Physics - Astronomy Flashcards

(10 cards)

1
Q

Elliptical

A

Highly oval

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2
Q

Name the order that the planets are in starting from the planet closest to the sun

A

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

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3
Q

Dwarf planets

A

planets that are not big enough to be considered an actual planet

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4
Q

Comets

A

lumps of ice and dust - sped most of their time in the outskirts of the solar system, but spend a short period of their time close to the sun, where they travel much faster

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5
Q

Universe

A

A collection of billions of Galaxies

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6
Q

Galaxy

A

A collection of billions of stars

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7
Q

Moons

A

Orbit planets near-circles, what we call natural satellites

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8
Q

Asteroids

A

lumps of rock and metal that orbit the sun. Most of them exist in a “belt” between Mars and Jupiter, known as the Asteroid belt

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9
Q

geostationary satellites

A

Ones that orbit sun at the same rate as the Earth’s spin - ideal for communications

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10
Q

How is gravitational pull increased?

A
  1. A greater mass
  2. Being closer
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