Questions For Test Flashcards

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1
Q

Why do planets not move in a straight line

A

The suns gravity pulls the planeys in their orbits and move faster the closer they are too the sun

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2
Q

Contrast the size and makeup of the inner and outer planets

A

The inner is smaller in size, rocky surfaces, have 2 or less to no moon, they orbit sun more quickly. The outer is greater in size, gaseous surfaces, have many moons, farther from Sun and orbits slower

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3
Q

Contrast meteorites, meteors, and metorites and explain how they relate to impact craters

A

Meteoroids are small rocky particles in space. Meteors when they streak through the atmoshpere. Meteorites when meteors strike Earths surface. Impact craters are round depression formed on planets or moons surface formed from meteorites striking surface

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4
Q

Determine how Earths atmosphere is different from those of the inner planets

A

Earth is able to support life becuase its atmosphere is made out of water vapor and other gases; oxygen and nitrogen. Our atmosphere traps in the right amount of heat. Its not becuase of our atmosphere and have water

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5
Q

Why do u think pluto is a planet or dwarf planet

A

It could be a planet becuase it spherical, orbits the sun

Dwarf planet is smaller in size; other objects cross its path

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6
Q

Describe the structure of the outer planets

A

They have solid core sourended by liquid the armosphere is made out of hydrogen and helium. Planest orbit is epliptical.

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7
Q

Au/ astronomical unit

A

Distance from Earth to Sun about 150 million km planet

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8
Q

Aestroid

A

Small, rocky, icy body, orbits sun in asteroid belt, located b/w Mars and Jupiter

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9
Q

Comet

A

Small, rocky, icybody that orbits the sun in an elliptical path

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