Energy transfers and stores Flashcards
What is thermal energy?
The total kinetic and potential energy of an object
What is kinetic energy?
The energy of a moving object
What is gravitational potential energy?
The energy of an object at height
What is elastic potential energy?
The energy stored when an object is streched and squashed
What is chemical energy?
The energy stored in chemical bonds, such as those between molecules
What is magnetic/electrostatic energy?
Energy produced by repelling poles.
What is nuclear energy?
The energy stored in the nucleus of an atom
Mechanical energy transfer
A force moving an object through a distance
Electrical energy transfers
charges moving due to potential difference
Heating
temperature difference caused electrically or by chemical reaction
Radiation
Energy transferred in a wave
Kinetic energy equation
kinetic energy=1/2 * mass * (speed)^2
Gravitational potential energy equation
Gpe= mass * gravitational field strength * height
Work done equation
Work done= force * distance
Gravitational field strength of earth
9.81
