Physical Science, module 7 Flashcards
Define “perihelion”.
The point at which the earth is closest to the sun.
Define “Coriolis effect”.
The way in which the rotation of the earth bends the path of winds, sea currents, and objects that fly through different latitudes.
Define “air mass”.
A large body of air with relatively uniform pressure, temperature,and humidity.
Define “weather front”.
A boundary between two air masses.
Define “aphelion”.
The point at which the earth is farthest from the sun.
What are the four basic cloud types?
Cumulus, cirrus, stratus, and lenticular clouds.
What are the three main factors that affect earth’s weather?
Thermal energy, uneven distribution of thermal energy, and water vapour in the atmosphere.
What does “insolation” stand for?
Incoming solar radiation.
Why isn’t there a constant stream of wind blowing from the poles to the equator?
Because cold air that begins moving south warms up, rises, and begins traveling back north.
Why is the axial tilt of the earth good?
Because it allows the sun to shine on and warm a larger portion of the earth.
