Earth, Moon, & Sun
Phases of the Moon
Solar Eclipses
Tides
100
Earth has two types of motion, what motion results in the day/night cycle?
Rotation around its axis
100
What side (right/left) of the moon is illuminated during the waxing phase?
The right side
100
What is the darkest, fully shaded, inner region of a shadow casted by an object?
The umbra
100
What is a spring tide?
Spring tide results in the highest of high tide and the lowest of low tide. This creates a large tidal range.
200
What is the reason for the seasons?
Earth's axis is tilted 23.5 degrees! This results in the northern and southern hemisphere being either tilted towards or away from the sun. When the northern hemisphere is in summer, it is recieving direct light while the southern hemisphere is in winter receiving indirect sunlight.
200
What two forces keep the moon in orbit around the earth?
Gravity and Inertia
200
In what shaded region would you see a partial eclipse and a total eclipse?
Partial eclipse = Viewed under the penumbra
Total eclipse = View under the umbra
200
The period of the lunar cycle that produces the smallest difference between high and low tide is know as what
Neap Tide
300
The revolution of the earth results in what time-keeping phenomena?
The year cycle (One orbit around the sun)
300
Diagram a waning gibbous showing both the parts we see and don't see
300
Why do solar and lunar eclipses NOT occurs once every month?
The Moon has an orbital tilt of 5 degrees relative to the Earth's orbit around the sun
300
Diagram the correct positions of the sun, moon, and earth that produce a neap tide