ENERGY TRANSFERS IN A SYSTEM

What is the rule for energy transfers

energy can be transferred usefully, stored or dissipated, but cannot be created or destroyed

What is wasted energy known as

energy that is dissipated, stored in usefulness ways

How can we reduce unwanted energy transfers

lubrication, thermal insulation

What is thermal insulation

brick, wood and glass used to decrease the amount of heat dissipated to surroundings

What is conduction

process where heat is transferred through collisions

What is an insulator

a material that will not allow energy to flow through easily

How is thermal conductivity and rate of energy transferred link

the higher the thermal conductivity, the higher the rate of energy transfer by conduction across the material