The Sun's Energy Flashcards
0
Q
What is convection?
A
The transfer of heat from one place to another, when matter is in direct contact and is in motion due to density changes to liquid or gas.
1
Q
Define thermal energy.
A
Energy radiated by hot objects such as the Sun in the form of electromagnetic radiation.
2
Q
Define the atmosphere.
A
The whole mass of air surrounding the Earth. It is made up of 78% nitrogen, 21% oxygen, and 1% of other trace gases.
3
Q
What is wind?
A
A natural movement of air sometimes with considerable force from an area of high density and pressure to an area of low density and pressure.
