Astronomy Review Question Preview (ID: 43824)


Basic Astronomy Review Questions.[print questions]

In the 1600’s Copernicus and Galileo believed that the earth and other planets orbited the sun. Why were their ideas not accepted at first?
a) They had no good research to support their claims.
b) Their books were not published until after their deaths.
c) Their claims could not be verified by the instruments of the time.
d) Their claims contradicted the most popular ideas at that time.

Which of the following is an example of technology?
a) the Earth’s gravitational constant
b) chemical composition of Moon rocks
c) the moon's orbit
d) space probe photographs of distant planets

Why was the discovery of moons orbiting Jupiter a significant event?
a) it made Galileo a popular astronomer.
b) we discovered geological activity on another world.
c) It proved that astronomy was a useful science.
d) It proved that not everything revolved around the earth.

What two atoms make up the majority of the mass in our universe, and perform nuclear fusion in our sun?
a) Hydrogen and Carbon
b) Neon and Helium
c) Hydrogen and Helium
d) Iron and Carbon

Why does the Moon only have 1/6 of the Earth's gravity?
a) it is so far away from the earth
b) it has no atmosphere
c) it is not as massive as Earth
d) it is made of basalt

What causes the earth's seasons?
a) the distance to the sun
b) the tilt of the earth's axis
c) the elliptical orbit of the earth
d) the sun is brighter in the summer

Which two factors combine together to cause an object to remain in a stable orbit?
a) mass and magnetism
b) fusion and fission
c) heat and electricity
d) gravity and inertia

Why does the earth experience day and night?
a) the earth rotates on its axis
b) the earth revolves around the sun
c) the moon revolves around the earth
d) the earth is tilted on its axis

We know that Mercury is the closest planet to the sun. Why then is Venus hotter than Mercury?
a) Mercury's clouds reflect heat.
b) Mercury is too small to catch heat.
c) Mercury is in Venus' shadow.
d) Mercury has no atmosphere.

The Earth, the moon, Venus and Mars are all made of similar elements. What factors contribute to the existence of life on Earth while the other neighboring planets and moons are lifeless?
a) The tilt of the axis is different from that of the Earth on other planets and moons.
b) Liquid water and a protective atmosphere are found on Earth and not on the others.
c) Earth has active tectonic plates that continue to create and destroy mountains and basins.
d) The laws governing the behavior of atoms and molecules is different here than elsewhere.

Why is it theoretically possible to fly through the upper layers of Jupiter and Saturn?
a) they are not solid
b) they have no gravity
c) they are fusing inside
d) internal pressures are very low

Which of the following planets is about the same size of our Earth, and has a thick atmosphere which makes it very hot?
a) Jupiter
b) Mars
c) Pluto
d) Venus

Mars and Earth receive about the same amount of solar radiation. Why than does the Earth have a perfect temperature range for life, but Mars does not?
a) Mars is too cold because its atmosphere is too thin to hold in heat.
b) Earth has a hot interior core, and heats up our planet from the inside.
c) The red surface of Mars absorbs too much solar radiation and is too hot.
d) The Earth is tilted on its axes and gives us all four seasons.

Which of the following is the temperature of the Sun’s core?
a) 2,000,000 degrees Centigrade
b) 15,000,000 degrees Centigrade
c) 2,000,000 degrees Fahrenheit
d) 15,000,000 degrees Fahrenheit

Compared to the outer planets…
a) The Terrestrial planets are more likely to be composed of gas and ice.
b) The Inner planets have greater mass and warmer temperatures.
c) The Terrestrial planets have thinner atmospheres.
d) The Inner planets have many more moons.

Venus
a) Is covered in Iron Oxide
b) Is 10 AU from the Sun
c) Has retrograde rotation
d) Has 79+ moons

Mars
a) Is covered in Iron Oxide
b) Is 10 AU from the Sun
c) Has retrograde rotation
d) Has 79+ moons

Jupiter
a) Is covered in Iron Oxide
b) Is 10 AU from the Sun
c) Has retrograde rotation
d) Has 79+ moons

What is one astronomical unit?
a) 150,000,000 km
b) 93,000,000 miles
c) 2.3 light years
d) More than one of these is a correct answer

Which is false about Pluto?
a) Pluto has a double rotation with Charon, its moon.
b) Pluto crosses Neptune’s orbit for 20 years out of 248.
c) Pluto is made of mostly ice and methane gas.
d) Pluto is about 1/5th the diameter of Earth.

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