Thermal Energy…

More Energy??? Yes, More Energy

Its getting hot in herre…

• All matter is made up of moving particles and has kinetic energy.

• Kinetic Energy is the energy of motion

• Temperature is a measure of the average kinetic energy of particles.

• The faster a particle moves, the more kinetic energy it has.

Its getting hot in herre…

•Thermal energy is the total kinetic energy of particles.

•Thermal energy depends on the number of particles.

•The more particles in an object, the greater its thermal energy.

…on Earth

•Thermal energy carried by ocean currents has a strong influence on climates around the world

•Areas near oceans tend to have more mild temperatures than they would if they were farther inland

•This is because ocean waters can hold large amounts of thermal energy

The world needs…energy

Changes in weather involve air movements, formation of clouds, and precipitation

Energy is needed to make all these changes happen

That energy comes from the sun

Not just for cooking

• Convection is the transfer of energy due to the movement of matter.

• Convection occurs because most matter becomes less dense when it gets warmer.

• It is very important in moving heat through the atmosphere and oceans

Not just for cooking

• Convection currents form as warm and cool matter rise and fall due to temperature and density differences.

• Transfers heat from one place to another

• Energy moves through the atmosphere as warm air rises and cool air sinks.

• All winds result from uneven heating of the atmosphere

Choo Choo…

• Conduction is the transfer of energy from one object to another object through direct contact.

• When objects at different temperatures touch, their particles interact.

• The faster-moving particles of the warmer object transfer energy to the slower-moving particles in the cooler object.

Choo Choo….

•Energy is transferred by conduction from the warmer ground to cooler air at Earth’s surface.

•Warm air can transfer energy to cooler water and cause evaporation. •If water vapor transfers energy to the air, the water vapor may condense.

•Inside Earth, energy can be transferred between rock particles by conduction, but very slowly

• Radiation is the transfer of energy as electromagnetic waves.

• The sun transfers energy to Earth by radiation.

• Radiation can transfer energy between objects that are not in direct contact with each other.