Heat and Temperature.

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Presentation transcript:

Heat and Temperature

Big Idea: Temperature Depends on Particle Movement Solid Liquid Gas

1. Temperature • All particles in matter have kinetic energy, or the energy of movement. Temperature is the measurement of the kinetic energy (or motion) of particles

1. Temperature Temperature can be measured on the Fahrenheit, Celsius, or Kelvin scales.

1. Temperature Particles in a warmer substance have a greater average kinetic energy than particles in a cooler substance. hot liquid cold liquid

2. Kinetic Theory Of Matter The energy of motion. A moving object has the most kinetic energy at the point where it moves the fastest.

3. Temperature Scales See board for diagram!

II. Big Idea: Energy flows from warmer to cooler objects. Energy is transferred from the warmer lemonade to the cold ice through heat. ice heat

HEAT The flow of energy from an object at a higher temperature to an object at a lower temperature. 2. Energy that is transferred from a warmer object to a cooler object.

Thermal Energy The energy an object has due to the motion of its particles; the total amount of kinetic energy of particles in an object

3. Methods of Heat Transfer Conduction Conduction occurs in solids only. Conduction is the transfer of heat energy from atom to atom by physical contact

3. Methods of Heat Transfer Convection Convection occurs in liquids and gases. Convection is the transfer of heat energy by the movement of the atoms themselves

3. Methods of Heat Transfer Radiation Radiation is heat transfer with no atoms. Transfer of heat energy through waves.

Heat Transfer

Conductors A material that transfers heat and electrical energy easily. Examples silver copper gold aluminum iron steel

Insulators 1. A material that does not transfer heat or electrical energy easily. Examples glass rubber oil porcelain ceramic quartz plastic