Chapter 1 Flashcards

1
Q

What is Astronomy?

A

A way of viewing the Universe.
- Laws of nature are universal.

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2
Q

What is Science?

A

A way of figuring out the true nature of nature.

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3
Q

What is the Scientific Method?

A

Systematic way of explaining the world by developing and testing new ideas.
- uses logic and skepticism to make inferences about nature.

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4
Q

What is the Scientific Method order?

A

Observation - Hypothesis - Prediction - Test (no = change hypo) - yes - more prediction

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5
Q

What is the Scientific Theory?

A

tried and tasted descriptions of nature based on data.
- never 100% provable, stand time, explains what we see

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6
Q

Why is Pluto no longer a planet?

A

It has a different orbit and is a lot smaller than other planets/more similar to other dwarf planets.

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7
Q

What is an AU?

A

The distance from the sun to the earth (8 lm, 150 million miles, 93 million km)

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8
Q

What is a light year?

A

The distance light travels in 1 year (10 trillion km)
- Max Speed, 300,000 km/s

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9
Q

What is closest? (Milky Way, Andromeda, Pinwheel, Crebula)

A

Crebula, Milky Way, Andromeda Galaxy, Pinwheel galaxy

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