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Heat transfer occurs in three main ways: conduction, convection, and radiation. Conduction involves direct contact, such as a metal spoon heating up on a stove. Convection refers to the movement of fluids, exemplified by hot water rising in a pot. Radiation is the transfer of energy through electromagnetic waves, like feeling the warmth of a fire across the room. Heat naturally moves from warmer objects to cooler ones, with conductors (like metals) efficiently transferring thermal energy, while insulators (like wood and wool) do not.
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Heat is transferred by conduction, convection, and radiation
Conduction • Heat is transferred from 1 particle of matter to another through touch • Example: metal spoon on stove burner, spoon gets hot
Convection • Heat is transferred by movement of currents through fluids. • Example: water heating on a stove, hot water moves faster and goes to the top of the pot
Radiation • Transfer of energy by electromagnetic waves • Example: feel heat of a fire across the room
Heat Movement • Heat flows from the warmer object to the colder one
Conductors and Insulators • Conductors transfer thermal energy well • Example: metals • Insulators do not transfer thermal energy well • Example: wood, wool
