L2

law of conservation of energy

100

what law of energy states that energy can be transformed from one form to another, but it can't be created or destroyed

conservation of energy

200

what takes place when energy moves from one object to another without changing form

energy transfer

300

what occurs when one form of energy is converted to another for of energy

energy transformation

400

what is the transfer of energy that occurs when something makes an object move in the direction of the force

work is the transfer of energy and force makes an object move ( work is only being done while the force is acting on a object )

500

1.some energy is transformed to a form of energy that is not usable, which makes energy transformations what 2. what can a system be 3. a system that exchanges matter or energy with the environment is it open or closed 4. a system that does not exchange matter or energy with the environment is what

1. inefficient 2.closed or open 3. open 4.closed

energy transformations and electric energy

100

1.what kind of energy resource is an energy source that is replaced as fast as or faster than it is used 2. radiant energy from the sun, is energy that is converted into electric energy in solar cells, which is called something 3.what is solar energy sometimes transformed into, which is also used to convert steam;the steam turns a generator, which transforms mechanical energy into what kind of energy

1. renewable 2.solar energy and photovoltaic cells 3. thermal energy and electric energy

200

1.where are wind turbines built 2.what is turned by a turbine, which changes kinetic energy of wind to what other kind of energy

1. places where wind blows most of the time 2. a generator and electric energy

300

1.what kind of power plants uses mechanical energy of falling water being channeled through a turbine, which is transformed to what kind of energy 2.which kind of power plant uses thermal energy from within earth that is transferred to water creating steam, which is used to turn turbines in electric generators

1. hydroelectric plants and electric energy 2. geothermal plants

400

1.what does burning biomass do 2.where does most energy we use come from 3.what kind of energy resource that is available in limited amounts or that is used faster than it can be replaced in nature

1. releases stored chemical energy, which can then be transformed to electric energy 2. fossil fuels and nuclear energy 3.nonrenewable

500

1. what are fossil fuels 2.what is the definition of fossil fuels 3.why do some energy plants use fission

1.petroleum, natural gas, propane, and coal 2. a concerted form of chemical energy that came from plants and animals that lived millions of years ago 3. to produce thermal energy