Podcast
Questions and Answers
What holds a galaxy together?
What holds a galaxy together?
- Magnetic forces
- Electric forces
- Gravity (correct)
- Black holes
Where are most asteroids located in our solar system?
Where are most asteroids located in our solar system?
- Beyond Neptune
- Orbiting Earth
- Near the Sun
- In the asteroid belt between Mars and Jupiter (correct)
What happens to a comet when it approaches the Sun?
What happens to a comet when it approaches the Sun?
- It disintegrates completely
- It releases gas and dust, forming a tail (correct)
- It turns into a planet
- It becomes a nebula
Which of the following statements about galaxies is true?
Which of the following statements about galaxies is true?
What are asteroids primarily composed of?
What are asteroids primarily composed of?
Flashcards
What is a galaxy?
What is a galaxy?
A huge collection of billions of solar systems held together by gravity.
What are asteroids?
What are asteroids?
Small, rocky bodies orbiting the Sun, likely leftover from planet formation.
What is a comet?
What is a comet?
A dusty snowball orbiting the Sun that releases gas and dust when close to the Sun, forming a tail.
What is the Milky Way?
What is the Milky Way?
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What force holds galaxies together?
What force holds galaxies together?
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Study Notes
Space
- A galaxy is a huge collection of billions of stars and solar systems, all held together by gravity
- Our solar system includes the Sun and everything that orbits it
- Asteroids are small, rocky objects orbiting the Sun
- Most asteroids are located in the asteroid belt, between Mars and Jupiter
- Comets are icy bodies that orbit the Sun
- When a comet gets close to the Sun, it releases gas and dust, creating a tail
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