Solar System and Sun's Core Quiz

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Questions and Answers

What is the primary process occurring in the Sun's core that produces energy?

  • Gravitational contraction
  • Chemical reactions
  • Nuclear fission
  • Nuclear fusion (correct)

Which two gases primarily make up the Sun?

  • Carbon dioxide and argon
  • Methane and ammonia
  • Oxygen and nitrogen
  • Hydrogen and helium (correct)

Which of the following is NOT a characteristic of objects in the Solar System?

  • Distance from the Sun
  • Composition and surface temperature
  • Number of moons
  • Presence of life (correct)

What region of the Solar System contains icy objects beyond Neptune?

<p>Oort Cloud (A), Kuiper Belt (B)</p> Signup and view all the answers

How many planets orbit the Sun in our Solar System?

<p>Eight (A)</p> Signup and view all the answers

What is the primary process through which the Sun generates energy?

<p>Nuclear fusion (A)</p> Signup and view all the answers

What is the approximate temperature at the core of the Sun?

<p>15 million °C (C)</p> Signup and view all the answers

Which of the following accurately describes a characteristic of objects in the solar system?

<p>Objects vary in size and distance from the Sun. (C)</p> Signup and view all the answers

What is the primary gas that makes up the Sun?

<p>Hydrogen (B)</p> Signup and view all the answers

What causes the variance in the time it takes for different objects to orbit the Sun?

<p>The object's distance from the Sun and gravitational forces. (B)</p> Signup and view all the answers

Flashcards

What is the Sun?

The Sun is a massive star, like others, that generates heat and light continuously. It's primarily composed of hydrogen gas.

How does the Sun produce energy?

The Sun's energy is created by nuclear reactions within its core, where hydrogen transforms into helium.

What are the temperatures of the Sun's surface and core?

The Sun's surface temperature is around 5500°C, while its core reaches a staggering 15 million °C.

What objects exist in our solar system?

Our solar system includes planets, dwarf planets, asteroids, comets, and objects in the Kuiper Belt/Oort Cloud, all orbiting the Sun.

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What determines the time it takes for objects to orbit the Sun?

The time an object takes to orbit the Sun varies based on its distance and the Sun's gravitational pull.

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What is nuclear fusion?

Nuclear fusion is a process where atoms combine to release energy in the form of heat and light.

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What are the planets in our Solar System?

The eight planets in our Solar System are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

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What else orbits the Sun besides planets?

Asteroids, comets, and other smaller objects also orbit the Sun, forming the Kuiper Belt and Oort Cloud.

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How do objects in the Solar System differ?

Each object in the Solar System has unique characteristics like size, distance from the Sun, number of moons, and composition.

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