Early Astronomers Flashcards

Test (32 cards)

1
Q

Which of Kepler’s laws is the Harmonic law

A

3rd

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2
Q

Know Stonehenge; Big horn wheel, and Caracol and their locations

A

Astronomical alignment; Wiltshire, Enlgand. Medicine Wheel; Wyoming. Mayan cuture; Mexico

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3
Q

Kepler based his theories on the precise planetary observations of?

A

Tycho Brahe

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4
Q

Scientists today do not accept the Ptolemaic model because

A

Too old; Kepler and Tycho’s model heliocentric model was more accurate

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5
Q

Who was the ancient astronomer to formulate the zodiac

A

Ptolemy

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6
Q

The 1st proposed model of the cosmos was introduced by?

A

Pythagoras

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7
Q

Who kept astronomy alive during the dark ages?

A

Islamic Astronomers

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8
Q

Seven wanderers included

A

Sun, Moon, Mercury, Mars, Venus, Jupiter, and Saturn

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9
Q

The Ptolemaic and Copernican models are similar in what way?

A

Circular Orbits

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10
Q

Who built Uraniborg and observered a supernova in 1572?

A

Tycho Brahe

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11
Q

Did Newton replace Kepler with scientific laws?

A

No

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12
Q

When planets appear to move backward the term is

A

Retrograde motion

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13
Q

The Greek Philosopher that proposed that every different substance in the universe had its
own type of atom was (cheese, wood, & hair.

A

Democritus

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14
Q

The motivation for the Babylonian’s astronomy was?

A

Religion

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15
Q

What earlier work did Copernicus draw from?

A

Kepler, Ptolemy, Aristarchus

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16
Q

What is aphelion and perihelion?

A

Aphelion: Farthest point from the sun (Slowest in it’s orbit) Perihelion: Closest point to the sun (Fastest in it’s orbit)

17
Q

Who was the chief deity of the Babylonians?

18
Q

Name the 5 elements that are Aristotle’s?

A

Fire, air, water, earth & ether.

19
Q

The Italian astronomer who showed that two balls of different weights would still fall to earth
at the same rate was

A

Galilieo Galilei

20
Q

The heliocentric model was actually first proposed by

A

Nicolaus Copernicus

21
Q

When did Brahe and Kepler live?

A

Brahe (1546 - 1601) (1571 - 1630)

22
Q

The Babylonians kept careful records on clay tablets for _______ years

23
Q

Who was the influential Greek astronomer who taught Aristotle?

24
Q

Which ancient was considered to speak absolute truth?

25
The Greek astronomer who devised a complex geocentric model used for over a thousand years to predict planetary behavior was
Ptolemy
26
Law of Universal Gravitation was developed by
Issac Newton
27
The Greek astronomer that proposed that we are the 3rd rock from the Sun
Aristarchus
28
Who was Brahe’s assistant?
Kepler
29
The Ptolemaic model of the universe
Explained & Predicted the motions of the planets with deferents & epicycles.
30
Ptolemy said the orbits were ____________ and Kepler said the orbits were?
Ptolemy: Circular Kepler: Ellipses with the sun at one focus.
31
A planet is slowest in its orbit at aphelion (farthest point from the sun.) What is Perhilion?
Closest point from the sun. Fastest in it's orbit.
32
Galileo thought that sunspots proved that the Sun ?
Did not move, The earth revolved around the sun