Astronomy Unit 2 Post Test 2

The movement of Earth around the sun is called

• Rotation

• Revolution

• Orbit

• Tide

Answer explanation

The movement of Earth around the sun is called revolution. This term specifically refers to the orbital motion of one body around another, distinguishing it from rotation, which is the spinning of an object on its axis.

Tags

NGSS.HS-ESS1-4

Which of the following lists the planets in the correct order?

• Mars, Venus, Earth, Mercury, Saturn, Jupiter, Uranus, Neptune

• Earth, Venus, Mars, Jupiter, Neptune, Mercury, Saturn Uranus

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

• Jupiter, Venus, Mars, Mercury, Neptune, Uranus, Saturn, Earth

Answer explanation

The correct order of the planets from the Sun is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. This matches the choice: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

The spinning of an object on its axis is called (a)  

• Orbit

• Rotation

• Revolution

• Tide

Answer explanation

The spinning of an object on its axis is known as rotation. This term specifically describes the movement around an internal axis, distinguishing it from revolution, which refers to orbiting around an external point.

Almost Earth’s twin in size and mass, this planet has a very thick atmosphere

• Venus

• Mars

• Mercury

• Neptune

Answer explanation

Venus is often called Earth's twin due to its similar size and mass. However, it has a very thick atmosphere composed mainly of carbon dioxide, leading to a strong greenhouse effect, making it the hottest planet in our solar system.

Which planet’s largest moon is Titan?

• Saturn

• Uranus

• Jupiter

• Neptune

Answer explanation

Titan is the largest moon of Saturn, making it the correct answer. Other options like Uranus, Jupiter, and Neptune have their own moons, but none have Titan.

Who is credited with proposing the sun-centered Universe?

• Galileo

• Ptolemy

• Copernicus

• Kepler

Which direction do the planets rotate the sun.

• Counterclockwise
• Clockwise

Tags

NGSS.HS-ESS1-4

The planets in order starting from the Sun are Mercury, Venus ​ (a)   , Mars​ Jupiter, Saturn​ (b)   ​ (c)  

• Earth
• Uranus
• Neptune
• Pluto
• Mercury
• Mars

Tags

NGSS.HS-ESS1-4