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What does the law of conservation of energy state?
Energy cannot be created or destroyed, only changed in form
What form of energy is visible light?
radiant energy
What type of energy is transferred when gasoline is burned in a car engine?
chemical --> mechanical and thermal
which form of energy holds the nucleus of an atom together
nuclear
What happens to most of the energy is any transformation?
Some is transformed into thermal energy
A stretched rubber band is an example of what?
potential energy
What is the transfer of thermal energy due to temperature difference?
Heat
Coal is an example of what type of energy source?
nonrenewable
when thermal energy is added and a substance melts, what happens to the temperature?
Stays the same during the phase change
What is an example of gravitational potential energy?
a book on a shelf
Thermal energy is an example of what?
Kinetic energy
WHich process transfers heat through direct contact?
conduction
Which energy transformation occurs in solar panels?
radiant --> electrical
What is a temperature a measure of?
liquids expand with heat
What type of energy is stored in the bonds of molecules?
chemical energy
Which type of energy transfer occurs in liquids and gases?
convection
WHat is the theoretical temperature where molecular motion stops?
0 degrees Kelvin
What is a situation that would show energy transfer but not transformation/
Holding an ice cube in your hand as it melts
Which energy source results in radioactive waste
nuclear
A ball at the top of the hill has....
potential energy
HOw is thermal energy transferred through space?
radiation
Which energy transformation occurs in a powerplant that burns coal?
chemical-->thermal-->mechanical-->electrical
mechanical energy to electrical
The food you eat originally comes from what kind of energy
radiant-->chemical (via plants)