Unit 6 Physics: work, energy, and power
work
When a force acts upon an object while it is moving, _____ is said to have been done upon the object by that force. ______=Fxs
Kinetic energy
energy that an object possesses due to its motion
Radiation
energy that comes from a source and travels through space and may be able to penetrate various materials. Example: Light, radio, and microwave.
Conduction
the transfer of energy through the movement of particles that are in contact with each other. energy from a warmer substance to a colder one through direct contact, such as someone touching the handle of a hot metal skillet. Material.
Temperature
A measure of the ability of a substance, or more generally of any physical system, to transfer heat energy to another physical system. The ________ of a substance is closely related to the average kinetic energy of its molecules. Measure of how hot or cold something is.
Mechanical energy
The energy of an object due to its motion or position; the sum of an object's kinetic energy and potential energy.
Heat
The form of energy that is transferred between systems or objects with different temperatures.
Convection
The transfer of heat by the movement of a fluid. Q=hA(change in time)
Potential energy
stored energy that depends upon the relative position of various parts of a system
Power
the amount of energy transferred or converted per unit time. ______=W/change in time
Heat transfer
the movement of energy from a warmer object to a cooler object
Energy
the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
