Question | Answer |
the ability to do work | energy |
the energy of an object that is due to the objects motion | kinetic energy |
the energy that an object has because of the position, shape, and condition of the object | potential energy |
the amount of work an object can do because of the object's kinetic and potential changes | mechanical energy |
a change from one form of energy to another | energy conversion |
a force that opposes motion between two surfaces that are in contact | friction |
the law that states that energy cannot be created or destroyed but can be changed from one form to another | law of conservation of energy |
a resource that forms at a rate that is much slower than the rate at which the resource is consumed | nonrenewable resource |
a nonrenewable energy resource formed from the remains of organisms that lived long ago | fossil fuel |
a natural resource that can be replaced at the same rate at which the resource is used | renewable resource |
a measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object | temperature |
an increase in the size of a substance in response to an increase in the temperature of the substance | thermal expansion |
the temperature at which molecular energy is at minimum | absolute zero |
the energy transferred between objects that are at different temperatures | heat |
the kinetic energy of a substance's atoms | thermal energy |
the transfer of energy as heat through a material | thermal conduction |
a material through which energy can be transferred as heat | thermal conductor |
a material that reduces or prevents the transfer of heat | thermal insulator |
the movement of matter due to the differences in density; the transfer of energy due to the movement of matter | convection |
the transfer of energy as electromagentic waves | radiation |
the quantity of heat required to raise a unit mass of homogeneous material 1K or 1 degree C in a specified way given constant pressure and volume | specific heat |
the physical forms of matter , which include solid, liquid, and gas | states of matter |
the change of a substance from one physical form to another | change of state |
a substance that reduces the transfer of electricity, heat, or sound | insulation |
a machine that transforms heat into mechanical energy, or work | heat engine |
a temperature increase in a body of water that is caused by human activity and that has a harmful effect on water quality and on the abliity of that body of water to support life | thermal pollution |