The Universe and Objects Found in Space Flashcards

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  • Look through all the flashcards to see what's on both sides.
  • Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

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  • Check the answer and make a note of any cards you find challenging and need to go over more.

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  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
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Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What does the Universe include?

The Universe includes all of space, as well as all the matter and energy within it, such as stars, planets, satellites and billions of galaxies.

What is a galaxy?

A galaxy is a collection of gas, dust and stars, all held together by gravity.

Our galaxy is called the Milky Way, and there are billions of other galaxies in the Universe.

What is a light-year?

A light-year is a unit of astronomical distance that describes the distance light travels in one year.

What is a comet?

A comet is a ball of dust and ice that orbits the Sun in a highly elliptical orbit.

What are meteors?

Meteors are balls of rock and dust that typically burn as they enter the Earth’s atmosphere, seen as shooting stars. If they reach the Earth’s surface, they are called meteorites.

What are satellites?

Satellites are objects that orbit planets. They can be natural, like the Moon, or artificial, like the International Space Station.

Revision Notes
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