Which of the following classes of rock is most likely to contain fossils?
A) Igneous
B) Foliated
C) Metamorphic
D) Sedimentary
The ______________ occurs on June 21.
A) autumnal equinox
B) winter solstice
C) summer solstice
D) vernal equinox
When a cold front advances under a warm front, this results in a(n)
A) stationary front.
B) anticyclone.
C) cold front occlusion.
D) warm front occlusion.
A sample of gas has its number of molecules tripled, its Kelvin temperature quadrupled,
and its volume tripled. By what factor has the new pressure changed relative to the
original pressure?
A) 4
B) 4.7
C) 36.3
D) 36
The number of molecules in a container is doubled and the Kelvin temperature doubled.
The volume remains unchanged. The new pressure will be how many times greater than
the original pressure?
A) 4
B) 1
C) 10
D) 8
A(n) ______________ is a tested explanation of a broad segment of basic natural
phenomena.
What happens to a sample of water when its temperature is reduced between 4°C and
100°C?
A) Its density increases.
B) It vaporizes.
C) Its density decreases.
D) Its density remains constant.
An object is dropped from a vertical distance of 31.7 m above the ground, and it takes
2.54 sec to fall that distance. A second identical object to launched from the same
height, with a horizontal velocity of 64.0 m/s. How long does the second object take to
fall the 31.7 m?
A) More than 2.54sec
B) Almost 2.54 sec.
C) Less than 2.54sec
D) Exactly 2.54 sec
E) Much less than 2.54sec
The closest star to the Sun is named
A) Polaris.
B) Sirius.
C) Betelgeuse.
D) Proxima Centauri.
How many times greater is the speed of red light (l = 700 nm) than the speed of
ultraviolet light (l = 380 nm) in a vacuum?
A) 1.84 , the first color of light is faster
B) 0.54 , the second color of light is faster
C) 3.00 x 108, the first color of light is faster
D) 1.00 , both colors of light have the same speed
E) 3.00 x 108, the second color of light is faster
The number of daylight hours at 40S is greatest during the month of
A) June.
B) December.
C) September.
D) March.
When an unstable Krypton nucleus undergoes beta decay, the nucleus formed is that of
A) Krypton.
B) Strontium.
C) Bromine.
D) Selenium.
E) Rubidium.
A solution of what sugar is used for intravenous feeding in a hospital?
A) Sucrose
B) Fructose
C) Glucose
D) Lactose
A 8-kg object moves vertically a distance of 3 m. Its potential energy has changed by
approximately how much?
A) It has increased by 24 J.
B) It has decreased by 240 J.
C) It has decreased by 24 J.
D) It has increased by 240 J.
A solution with a pH of 1 is
A) strongly acidic.
B) weakly basic.
C) strongly basic.
D) weakly acidic.
A high-pressure air mass that moves over a region and becomes stationary may give
rise to
A) a pressure inversion only.
B) a radiation inversion only.
C) a subsidence inversion only
D) all of the above
The “splitting” of the atom was first discovered in
A) 1952.
B) 1869.
C) 1938.
D) 1905.
Periods are divided into
A) eons.
B) epochs.
C) millennia.
D) eras.
The study of compounds that contain carbon is called
A) biochemistry.
B) inorganic chemistry.
C) polymer chemistry.
D) organic chemistry.
E) physics.
The cluster of galaxies that includes our Milky Way is called the _______________.
A) Local Group
B) universe
C) solar system
D) Milky Cluster
Which of the following is a vector quantity?
A) Force
B) Power
C) Work
D) Time
E) None of these
The idea of continental drift was not generally accepted when Wegener proposed it
because
A) the Bible did not support it.
B) Wegener was a meteorologist, not a geologist.
C) Wegener was not well known.
D) no satisfactory mechanism was proposed.
A cohesive aggregate of one or more minerals is called a
A) crystal.
B) gem.
C) silicate.
D) rock.
The process of transforming sediment into sedimentary rock is called
A) lithification.
B) striation.
C) metamorphism.
D) hardening.
A(n) ______________ is an elementary particle with no charge.
A) electron
B) neutron
C) proton
D) atom
The Cambrian is a(n)
A) epoch.
B) era.
C) eon.
D) period.
An example of a sedimentary rock is
A) granite.
B) gneiss.
C) gabbro.
D) shale.
When a hydrocarbon or carbon-hydrogen-oxygen compound is burned completely, the
products are
A) CO2and H2O.
B) CH2and O2.
C) CO and H2.
D) C and H2.
The Moon completes one orbit around Earth about every
A) 29.5 days.
B) 7 days.
C) 365 days.
D) sidereal day.
The two elements silicon and oxygen, taken together, make up about what percent of
Earth’s crust by mass?
A) 25%
B) 64%
C) 50%
D) 75%
Which of the following is a positively charged polyatomic ion?
A) Potassium ion
B) Sulfide ion
C) Ammonium ion
D) Sulfate ion
Although the United States has less than 5% of the world’s population, it accounts for
approximately ______________ of the world’s annual consumption of fossil fuels.
A) 15%
B) 25%
C) 35%
D) 45%
An example of a diverging spherical mirror is
A) a bathroom mirror.
B) a round Christmas tree ornament.
C) a flashlight reflector.
D) none of these.
An extremely large collection of stars bound together by gravitational attraction and
occupying a huge volume of space is called a _______________.
A) planetary nebula
B) solar system
C) universe
D) galaxy
Homogeneous mixtures are also called ______________.
Some people mistakenly call noon and midnight ______________ and
______________.
When an object is inside the focal point of a concave mirror, a(n) _______________
image always results.
If the temperature and number of molecules remain constant for a gas, a pressure
increase results in a volume ______________.
The Moon’s maria, or plains, are believed to have been caused by ______________.
The process of leveling of the Earth by the wearing away of high places and the
transportation of sediments to, and their deposition at, lower levels is called
______________.
A compass registers ______________.
The wave function
mathematically represents the ______________ associated with a
particle.
For an object in uniform circular motion, the acceleration points toward
______________.
The alkali metals have ______________ valence electron(s).
Relative humidity is measured with a(n) ______________.
An object moving in a circle with a constant speed has a(n) ______________ directed
toward the center of the circle.
Which one of the following isotopes of gallium would you expect to be radioactive?
Explain your choice.
Bohr’s revolutionary step in his theory was to ______________ the angular momentum
of the electron.
The two principal agents of metamorphism are heat and _____________.
The downslope movement of soil and rock under the influence of gravity is known,in
general, as ______________.
The sedimentary rock known as ______________ consists of rounded pebbles
cemented together by silica, calcium carbonate, or iron oxide.
The term ______________ refers to the way in which a mineral breaks into splinters,
irregularly shaped pieces, or shell-shaped surfaces.
Relative and absolute geologic times are combined to give the ______________ scale.