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MHMS Weather LS2
MHMS Weather Watch Learning Set 2
Term | Definition |
---|---|
thermal energy | the energy of motion of the particles of matter in a substance. |
heat | the transfer of thermal energy from a warmer substance to a cooler one. |
conduction | the transfer of heat through direct contact. |
convection | the transfer of heat in a fluid (gas or liquid) by currents of warm, rising fluid and cool sinking fluid. |
radiation | the transfer of energy by electromagnetic waves. |
electromagnetic waves | a form of energy, such as light, ultraviolet rays, or infrared rays, that can travel through a vacuum. |
solar energy | energy given off by the Sun that travels through space as electromagnetic waves and strikes Earth. |
latitude | the measure of distance north or south of the Equator. |
Equator | an imaginary line around the middle of Earth that is an equal distance from the North and South Poles. |
axis | a line through the center of a body, around which the body rotates, or spins; Earth’s imaginary axis passes through the North and South Poles. |
rotation | one complete turn of a planet around its axis. |
revolution | the orbital motion of one body in space around another. Earth revolves around the Sun. |
ellipse | a shape that is a squashed or flattened circle. |
summer solstice | the day with the greatest number of daylight hours. |
winter solstice | the day with the fewest number of daylight hours. |
equinox | one of two days in the year when the number of daylight hours equals the number of nighttime hours everywhere on Earth. |
specific heat capacity | The amount of heat energy required to raise the temperature of 1 gram of a substance by 1º Celsius. |