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Early Astronomy
Sunspots were
Retrograde motion
Early Astronomy
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1
Retrograde motion
predict the movement of planets
theory that planets move slowly
opposite motion of stars and planets
westward drift of planets
2
Sunspots were
able to help discover the rotation of the sun
present to the naked eye as seen through a shaded telescope
created by large explosions and fluctuated on sun's surface
important to the atmosphere of earth
3
The earth is part of the
Alexandria Galaxy
Snickers Galaxy
Ptolemaic Galaxy
Milky Way Galaxy
4
Kepler's first law predicted
the earth rotated
planetary orbits are ellipitacal
sun was the center of the solar system
Mars position in the sky could be calculated mathmatically
5
Geocentric model
earth is motionless
planets are random
sun is center of solar system
earth is center of solar system
6
Without the influence of gravity
the earth would move off in a straight line
the mass of an object would not attract other masses
pull remains the same regardless of the matter of an object
the earth would fall into the sun
7
Kepler discovered ______ laws of planetary motion
one
three
four
two
8
Kepler's third law is
orbital period squared = average solar distance
AU = distance of earth to the sun
AU = 150 killometers
square of the distance to the sun = orbital period
9
The golden age of astronomy was centered in
Greece 150 BC to 600 AD
Italy during Galileo's lifetime
Greece 600 BC to 150 AD
Roman Empire 600 BC to 150 AD
10
As mass increases for an object
then its gravitational pull increases
the less dense the object
gravitation force decreases
then its weight remains the same
11
Using a telescope, Galileo proved
planets moved in an ellipse
the earth was the center of the solar system
planets were earth-like as opposed to points of light
completed the discovery of all the planets of solar system
12
The proof that the world is round came about because
shadow of earth is curved on the moon
Galileo discovered it in his measurements of the planets
an instrument measured curvature called a medallion
the horizon of the earth appears curved.
13
Ancient Greeks discovered the size of the earth based on (pick the best)
measurement of the circumference and use of Pi
use of earth's night and day cycle to formulate the distance
use of trigonometry and geometry
orientation of the rays of sun in two ancient Greek cities
14
Galileo showed
that the moon had lakes and bodies of water
the sun was the largest object in the solar system
planets performed retrograde orbits twice per year
that the moon had mountains
15
Gravitational force
is an form of inertia
decreases with distance
occurs on planets only
increases with distance
16
According to Sheldon - the meaning of physics is
study of geothermal energy
study of physical phenomenon
study of natural things
study of stars, planets and celestial objects
17
Sir Isaac Newton differed from previous scientist because
he believed in centripetal force
he believed in inertia, no force was needed to move planets
he believed that a force was needed to propel planets
he believed in atomic force driving planet's orbits
18
Heliocentric model
sun is center of solar system
planets are random
earth is center of solar system
planets are stationary
19
Kepler's second law stated
planets move more slowly near the sun
distance from sun is inverse to speed of planet's orbit
planets travel rapidly near sun, slowly away from sun
planet's orbits are concentric
20
Galileo lived
in Italy during the Renaissance
in ancient Greece
in ancient Rome
in France during the Renaissance
