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WorksheetsAstronomy Unit 1 Review
Total questions: 49
Worksheet time: 28mins
.000457
If the exponent is a negative number...
Eratosthenes used geometry and the distance between 2 cities to calculate
an astronomical unit.
a light year.
the circumference of the Earth.
the distance between the Sun and the Earth.
What is a light year?
It is the LUMINOSITY of the Sun compared to other stars.
Like a regular year, only with less calories.
It is the DISTANCE light travels in one year.
It is the TIME it takes light from the Sun to get to the Earth.
What are constellations?
groups of galaxies gravitationally bound and close together in the sky
apparent groupings of stars and planets visible on a given evening
ancient story boards, useless to modern astronomers
groups of stars gravitationally bound and appearing close together in the sky
groups of stars making an apparent pattern in the celestial sphere
Two sides of the triangle are each about 20 degrees of the sky. This can be imagined by holding your hands up to the sky like this:
Two fists side by side
One fist length
A "Y" symbol (from sign language)
Three finger widths
Hook 'em horns symbol
Convert this number into scientific notation: 950,000
9.5 x 105
9.5 x 10-9
9.5 x 102
None of the above
Which number is the least in value
5.0 x 10-9
5.0 x 10-4
5.0 x 106
5.0 x 108
520,000,000
Astrology can be defined as
the idea that the positions of the stars and planets at the time of our birth determine our personalities and influence our future.
the scientific study of celestial objects such as planets, moons and stars.
the scientific study of astrological phenomena such as the Big Bang Theory.
the observation of the heavens using telescopes and other instruments.
In astrology, the constellations that the Sun passes through are considered to be very important. These constellations make up the:
Solar constellations
Zodiac
ecliptic
Starry Vault
Astrology is consider a pseudo-science.
TRUE
FALSE
This movement changes the direction of the Earth's axis and will cause the north star to change over time.
barycenter
precession
nutation
ellipse
Causes the stars to change their apparent position in the sky (every 26,000 years)
Nutation
Precession
Barycenter
Revolution
