energy stores and transfers Flashcards
what are the 8 energy stores
magnetic internal/thermal kinetic chemical gravitational potential elastic potential nuclear electrostatic
what are the 4 energy transfers
heating
radiation
electric
mechanical
what is kinetic energy
energy an object has because its movin
what is gravitational potential energy
the energy an object has due to its height above ground
what is elastic potential energy
the energy an elastic object has when its stretched or compressed
what is an objects internal energy
the energy an object has due to its temperature - sum of total kinetic and potential energy
what is a objects magnetic energy
energy an magnetic object has when its near a magnet or in a magnetic field
what is an objects nuclear energy
the energy stored in the nucleus of an atom
what is chemical energy
energy that can be transferred by chemical reactions involving foods, fuels and the chemicals in batteries
what is an objects electrostatic energy
the energy a charged object has when its near another charged object
what is lubrication
a way of reducing unwanted energy transfer due to friction
what is streamlining
a way to reduce unwanted energy transfer due to air resistance or drag in water
how do we reduce heat dissipation
thermal insulation
what is gravitational field strength measured in ?
newtons per kilogram - N/kg
what is mass measured in
kg
