Physics Energy Flashcards
Why is it important scientists develop new energy sources
Because most energy sources are bad for the environment
What name is given to total kinetic energy and potential energy for all particles of helium gas in a balloon
Internal energy
A wind turbine has the output of 0.60
A coal fire power station has a continuous power output of 1,500
Calculate how many wind turbines would need to generate same power out put as coal station
2500
1500/0.60
Energy can be stored in
Moving objects
Energy is stored in moving objects as a
Kinetic energy source
Warm objects are a
Thermal energy store
What is a closed system
A system that has no net change in its total energy transfers that occur within it
Conversation energy
Energy can be transferred but never destroyed
Elastic potential
Store of energy that’s compressed or stretched
Fossil fuels examples
Coal,gas,oils
Gravitational potential energy
Distance it has been risen
Kinetic energy
Movement
Power definition
Rate of which something is transferred
Renewable energy source definition
A energy that can be reused such as wind
