Topic 11: Lesson 1 Quiz

What object is in the center of the heliocentric model?

• Moon

• Earth

• Sun

• a black hole

Oliver looks up at the sky everyday over Christmas break. What direction would the stars appear to move?

• West to East

• East to West

• North to South

• South to North

At a school trip to the observatory, Alex looked through a telescope and observed an object that looked like a white ball with a long tail approaching the sun. What object did he see?

• comet

• asteroid

• planet

• moon

The sun is a ________ that has eight planets orbiting around it. Several planets have one or more moons that orbit around them. A body that orbits a planet is called a ________________?

• star / comet

• constellation / comet

• star / satellite

• satellite / constellation

Constellations are the name for the pattern or group of stars that people imagined looked like figures, objects, or animals. How many are there?

• 77

• 50

• Millions

• 88

Stars are primarily composed of burning hydrogen and __?

• Helium

• Silica

• Methane

• Argon

True or false? Everything in our universe orbits something, even our stars.

• True

• False

Which of the following is not part of the defining qualities that makes a planet a planet?

• Must occupy its own orbit

• Must orbit the sun

• Must have at least one natural satellite (a moon)

• Must be large enough to be rounded by its own gravity

The seasonal changes that make some constellations visible /invisible are because of Earths ___ in relation to the sun.

• Rotation or spin

• Revolution or Orbit

• Size or diameter

• Magnetism

In 1610, a famous scientist named __ discovered moons orbiting Jupiter. This helped him prove Earth was not the center of the solar system. The moons revolved around Jupiter, not Earth.

• Einstein

• Aristotle

• Ptolemy

• Galileo