# Movements In Space Review: Question Preview (ID: 18187)

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According to Kepler's first law of planetary motion,
a) a planet's orbit is circular, with the sun at the center of the circle.
b) a planet's orbit is elliptical, with the sun at the center of the ellipse.
c) a planet's orbit is elliptical, with the sun at one focus of the ellipse.
d) a planet's orbit is elliptical, with the sun moving back and forth between the ellipse's two foci.

During which event do the hours of daylight on Earth equal the hours of night?
a) aphelion
b) equinox
c) perihelion
d) solstice

The movement of one body around another body in space along an elliptical path is called
a) an eclipse
b) a focus
c) an orbit
d) a rotation

The spin of a body on its axis is called
a) axial tilt
b) orbital period
c) revolution
d) rotation

At which position in Earth's orbit is Earth closest to the sun?
a) aphelion
b) equinox
c) perihelion
d) solstice

A student argues that because Earth is closest to the sun at perihelion, all of Earth experiences summer at perihelion. Is the student correct?
a) Yes. All of Earth experiences summer at perihelion.
b) No. Earth is farthest from the sun at perihelion. Therefore, all of Earth experiences winter at perihelion.
c) No. Although Earth is closest to the sun at perihelion, only the hemisphere tilted toward the sun experiences summer.
d) No. Earth is farthest from the sun at perihelion. In addition, only the hemisphere tilted toward the sun experiences summer.

According to Kepler's third law of planetary motion,
a) the cube of a planet's orbital period is directly proportional to the square of its average distance from the sun
b) the square of a planet's orbital period is directly proportional to the cube of its average distance from the sun
c) the cube of a planet's orbital period is inversely proportional to the square of its average distance from the sun
d) the square of a planet's orbital period is inversely proportional to the cube of its average distance from the sun

What happens during a lunar eclipse?
a) The moon is entirely obscured because the sun is between Earth and the entire moon.
b) The moon is partially obscured because the sun is between Earth and part of the moon.
c) The moon is in shadow because Earth is between the moon and the sun.
d) Part of Earth is in shadow because the moon is between Earth and the sun.

Which of the following causes the phases of the moon?
a) the changing position of the moon relative to Earth only
b) the changing position of the moon relative to the sun only
c) the changing position of the moon relative to Earth and the sun
d) none of the above

What event occurs when one celestial object or that objectâ€™s shadow obscures the view from Earth?
a) eclipse
b) equinox
c) solstice
d) tide

At which position in Earth's orbit is Earth farthest from the sun?
a) aphelion
b) equinox
c) perihelion
d) solstice

Which term describes any object that revolves around a larger object in space?
a) asteroid
b) moon
c) planet
d) satellite

Which of the following is not a phase of the moon?
a) first quarter
b) waning quarter
c) waxing crescent
d) waxing gibbous

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