vocab
the ability to do work
what is energy?
energy an object has on it because of its position
what is potential energy?
kinetic energy=
what is mv2/2?
larger mass of an object=
what is greater kinetic energy?
energy from a change in nucleus of atom
what is nuclear energy?
a force that opposes motion between two surfaces that are touching
what is friction
resource naturally replaced faster than used
what is renewable resource?
gravitational potential energy=
two kinds of mechanical energy
what is potential and kinetic energy?
caused by vibrations
what is sound?
energy of motion
what is kinetic energy?
energy resource that cannot be replaced or is replaced slower than used
what is nonrenewable resource?
what is potential energy + kinetic energy?
nuclei split
what is fission?
sun is major source
what is light energy?
what is energy conversion?
energy resources formed by the buried remains of plants and animals that lived millions of years ago
what is fossil fuels?
energy is measured in ________.
what are joules(j)?
nuclei join
what is fusion?
energy of moving electrons
what is electrical energy?
potential energy and kinetic energy
energy cant be created or destroyed
what is the law of conversion of energy?
needed for everything we do
what is energy conversions?
heat
what is thermal energy?
energy transferred from food
what is chemical energy?