Chapter 15 - The Solar System

Multiple Choice

Which of the following best describes the structure of the solar system?

• The planets and other objects orbit the sun, forming the solar system.

• The sun orbits around the planets in the solar system.

• The planets move randomly in space without any pattern.

• The solar system is made up only of the sun and Earth.

Open Ended

Why is the solar system important for us to study?

Multiple Select

Which of the following are considered objects that orbit the sun?

• Planets

• Dwarf planets

• Asteroids

• All of the above

Multiple Choice

Which of the following objects is the largest in the solar system?

• The Sun

• Earth

• Jupiter

• Pluto

Multiple Choice

Which objects in the solar system are found in a belt between Mars and Jupiter?

• Asteroids

• Comets

• Planets

• Meteors

Multiple Choice

What is the main difference between a comet and an asteroid in the solar system?

• Comets are made of dust, gas, and ice, while asteroids are rocky.

• Comets orbit the sun in a belt, while asteroids have oval-shaped orbits.

• Asteroids are larger than comets.

• Comets are found between Mars and Jupiter, while asteroids are not.

Multiple Choice

The average distance from the Earth to the Sun is called ___

• Astronomical Unit

• Light year

• Solar Flare

• a Mile

Multiple Select

Select all that are true about objects in the solar system based on the lesson.

• Asteroids are rocky objects found between Mars and Jupiter.

• Comets are made of dust, gas, and ice.

• The astronomical unit measures distances in the solar system.

• Planets do not move around the sun.

Multiple Choice

Which of the following statements about the motion of planets is correct?

• Planets revolve around the sun in an orbit.

• Planets remain stationary in the solar system.

• Planets move in straight lines away from the sun.

• Planets orbit the sun randomly.

Multiple Choice

What is the period of rotation of a planet?

• The time it takes for a planet to complete one orbit around the Sun

• The time it takes for a planet to rotate once on its axis

• The time it takes for a planet to move from one foci to another

• The time it takes for a planet to change its speed

Multiple Select

Which of the following are characteristics of the inner planets?

• They are closest to the Sun

• They are made of rock and metallic materials

• Their outer layers are in the solid state

• They are made mostly of gases

Multiple Choice

What materials make up Mercury’s core and mantle?

• Core: iron and nickel; Mantle: oxygen and silicon

• Core: oxygen and silicon; Mantle: iron and nickel

• Core: iron and silicon; Mantle: nickel and oxygen

• Core: nickel and silicon; Mantle: iron and oxygen

Multiple Choice

Which planet is known for having a day that is longer than its year?

• Venus

• Mercury

• Earth

• Mars

Open Ended

Explain how the greenhouse effect makes Venus the hottest planet in the solar system.