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Astronomy > Quiz 1 > Flashcards

Quiz 1 Flashcards

1
Q

In astronomical units, how far is the Earth from the sun?

A

1

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2
Q

A light year is

A

The distance light travels in a year

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3
Q

What do we call the imaginary sphere of heavenly objects that seems to center on the observer?

A

Celestial Sphere

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4
Q

Thirty arcminutes is how many degrees?

A

.5

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5
Q

What do we call the orbiting of one object around another?

A

revolution

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6
Q

We live in this galaxy

A

The milky way

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7
Q

Kepler’s first law states that

A

a planet’s path around the sun is an ellipse with varying speeds.

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8
Q

What do we call the spinning of an object about an axis that passes through it?

A

Rotation

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9
Q

If the moon was new last Saturday, what phase will it be this Saturday?

A

first quarter

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10
Q

Which of the following is the largest planet in the solar system?

A

Jupiter

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11
Q

The apparent shifting of nearby objects with respect to distant ones as the position of the observer changes is called

A

parallax

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12
Q

In what year did Galileo build his first telescope?

A

1609

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13
Q

What do we call an eclipse in which light from the Sun is blocked by the moon when the moon, inits new phase, passes directly between the sun and the earth?

A

Solar

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14
Q

The smallest planet in our solar system is

A

Mercury

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15
Q

Which of the following choices is not a criterion for a good scientific theory?

A

A theory should be agreed on by all knowledgeable scientists

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16
Q

According to a general theory of relativity, massive objects warp not only space around them but also time?

A

True

17
Q

If the mass of the Earth magically decreased with no change in its size, your weigh (as you stand on the surface) would

A

Decrease

18
Q

An area of the sky containing a pattern of stars named for a particular object, animal or person is called

A

constellation

19
Q

What do we call an eclipse which the moon passes into the shadow of the Earth

A

Lunar

20
Q

In his model of the solar system copernicus

A

Included epicycles because he assumed that the planets move at constant speeds

21
Q

Who created the general theory of relativity

A

Einstein

22
Q

What do we call the gravitational force between an object and the planetary/stellar body where the object is located?

A

Weight

23
Q

The official name for the constellation that many people call the Big Dipper is

A

Ursa Major

24
Q

According to Newton what not only makes objects fall to Earth but keeps the moon in orbit around the Earth and keeps the planets in orbit around the Sun

A

Gravity

25
Q

How many moons does the Earth have?

A

1

Astronomy (6 decks)

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