Astronomy Test #3

Could you distinguish between Earth and Sun-centered solar system models by observing Venus with a telescope?

Why are the planets closest to the Sun more dense than those farther from the Sun?

What is the solar wind?

Where do asteroids come from?

If Earth was more reflective (had a higher albedo), what would happen to its temperature?

What are the main constituents of Earth's atmosphere?

Which of the following is not a characteristic of jovian planets?

How did Ptolemy's model differ from Aristotle's model of the universe?

Why are smaller terrestrial bodies such as Mercury or the Moon "geologically dead"?

At any given time, how many high tides are there on Earth?

What are Some of the features of Auroras?

Where do comets come from?

What is the main reason that Venus is warmer than Earth?

Which of the following planets has the most oxygen in its atmosphere?

What are some of the features of Primitive meteorites?

Jupiter does not have a large metal core like Earth. How can it have a magnetic field?

Why do the lunar highlands have many more craters than the lunar maria?

Why do we think Mars was once warmer and wetter?

How does Io get heated by Jupiter?

Asteroids have the following features

Which of the following planets has the most dense atmosphere

What age does radiometric dating give for Moon rocks and meteorites?

What is the structure of Jupiter like?

Which of the following is not one of Kepler's laws of planetary motion?

Why do we think that the solar system formed from a rotating, collapsing gas cloud that ended up as a disk orbiting the Sun?

What do we think the composition of the solar nebula was?

Which bodies show evidence of a substantial atmosphere?

What is the main source of the original atmospheres of the terrestrial planets?

What are the most common elements in the atmospheres of the jovian planets?

Meteorites come from where?

Suppose a comet had a very eccentric orbit that brought it quite close to the Sun at closest approach (perihelion) and beyond Mars when furthest from the Sun (aphelion), but with an average distance of 1 AU. How long would it take to complete an orbit and where would it spend most of its time?

If there was no greenhouse effect, how would Earth be different?

What is the shape of a planets orbit

What are terrae

What happens with the earth and the moons tidal waves

What are some other ways that solar wind can make its presence known

What is the ion tail in a comet

What is the scale of the outer regions of the solar system?

Where in the Milky Way are we located

How many exoplanets have we found thus far

What is the composition of the sun

What is the direction of rotation of the planets

What is the plane that all planets orbit along called and are all orbits the same?

What is the approximate tilt of the planets axis

What are the similarities between Venus and Mars

How long is the rotation period of Jupiter?

What do the colours on Jupiters surface represent?

How big is Jupiter's red spot?

What determines a shape of an object

What are the characteristics of Saturn's moon: Titan

How can we determine the chemical composition of a planet

What is the density of water on earth in comparison to other planets mass

How dense is the asteroid belt

Where does solar and cosmic radiation come from

Where on earth are the auroras located and what are the aurora areas called

What is the key to Ptolemy's model: the epicycle and the deferent

What are inferior planets and elongation

What are superior planets and opposition

What is an ascending node?

What is a descending node?

What is the sequence of events from the Big Bang?

What happens at hotter temperatures

What happens at colder temperatures

What does our galaxy contain

What does the interstellar medium contain

What are the characteristics of the giant molecular clouds

Case study: Bok Nebula "Barnard 86"

Where does most of the mass in our solar system lie

What was the sequence of events in the formation of the solar system

Why are there different types of planets

What are the rock forming substances

What are the molecular compounds like water

What are the different temperature gradients in the different zones of the solar nebula

What is the planet building system

What is the consolidation stage

What is the cleanup stage

What is earth's internal structure

What is mercury's internal structure

What is oblateness

What does oblateness depend on

What is the system of heating of the planets for rocky bodies

What is the internal structure of Jupiter

What is the internal structure of Uranus and Neptune

What are the moons physical characteristics

What are Maria's

What are the types of rocks found on the surface of the moon

What is the composition of the moon

What is the structure of the moon

What is the moon doing annually

What does the height of tides depend on

What are planetary surface temperatures due to

What is albedo

What happens if an object absorbs energy at a higher rate that it can radiate away

What happens if sunlight reaches a planet with no atmosphere vs with an atmosphere

What are the differences between terrestrial and Jovian planetary atmospheres

What are the levels in the earth's atmosphere?

What are the levels in venus' atmosphere

What are the planetary atmospheres of Uranus and Neptune

What is the source of solar wind and what are its characteristics

What are the characteristics of cosmic rays

What are the characteristics of earth's magnetic shield

What are the characteristics of Jupiters magnetosphere

What happens with auroras in terms of planets without an atmosphere e.g. Venus

What happens with auroras on Mercury and Mars

What are comets

What is the coma of a comet

What is the hydrogen cloud

What is the dust tail in a comet

What forms a meteor shower

What is a meteor/oid/ite

What are the three categories of meteorites

What are the characteristics of stony meteorites

What are the characteristics of a stony iron meteorite

What are the characteristics of iron meteorites

What are the characteristics of large asteroids