Heat Transfer and Energy Concepts

Front

Convection definition

Back

of heat by movement of fluids (liquids or gases)

Front

Conduction definition

Back

of heat through direct contact between particles

Front

Radiation definition

Back

of heat through electromagnetic waves, no medium needed

Front

Three methods of heat transfer

Back

convection, radiation, convection

Front

Expansion and contraction of matter

Back

expands when heated, contracts when cooled

Front

Insulators vs. conductors (thermal)

Back

slow heat transfer; conductors allow heat to pass easily

Front

Complete electrical circuit requirement

Back

loop needed for current to flow

Front

Comparing insulated vs. non-insulated materials

Back

materials retain heat better than non-insulated ones

Front

Reasoning: Why metals feel colder than wood at same temperature

Back

conduct heat away from skin faster than wood

Front

Planning: Choosing materials for a solar cooker

Back

insulators to keep heat in, conductors to absorb sunlight