What is Heat Heat transfer of energy between

What is Heat? • Heat - transfer of energy between objects that are different temperatures. • Transferred HIGH to LOW

Heat is a Transfer of Energy If heat is a transfer of energy, what FORM of energy is being transferred?

Heat and Thermal Energy • Thermal Energy is the total energy of the particles that make up the substance.

Heat and Thermal Energy Which has more thermal energy, a substance at a high temperature or a substance at a low temperature? – An object at a high temperature. Why?

Heat and Thermal Energy • Thermal energy also depends on how much of a substance you have. • Which has more thermal energy, an ice berg or a pot of boiling water? – An ice berg, but why?

Reaching the Same Temperature • Energy will always be transferred from the object with higher temperature to the object with the lower temperature until both objects reach the same temperature. • This is called reaching Thermal Equilibrium. Example: Drinks in a cooler

3 Types of Heat Transfer

Conduction • the transfer of thermal energy through direct contact. CONDUCTION = CONTACT

Convection • the transfer of thermal energy by the movement through a liquid or gas (currents) • Particles move in a circular patterns • CONVECTION = VENTS

Radiation • the transfer of energy through matter or space as electromagnetic waves. • RADIATION = RADIATES

Examples Around the Room… • You are looking for 2 examples of each. • Write them on the back side of each flap • Sit quietly when finished, we will check answers.

CONDUCTION EXAMPLES

CONVECTION EXAMPLES

RADIATION EXAMPLES