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Science > Celestial Bodys > Flashcards

Celestial Bodys Flashcards

1
Q

What is the universe ?

A

Everything that exists

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2
Q

What is astronomy ?

A

The science that deals with the universe beyond the earth’s atmosphere

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3
Q

What is a celestial body?

A

A naturally made object outside the earth’s atmosphere

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4
Q

What is a satellite ?

A

A satellite is an object orbiting a celestial body of large mass.

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5
Q

What is a star ?

A

Celestial body that generates its own light and heat and consists of a mass of gas held together by its own gravity

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6
Q

What is a planet ?

A

A planet is a celestial body that is in orbit around a star

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7
Q

What must planet have/do to be a planet ?

A

Must orbit a star
must have enough mass to forms its own shape
have cleared the region around its orbit of other celestial bodies

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8
Q

What is the moon ?

A

A natural satellite of a planet

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9
Q

What is an asteroid ?

A

A small rocky body in space

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10
Q

What a comet ?

A

A dusty snowball that orbits a star

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11
Q

What is a meteor ?

A

A solid object from outer space that enters the earth’s atmosphere

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12
Q

What is the solar system ?

A

A solar system is group of planets , comets , asteroids , and other celestial bodies that re in orbit around a star.

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13
Q

What are the model of the universe ?

A

Geocentric , heliocentric

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14
Q

What is the new and right model of the universe ?

A

Heliocentric

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15
Q

What is the old and wrong model of the universe ?

A

Geocentric

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16
Q

What is a galaxy ?

A

A large system of stars held together by their own gravity e.g.)the Milky Way

17
Q

What are the 6 celestial bodies ?

A

Star , moon , planets , comet , meteor , asteroid

18
Q

Name all the planets and the rhyme

A

My Very Educated Mother Just Served Us Noodles
Mercury, venus , earth , mars , Jupiter , Saturn , Uranus , Neptune

19
Q

Where are asteroids found?

A

In the asteroid belt between mars and Jupiter

20
Q

Where are comets found ?

A

Comets are found in the Kuiper Belt which is away from the solar system

21
Q

What is the Big Bang formation ?

A

Before the Big Bang , 14 billion years ago, the entire universe was smaller than a pinheaded. It was extremely hot and dense. It then exploded creating time , space and matter. The universe expanded.

22
Q

What evidence is there to back up the Big Bang theory ?

A

An energy called ‘cosmic background radiation’ was discovered.
Edwin Hubble and vesto slipher discovered that the universe is expanding

Science (8 decks)

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