Show:
Earth
Sun
Moon
Solar System
Time/ Seasons
100
The Earth reaches its greatest orbital speed when it is..
What is closet to the Sun.
100
What is the radius of the Sun?
What is 696,000 km.
100
The phases of the moon are caused by the..
What is Moon's revolution around the Earth.
100
The day of the year, as units of time, are based upon motions of..
What is the Earth.
100
In the Northern Hemisphere, during which season does the Earth reach its greatest distance from the Sun?
What is summer?
200
Which planet has a diameter most similar to Earth's?
What is Venus?
200
The radius of the Sun is approximately how many times greater than the radius of the Moon?
What is 400.
200
Which motion causes the Moon to show phases when viewed from the Earth?
What is the revolution of the Moon around the Earth.
200
The geocentric model of the solar system does not explain..
What is planetary motions.
200
Upon which frame of reference is time based?
What is the motions of the Earth.
300
During what season does the Earth reach its greatest distance from the Sun?
What is summer?
300
A sundial measures time based upon the position of the Sun in the sky. This is called..
What is apparent solar time.
300
What indication shows that the Moon's distance from the Earth varies?
What is the apparent change in the diameter of the Moon.
300
When will the gravitational attractions between the Earth and the Sun be greatest?
What is when the Earth is closest to the Sun.
300
Cities located on the same meridian (longitude) must have the same..
What is solar time.
400
What is the exact shape of the Earth's orbit around the Sun?
What is a slightly eccentric ellipse.
400
Over several years, the apparent size of the Sun as view by an observer on Earth will probably..
What is vary in a cyclic manner.
400
What phase of the moon is after a Waxing Crescent?
What is First Quarter.
400
Which planet has the most eccentric orbit?
What is Pluto.
400
Which statement best explains the apparent daily motion of the Sun?
What is the Earth rotates on its axis.
500
The tilt of the Earth on its axis is a cause of the Earth's..
What is changing length of day and night.
500
During a period of one year, what would be the greatest altitude of the Sun at the North Pole?
What is 23 1/2 degrees.
500
How many moons does Mars have?
What is two.
500
What would be the most likely period of revolution for Uranus?
What is 84 years.
500
When does solar noon always occur for an observer in New York City?
What is when the Sun reaches its maximum altitude.