Q4T4 Part 1 Question Preview (ID: 24811)
Space Test.
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Great distances in space are measured in
a) kilometers.
b) light years.
c) megameters.
d) astronomical units.
An object has passed near Earth many times on a cycle that repeats about every 75 years. Which statement best describes this object?
a) It is an asteroid since it spends part of its time between Mars and Jupiter.
b) It is considered part of a dwarf planet subsystem with Pluto and Ceres.
c) It is classified as a small moon of Earth due to its frequent return orbit.
d) It is one of several comets in the solar system that orbits that Sun.
What type of galaxy is the Milky Way?
a) spiral
b) elliptical
c) irregular
d) oval
Structures in the universe are grouped into large systems, each of which are made up of smaller systems. Which of the following is the largest system of which Earth is only a very small part?
a) Jovian planets
b) Halley’s comet
c) Milky Way galaxy
d) Orion’s belt
A student observes a glowing band across the night sky. This glowing band is most likely
a) orbiting planets in the solar system.
b) a partial view of the Milky Way galaxy.
c) an asteroid orbiting the Sun.
d) light from stars in a distant galaxy.
Astronomers measure distances using very large units called light years. Which distance between celestial objects would most likely be measured in light years?
a) distance between the Sun and Earth
b) distance between the Moon and Earth
c) distance between two stars in the same galaxy
d) distance between two planets in the same solar system
In 2004 the Hubble space telescope captured images of distant star clusters, each containing about a million stars. These star clusters were most likely part of which structure?
a) black hole
b) galaxy
c) nebula
d) solar system
Which of these objects is the largest?
a) Earth
b) Hailey's Comet
c) Milky Way Galaxy
d) Sun
Scientists once believed that the structure of the universe had changed very little. Which statement best supports the theory that the universe is constantly changing?
a) Earth and other planets move around the Sun.
b) The average distance between galaxies is increasing
c) Other planets in the solar system have more moons than Earth
d) More galaxies other than the Milky Way have been discovered
Phobos is one of two large objects that orbit the planet Mars. Because Phobos orbits Mars, Phobos should be classified as which type of body?
a) asteriod
b) moon
c) comet
d) meteoroid
Which gas present in the atmosphere of Mars is the primary gas found in the atmosphere of Earth?
a) carbond dioxide
b) nirogen
c) argone
d) methane
12. How many times does the Moon rotate on its axis during a lunar month?
a) one
b) two
c) three
d) four
The Moon is in orbit around Earth. What keeps the Moon from changing its orbit?
a) friction
b) gravity
c) weight
d) rotation
The planets in the Solar System revolve around the Sun because the Sun is
a) made of hydrogen and helium.
b) older than other objects in the Solar System.
c) the source of most heat and light energy.
d) the strongest source of gravity in the Solar System.
Which of the following allows the planets to stay in orbit?
a) the Moon’s gravity
b) the Sun’s gravity
c) magnetism
d) rotation
A “shooting star” is
a) comet
b) meteor
c) asteriod
d) small star
Which of these locations in the solar system contains the most asteroids?
a) the surface of the Sun
b) the ring system of Saturn
c) between Mars and Jupiter
d) between Mercury and Venus
Over the past few centuries, comets have occasionally been observed in the sky. What is one difference between comets and the Moon?
a) The Moon has a core of ice, while comet cores are solid rock.
b) Comets have large orbits around the Sun, while the Moon orbits Earth.
c) The Moon reflects light from the Sun, while comets generate their own light.
d) Comets collect debris as they travel in space, while the Moon gives off meteoroids.
Which of these best describes when a lunar eclipse will occur?
a) when Earth is between the Moon and the Sun
b) when the Moon passes between Earth and the Sun
c) when the Sun is between Earth and the Moon
d) when Earth is at a 90° angle to the Moon and the Sun
Which moon phase occurs approximately 14 days after a full moon
a) waxing gibbous
b) waning crescent
c) first quarter
d) new moon
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