Other Objects in the Solar System Flashcards

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1
Q

meaning of the name “asteroid”?

A

comes from the Greek word meaning starlike

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2
Q

where are asteroids found?

A

in between Mars and Jupiter and in the asteroid belt

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3
Q

how are asteroids formed?

A

fragments from large large collisions and dust particles that formed together

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4
Q

shape and composition of asteroids

A

rocky, metallic objects

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5
Q

definition of a meteor

A

smaller chunks of solid matter that burn up in our atmosphere due to friction

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6
Q

meaning of the name meteor

A

thing high up in the sky

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7
Q

alternate name for a meteor

A

shooting stars

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8
Q

origins of meteor

A

most meteors are pieces of other large bodies such as moons, comets, asteroids and planets that broke away

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9
Q

three most common meteor showers

A

perseids, geminds, leonids

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10
Q

meteorite definition

A

a larger meteor that actually reaches Earth’s surface

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11
Q

meteorite example

A

allende meteorite

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12
Q

crater example

A

barringer crater

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13
Q

definition of comet

A

chunks of frozen matter that orbit the Sun in a very long elliptical path

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14
Q

what type of path does a comet have

A

elliptical path

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15
Q

tail formation of a comet

A

when in approaches the Sun, the comet is warmed and this causes the frozen material to become a gas

the solar wind and radiation pressure cause the formation of the tail

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16
Q

which direction does the tail of a comet point?

A

away from the Sun

17
Q

why is Halley’s comet named after Edmund Halley?

A

he was the first to predict when it would appear

18
Q

orbital period of Halley’s comet

A

76 years

19
Q

last visit of Halley’s comet

A

1986

20
Q

next visit of Halley’s comet

A

2061

21
Q

meteors are quite common. why do you think that few meteorites have been found?

A

many meteors burn up in the atmosphere, and don’t actually hit the Earth.

22
Q

why does a comet’s tail always point away from the Sun?

A

solar winds push the gases from the comet away from the Sun

23
Q

astronomers believe huge comets may orbit the Sun, but there is no record of anyone ever seeing them. why?

A

long orbital periods

not close enough to to Earth or Sun