Lesson 2 IE

Question 1

What is the declination of the Sun

Answer 1

Latitude receiving the vertical rays of the Sun (striking surface at right angle)

Earth is tiled about 23.5 degrees from the perpendicular. Inclination and polarity, revolution create seasons.
Axis always points in same direction relative to the stars. (North Star, Polaris) (polarity of earth’s axis)

Question 2

What is solar altitude

Answer 2

Height of the noon Sun above the horizon at different latitudes

Question 3

What is circle of illumination

Answer 3

Dividing line between half of earth receiving daytime and nighttime

N/S hemisphere tilted towards the sun has longer days

Question 4

What is polarity

Answer 4

axis of rotation always points towards the North Star (polarity)

Question 5

What is inclination

Answer 5

angle of the earth from the perpendicular - 23.5

Question 6

What is plane of the ecliptic

Answer 6

constant plane that the earth travels on as it orbits the sun

Question 7

What is the angle of incidence

Question 8

What is the Universal Time Coordinated

Answer 8

Formerly Greenwich Mean Time - starts at prime meridian

Question 9

latent heat

Answer 9

energy stored by water during melting and evaporation, released during freezing and condensation

Question 10

Rotation

Answer 10

Earth rotates from west to east - things rise in the east and set in the west
counterclockwise when looking down from NP
biggest effects - daily lightness/darkness
gravitational pull/movement of tides
Deflection in the path of wind and ocean currents - Coriolis effect