Section D Flashcards
(17 cards)
What happens when thermal energy moves from an area of high temperature to an area of low temperature?
energy transfer
How many types of thermal energy transfer are there?
three
Radiation
Conduction
Convection
What happens when energy is absorbed by particles?
It increases their temperature.
What is the name of the energy transfer by direct contact, usually in solids?
Conduction
During conduction, what transfers energy to slower-moving particles?
Faster moving particles
What type of energy transfer involves the movement of particles, usually in liquids and gases?
Convection
What does the movement of particles in convection create?
A convection current
In convection, what happens to less dense particles?
They rise.
In convection, what happens to more dense particles?
They sink.
What is transferred globally by convection currents?
Energy
Where is air warmer on Earth—at the equator or the poles?
Equator
What does warmer air do?
Rises
What does cooler air do?
Cools and sinks.
What is the movement of air from high pressure to low pressure called?
Wind
Does warm air exert more or less pressure than cooler air?
Less
What is an example of energy being transferred locally?
Sea breeze
Definition of radiation
Travels as waves or particles. Energy is absorbed by particles which increases their temperature.
