WorksheetsAstronomy Chapter 2 Test
Total questions: 20
Worksheet time: 10mins
Which of these is not an evidence that the Earth is round.
The Earth's shadow on the Moon is curved during eclipses
Ships sails appear to sink as they move toward the horizon
A traveler moving south will see stars previously hidden below the horizon
The fact that venus goes through phases
Which of these refers to how big an object appears in the sky.
Linear Diameter
Circumference
Volume
Angular Diameter
What would happen to an object's angular size if it were moved 10 times farther from the earth
it would be 10x bigger
it would be 1/10 of its origional size
it would be 100x bigger
it would be 1/100 its origional size
An apparent shift in an objects position caused by the observers motion is:
parallax
angular diameter
retrograde motion
polarity
Stars that are closer to earth:
have a greater parallax shift
have a smaller parallax shift
have no parallax shift
Why were early astronomers unable to detect the parallax of distant stars?
It was too small for them to detect
it wasn't happening then
It was too large for them to detect
A planet appearing to reverse the direction it is moving in the night sky for a time is known as:
parallax
retrograde motion
doppler shift
angular diameter
Why do we observe retrograde motion in our solar system?
planets moving within thier epicycles
Earth moves faster around the sun than other objects
The planets actually go backward
Some planets move around the sun faster than the Earth does.
Some planets move around the sun faster than the Earth does.
Aristotle
Aristarchus
Erasthenes
Ptolemy
Estimated the sizes of the Moon and the Sun.
Aristotle
Aristarchus
Copernicus
Kepler
Accurately calculated the circumference of the Earth.
Aristotle
Aristarchus
Erasthenes
Erasthenes
Discovered Uranus and binary star systems.
Herschel
Galileo
Kepler
Newton
Explained retrograde motion using a heliocentric model of the solar system.
Erasthenes
Ptolemy
Copernicus
Tycho Brahe
Developed three laws of planetary motion.
Herschel
Newton
Kepler
Copernicus
Furthur proved a heliocentric solar system by discovering that venus has phases and and Jupiter has its owm moons
Galileo
Newton
Kepler
Tycho Brahe
"a" in the diagram below is labeling what part of an ellipse?
Major Axis
Minor Axis
Focus
Semi-Major Axis
The Sun is located on one of two of these parts of an ellipse
Major Axis
Minor Axis
Focus
Semi-Major Axis
Which of Kepler's Laws states that planets have elliptical orbits?
Law 1
Law 2
Law 3
Law of Gravity
If a planet had a 1 AU semi-major axis what would its orbital period be?
1
2
3
.5
Which of Kepler's Laws describes the relationship between size of a planet's orbit and its orbital period.
1
2
3
4
