Earth and Space Science chapter 1
A centimeter is
0.01m
the time needed for a planet to orbit the sun
depends on the average distance of the planet from the sun
the time at which a given star rises above the horizon each night is
earlier than the night above
Relative to the stars the moon seems to move
eastward
The Stars in a constellation
form a pattern in the sky as seen from the earth
Stars and planets are round because
gravity forces them into this shape
Living things
have evolved throughout the earths history
the speed of a planet in its orbit
is highest when it is closest to the sun
What distinguishes the scientific method from the other ways of looking at the natural world is
its reliances on experiment and observation
The length of the year is
more than 365 days
Scientific theories
must be constantly reviewed to see whether they are in accord with new experimental observations
A week is the time needed for
none answers correct
The period of the earths orbit around the sun is
one year
The object in the sky that lies very nearly on an extension of the earths axis
polaris
in the distant past, the length of the day was
shorter than 24 hrs
If the earth had no moon
the average tidal range would be smaller
A day is the time needed for
the earth to turn completely on its axis
Which of the following statements are true
the moon is chiefly responsible for the tides, with the suns influence modifying the tidal range
The British unit of lengths closest to the meter is the
yard
the longest of the following is
0.00001km
A meter is not equal to
0.01km
Shortest of the following is
0.1 mi
the prefix giga means
1,000,000,000
A person is 5 ft 8 in is Equivalent to
173 cm
Th number of cubic centimeters in a cubic foot is about
2.8 x 10 ^4
Kepler modified the
Copernician system
The discovery that the planetary orbits are eclipses fathers that circles was made by
Kepler
Arrange the following planets in the order
Mercury, Venus, Earth, Mars
the scientist who showed that gravity accounts for keplers law of planetary motion was
Newton
In which one or more of the following is the earth assumed to be the center of the universe?
The Ptolemaic system
2.142
correct as 2.1m^2
When the sun, the earth, and the moon are all in line
high tides are higher than usual and low tides are lower than usual
When first proposed, a scientific idea is usually called
hypothesis
Astrology
is nonsense
A regularity in observed data or a relationship between different quantities is usually called
law
A planet that cannot be seen with the unaided eye is
neptune
Gravity is not
responsible for holding atoms and molecules together
A year is the time needed for
the sun to drift compeletly around the sky
In most parts of the world high tides occur approximately
twice a day
If the earth were to revolve on its axis slower than it does today. its shape
would be closer to a perfect sphere