Earth and Space Science: The Scientific Method (Chapter 1)
a centimeter is
0.01 m
of the following, the longest is a. 1000 ft b. 500 m c. 1 km d. 1 mi
d. 1 mi
a week is the time needed for a. the sun to drift around the sky b. the moon to drift around the sky c. the earth to turn on its axis d. none of the above
d. none of the above
according to kepler's third law, the time needed for a planet to complete an orbit around the sun
depends on the planet's distance from the sun
relative to the stars, the moon seems to move
eastward
kepler modified the copernican system by showing that the planetary orbits are
ellipses
the stars in a constellation
form a pattern in the sky as seen from the earth
the speed of a planet in its orbit
is highest when it is closest to the sun
the ongoing evolution of living things
is one of the basic concepts of biology
the earth bulges slightly at the equator and is flattened at the poles because
it spins on its axis
the discovery that the planetary orbits are ellipses rather than circles was made by
kepler
a regularity in observed data or a relationship between different quantities is usually called
law
the planet closest to the sun is
mercury
a planet not visible to the naked eye is
neptune
a planet that cannot be seen with the unaided eye is
neptune
the scientist who showed that gravity accounts for kepler's laws of planetary motion was
newton
astrology is
nonsense
the period of the earth's orbit around the sun is
one year
the object in the sky that apparently moves least in the course of time is
polaris
what system assumes earth to be the center of the universe?
ptolemaic system
in the distant past, the length of a day was
shorter than 24 hours
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
leap years are needed because
the length of the year is not a whole number of days
in most parts of the world, high tides occur approximately
twice a day
the usual tidal pattern in most parts of the world consists of
two high tides and two low tides daily
if earth were to revolve on its axis slower than it does today, its shape
would be closer to a perfect sphere
the british unit of length closest to the meter is the
yard
the size of a picture is given as 84 cm by 255 cm. Since (84)(255)= 2.142, the area of the picture is correctly expressed as
2.1 m^2
a person is 180 cm tall. this is equivalent to
5 ft 11 in
the scientific method is
a continuing process
which of the following is no longer considered valid? a. ptolemaic system b. copernican system c. kepler's laws of planetary motion d. newton's laws of gravity
a. ptolemaic system
a constellation is
an apparent pattern of stars in the sky
a scientific law or theory is valid
as long as it is not contradicted by new experimental findings
the longest of the following is a. 1 mm b. 0.00001 km c. 0.01 in d. 0.001 ft
b. 0.00001 km
tides are caused by
both the sun and the moon
high tide occurs at a given place
both when the moon faces the place and when the moon is on the opposite side of the earth from the place
a meter is not equal to a. 100 cm b. 10^3 mm c. 0.01 km d. 10^-3 km
c. 0.01 km
of the following, the shortest is a. 1 mm b. .01 in c. .001 m d. .001 ft
.01 in
the prefix giga stands for
1,000,000,000
the prefix micro stands for
1/1,000,000
the measurements of a room are given as length = 5.28 m and width = 3.1 m. since (5.28)(3.1)=16.368, the rooms area is correctly expressed as
16 m^2
a person is 5 ft 8 in tall. this is equivalent to ________ cm
173
the number of cubic centimeters in a cubic foot is about
2.8 x 10^4
arrange the following planets in order from their distance from the sun 1. venus 2. mars 3. earth 4. mercury
4 1 3 2
a hypothesis is
a new scientific idea
scientific theories must be
constantly reviewed to see whether they are in accord with new experimental observations
the shortest of the following is a. 10^4 in b. 10^4 mi c. 10^3 ft d. 0.1 mi
d. 0.1 mi
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 before
living things have
evolved throughout earth's history
stars and planets are round because
gravity forces them into shape
when the sun, earth, and moon are all in line,
high tides are higher than usual and low tides are lower than usual
the speed of a planet in its orbit around the sun is
highest when the planet is closest to the sun
the law of gravity
holds everywhere in the universe
when first proposed, a scientific idea is usually called a
hypothesis
what distinguishes the scientific method from other ways of looking at the natural world is
its reliance on experiment and observation
the length of the year is
more than 365 days
the object in the sky that lies very nearly on an extension of the earth's axis is
polaris
gravity is not
responsible for holding atoms and molecules together
kepler modified
the copernican system
a year is the time needed for
the sun to drift completely around the sky
the moon is chiefly responsible for ____, with the sun's influence modifying the _________
tides; tidal range