Exam 1

A  TRUE

B  FALSE

A  One week

B  Three to four days

C  One month

D  Two weeks

A  the corona of the sun.

B  the photosphere of the sun.

C  prominences.

D  the chromosphere of the sun.

A  New phase and below the plane of Earth’s orbit.

B  Full phase and below the plane of Earth’s orbit.

C  New phase and crossing Earth’s orbital plane.

D  None of these.

E  Full phase and crossing Earth’s orbital plane.

A  the sun is always on the celestial equator.

B  summer solstice and the winter solstice.

C  autumnal equinox and the vernal equinox.

D  the sun is on the ecliptic and is never on the celestial equator.

A  Vernal equinox

B  Winter solstice

C  Summer solstice

D  Autumnal equinox

A  The observed phase of the Moon changes over the course of one night.

B  The phases of the Moon cycle with a period of approximately one month.

C  Everyone on Earth observes the same phase of the Moon on a given night.

D  In some phases, the Moon can be observed during the day.

A  less than half

B  half

C  more than half

D  none

E  all

A  The large communications satellite will have an orbital period that is twice as long as the weather satellite.

B  None of these.

C  The large communications satellite will have an orbital period that is half as long as weather satellite.

D  The large communications satellite will have an orbital period that is more than twice as long as the weather satellite.

A  Isaac Newton

B  Johannes Kepler

C  Galileo Galilei

D  Tycho Brahe

E  Nicholas Copernicus

A  traveled in elliptical orbits.

B  were allowed to travel backwards in their orbits.

C  traveled on epicycles whose centers followed orbits around the Earth.

D  travel in circular orbits with uniform motion.

A  The moons did not appear to orbit the Earth.

B  The moons did not appear to orbit the Sun.

C  The moons appeared to be too small, and therefore too far away, to be considered part of the solar system.

D  The moons moved in non-circular orbits about Jupiter.

A  is the model we currently use.

B  included elliptical orbits.

C  was heliocentric.

D  contained epicycles.

A  that Mars moves with retrograde motion

B  that the Sun rotates on its axis

C  that Venus goes through phases

D  that Jupiter has several moons orbiting it

E  that Saturn has rings

A  both a line around the sky directly above Earth’s equator and the dividing line between the north and south celestial hemispheres.

B  both the dividing line between the north and south celestial hemispheres and the path that the sun appears to follow on the celestial sphere as Earth orbits the sun.

C  the dividing line between the north and south celestial hemispheres.

D  the path that the sun appears to follow on the celestial sphere as Earth orbits the sun.

E  a line around the sky directly above Earth’s equator.

A  TRUE

B  FALSE

A  The revolution of the Moon around the Earth

B  The revolution of the Earth around the Sun

C  The Earth’s rotation on its axis

D  The revolution of the Sun around the Earth

A  our longitude is +35°

B  our latitude is +35°

C  our latitude is +55°

D  our longitude is +55°

A  Newton’s 3rd Law

B  Newton’s 1st Law

C  Newton’s 2nd Law

D  Newton’s Law of Gravitation

A  All of the changes listed would cause the same increase in the force.

B  double the mass of the Moon.

C  move the moon two times closer to Earth.

D  double the mass of Earth.

E  None of the changes listed could cause the force to increase.

A  first quarter and third quarter moons.

B  new moon and full moon.

C  noon and midnight.

D  new moon and first quarter moon.

E  third quarter and full moons.

A  The tides on Earth are caused by the tilt in the Earth’s axis.

B  The tides on Earth are caused by changes in the Earth’s orbital speed.

C  The tides on Earth are caused by the pull of the Moon’s gravity.

D  The tides on Earth are caused by the pull of the Sun’s gravity.

A  There is an unbalanced force acting on it.

B  Its acceleration is not zero.

C  Its velocity is not zero.

D  Its acceleration is zero.

A  Johannes Kepler

B  Nicolaus Copernicus

C  Tycho Brahe

D  Isaac Newton