Stuff to Remember Flashcards
Characteristics of Elastic Collision
Total kinetic energy conserved
Objects do not stick together
Characteristics of Inelastic Collision
Total kinetic energy not conserved
Objects do not stick together
Characteristics of Perfectly Inelastic Collision
Total kinetic energy not conserved
Objects stick together
Ideal Gas Characteristics
(Constant random motion)
Don’t interact except in collisions (forces between particles negligible)
Volume of particles: negligible (in comparison to container
Collisions between particles: elastic
Types of Heat (transfers of thermal energy)
Conduction
Convection
Radiation
Conduction definition
Thermal energy transfer in a solid by means of microscopic atomic and molecular vibrations within a solid material, without macroscopic motion of the whole solid.
Rate of thermal energy transfer (via conduction) along a cylinder is proportional to:
cross-sectional area (as with electrical current)
temperature gradient over the length (equivalent to electrical potential gradient)
inverse of the thermal resistivity of the material (equivalent to electrical resistivity).
Convection definition
Thermal energy transfer in a fluid (liquid or gas) by the motion of warmer fluid regions that carry them away from the heat source. The warmer, lower-density fluid regions move and transport their energy.
Convection affects all of a fluid.
Radiation definition
Radiation is energy transfer through the emission of electromagnetic waves that transport energy away from the emitting object. No material medium is required for radiation transmission.
