Astro club quizziz

An asteroid orbiting the Sun has a perihelion distance of 1 AU. At aphelion, it is at 2 AU. What  is the ratio of its speed at perihelion to aphelion. (10 minutes to do so don't simply choose) Hint: use angular momentum

• 2

• 1/2

• 1

• 3

 If you apply a force of 3 Newtons to a mass of 2 kg, it results in an acceleration of 1.5 m/sec2.  What acceleration would result if you applied a force of 12 Newtons to a mass of 4 kg? 

• 1

• 2

• 3

• 4

Which of the following is NOT a stage in stellar formation?

• Planetary nebula

• protostar

• Main sequence star

• Interstellar cloud

Smallest planet in the solar system?

• Mars

• Mercury

• Earth

• Venus

Biggest object in the Kuiper belt?

• Makemake
• Haumea
• Eris
• Pluto

What is newtons first law?

• Every action has an equal, opposite reaction

• Everything continues in a state of rest or uniform motion unless some other force acts on it.

• F=ma

• Every particle of matter in the universe attracts every

  other particle with a force directly proportional to the

  product of masses and inversely proportional to the

  squared distance between their centers.

Which of these are NOT terrestrial planets?

• Neptune

• Mercury

• Venus

• Jupiter

Where is the asteroid belt situated in?

• Between the orbits of Mars and Jupiter
• Beyond the orbit of Neptune
• Inside the orbit of Saturn
• Between the orbits of Earth and Venus

What do we mean by eccentricity when referring to ellipses?

• Measure of roundness of an ellipse
• How flattened the ellipse is

• Angle of inclination of an ellipse
• Distance between foci of an ellipse

What constellation is this?

• Aquarius

• Orion

• Ursa major

• Cancer