Sun-Earth-Moon System Part #2: Question Preview (ID: 25229)

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Farthest point from Earth in the Moon’s orbit
a) perigee b) ejecta c) synchronous rotation d) apogee
The portion of sunlight reflected by an astronomical body’s surface
a) ecliptic b) mare c) albedo d) perigee
The state at which an astronomical body’s rotational period and orbital period are equal
a) spinoff b) synchronous rotation c) interferometry d) albedo
Earth’s position when the lengths of day and night are equal
a) solar eclipse b) summer solstice c) winter solstice d) autumnal equinox
Earth’s position around June 21, at which the northern hemisphere has its maximum daylight hours
a) autumnal equinox b) winter solstice c) ecliptic d) summer solstice
Plane of Earth’s orbit
a) ecliptic b) apogee c) perigee d) ejecta
Technology developed in the space program that now has common commercial uses
a) interferometry b) reflecting telescope c) spinoff d) synchronous rotation
The Hubble Space Telescope orbits Earth every 97 minutes. Calculate how long it would take the Hubble Space Telescope to orbit Earth 30 times.
a) 4 hours, 30 minutes b) 4 hours, 51 minutes c) 48 hours, 50 minutes d) 48 hours, 30 minutes
A lunar eclipse occurs when the Moon passes through Earth's ____.
a) atmosphere b) orbit c) shadow d) umbra
A scientist looking for an optimal location for a new observatory should choose a location________.
a) in a large city b) in an area with an elevation below sea level c) on a remote hilltop d) in a low-lying river valley
One reason different seasons occur on Earth is because Earth’s _____ is tilted 23.5° relative to the ecliptic.
a) orbit b) axis c) ecliptic d) hemisphere
Our timekeeping system is based on the ____.
a) sidereal day b) solar day c) phases of the moon d) Earth's tilt
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