Study Guide 09/08/14 Flashcards

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1
Q

Which of the following scientists thought the Earth was at the center of the universe?

A

Ptolemy

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2
Q

What blocks most types of electromagnetic radiation?

A

the Earth’s atmosphere

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3
Q

What did red shift tell Hubble about the universe?

A

The universe if getting larger

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4
Q

Why do scientists put telescopes in space?

A

To avoid interference from Earth’s atmosphere.

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5
Q

How long does Earth take to orbit once around the sun?

A

A year

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6
Q

How long does Earth take to rotate once on its axis?

A

A day

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7
Q

About how long does the moon take to orbit Earth?

A

A month

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8
Q

Which of the following is not found on the electromagnetic spectrum?

A

Black hole

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9
Q

Uses lenses to gather and focus light

A

refracting telescope

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10
Q

uses mirrors to gather and focus light

A

reflecting telescope

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11
Q

all the wavelengths of electromagnetic radiation

A

electromagnetic spectrum

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12
Q

the angle between an object and the horizon

A

altitude

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13
Q

an imaginary sphere that surrounds the Earth is the?

A

Celestial sphere

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14
Q

the line where the sky and earth appear to meet is the?

A

horizon

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15
Q

An imaginary point directly above an observer’s head is a ?

A

zenith

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16
Q

a region of the sky with distinct star patterns is a ?

A

Constellation