Astronomy 2: Question Preview (ID: 26194)

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What occurs when the moon casts its shadow on Earth?
a) lunar eclipse
b) solar eclipse
c) sidereal month
d) synodic month

Seasons are caused by ______.
a) Earth's rotation
b) Earth's precession
c) Earth's tilted axis
d) Earth's distance from the sun

Bodies which are gravitationally bound to one of the planets in a planetary system, either natural or artificial satellites, follow orbits about a barycenter near or within that planet are called _____.
a) geosynchronous orbits
b) bound orbits
c) unbound orbits
d) nutation

The center of mass of two or more bodies, usually bodies orbiting around each other, such as the Earth and the Moon is called______________.
a) nutation
b) precession
c) barycenter
d) rotation

What phase is the moon in just after 1st quarter?
a) waning gibbous
b) waxing gibbous
c) cresent
d) new moon

The moon's period of revolution is 27 1/3 days, and its period of rotation is _____.
a) 29 1/2 days
b) 27 1/3 days
c) 30 2/3 days
d) 33 1/3 days

Gamma rays, X-rays, visible light, and radio waves are all types of ______.
a) chromatic aberration
b) nuclear energy
c) ultraviolet radiation
d) electromagnetic spectrum

When is the daily tidal range greatest?
a) ebb tide
b) spring tide
c) neap tide
d) flood tide

Using the Doppler effect, astronomers can determine a star's _______.
a) temperature
b) chemical composition
c) age
d) movement away or towards Earth

Earth's axis slowly but continuously points in different directions, a movement known as _________.
a) revolution
b) retrograde motion
c) precession
d) rotation

According to the third law of planetary motion, the period of revolution of a planet is related to the planet's_______.
a) size
b) orbital speed
c) gravitational attraction
d) distance to the sun

Using Tycho Brahe's data, which scientist proposed three laws of planetary motion?
a) Newton
b) Kepler
c) Galileo
d) Copernicus

Earth is closest to the Sun at a point called______.
a) perihelion
b) perigee
c) aphelion
d) apogee

Round depressions on the moon's surface are called_____.
a) highlands
b) maria
c) meteorites
d) craters

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