroleum, natural gas, propane, coal, and food are examples
Chemical Energy
Energy stored in the nucleus of an atom
Nuclear energy
When nuclei break apart
fission
When nuclei fuse
fusion
Energy stores in objects by the application of a force (compressed strings, stretched rubber bands)
Stored Mechanical Energy
Energy of a place or position.
Gravitational Energy
Electromagnetic Energy that travels in transverse waves. Visible light, x-rays, gamma rays, radio waves, solar energy, are examples
Radiant Energy
Heat- the internal energy in substances. Usually the last transfer
Thermal Energy
