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Comets: Celestial Snowballs

Comets: Celestial Snowballs

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Questions

Question 1 Multiple Choice (Single Answer)

What is a comet?

  1. A small, icy body that orbits the Sun.
  2. A large, rocky body that orbits the Sun.
  3. A ball of gas that orbits the Sun.
  4. A star that orbits the Sun.
Question 2 Multiple Choice (Single Answer)

What is the tail of a comet?

  1. A stream of gas and dust that trails behind the comet.
  2. A solid object that trails behind the comet.
  3. A cloud of gas and dust that surrounds the comet.
  4. A ring of gas and dust that surrounds the comet.
Question 3 Multiple Choice (Single Answer)

What is the nucleus of a comet?

  1. The solid, icy core of a comet.
  2. The tail of a comet.
  3. The cloud of gas and dust that surrounds a comet.
  4. The ring of gas and dust that surrounds a comet.
Question 4 Multiple Choice (Single Answer)

What is the coma of a comet?

  1. The cloud of gas and dust that surrounds the nucleus of a comet.
  2. The tail of a comet.
  3. The solid, icy core of a comet.
  4. The ring of gas and dust that surrounds a comet.
Question 5 Multiple Choice (Single Answer)

What is the orbit of a comet?

  1. An elliptical orbit around the Sun.
  2. A circular orbit around the Sun.
  3. A parabolic orbit around the Sun.
  4. A hyperbolic orbit around the Sun.
Question 6 Multiple Choice (Single Answer)

What is the period of a comet?

  1. The time it takes a comet to orbit the Sun.
  2. The time it takes a comet to travel from the Sun to its farthest point from the Sun.
  3. The time it takes a comet to travel from its farthest point from the Sun to the Sun.
  4. The time it takes a comet to complete one rotation on its axis.
Question 7 Multiple Choice (Single Answer)

What is the aphelion of a comet?

  1. The point in a comet's orbit that is farthest from the Sun.
  2. The point in a comet's orbit that is closest to the Sun.
  3. The point in a comet's orbit where the comet's velocity is zero.
  4. The point in a comet's orbit where the comet's acceleration is zero.
Question 8 Multiple Choice (Single Answer)

What is the perihelion of a comet?

  1. The point in a comet's orbit that is closest to the Sun.
  2. The point in a comet's orbit that is farthest from the Sun.
  3. The point in a comet's orbit where the comet's velocity is zero.
  4. The point in a comet's orbit where the comet's acceleration is zero.
Question 9 Multiple Choice (Single Answer)

What is the Great Comet of 1811?

  1. A comet that was visible in the night sky for over a year.
  2. A comet that had a tail that was over 100 million miles long.
  3. A comet that was so bright that it could be seen during the day.
  4. All of the above.
Question 10 Multiple Choice (Single Answer)

What is the Halley's Comet?

  1. A comet that orbits the Sun every 76 years.
  2. A comet that was first observed in 240 BC.
  3. A comet that has been observed by humans more than any other comet.
  4. All of the above.
Question 11 Multiple Choice (Single Answer)

What is the Shoemaker-Levy 9 comet?

  1. A comet that collided with Jupiter in 1994.
  2. A comet that was discovered by Eugene Shoemaker and Carolyn Shoemaker.
  3. A comet that was named after the Shoemaker-Levy family.
  4. All of the above.
Question 12 Multiple Choice (Single Answer)

What is the Deep Impact mission?

  1. A mission to send a spacecraft to impact a comet.
  2. A mission to send a spacecraft to fly by a comet.
  3. A mission to send a spacecraft to land on a comet.
  4. A mission to send a spacecraft to orbit a comet.
Question 13 Multiple Choice (Single Answer)

What is the Stardust mission?

  1. A mission to send a spacecraft to collect samples from a comet.
  2. A mission to send a spacecraft to fly by a comet.
  3. A mission to send a spacecraft to land on a comet.
  4. A mission to send a spacecraft to orbit a comet.
Question 14 Multiple Choice (Single Answer)

What is the Rosetta mission?

  1. A mission to send a spacecraft to orbit a comet.
  2. A mission to send a spacecraft to fly by a comet.
  3. A mission to send a spacecraft to land on a comet.
  4. A mission to send a spacecraft to impact a comet.
Question 15 Multiple Choice (Single Answer)

What is the New Horizons mission?

  1. A mission to send a spacecraft to Pluto.
  2. A mission to send a spacecraft to fly by a comet.
  3. A mission to send a spacecraft to land on a comet.
  4. A mission to send a spacecraft to orbit a comet.
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