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The planet with the Great Dark Spot is
A) Jupiter.
B) Saturn.
C) Uranus.
D) Neptune.
A normal lapse rate of 3.5 F/1000 ft is equivalent to
A) 3.5 C/m.
B) 1.9 C/1000 ft.
C) 3.5 C/1000 ft.
D) 6.5 C/1000 ft.
Which of the following gases is monatomic?
A) Nitrogen
B) Argon
C) Hydrogen
D) Chlorine
The reason why the sky is blue is best explained by
A) the greenhouse effect.
B) Rayleigh scattering.
C) the dew point.
D) auroras.
An object is placed at the center of curvature of a concave mirror. The image is
A) inverted, real, and the same size as the object.
B) virtual and the same size as the object.
C) virtual and smaller than the object.
D) virtual and enlarged.
E) erect, real, and the same size as the object.
The diameter of the Moon is approximately
A) 800 mi.
B) 239,000 mi.
C) 93,000,000 mi.
D) 2200 mi.
Which of these colors of light has photons of lowestenergy?
A) Blue
B) Green
C) Yellow
D) Red
In the equation A = B/C, the A and B are said to be _______________ proportional.
A) directly
B) inversely
C) not
D) exactly
A ferromagnetic material loses this property above the ______________ temperature.
A) domain
B) Faraday
C) Curie
D) Coulomb
Earth's magnetic field
A) results from a huge bar magnet within the planet.
B) is believed to arise from currents within the planet's core.
C) is always parallel to the planet's surface.
D) is always in the same direction.
A(n) ______________ is an elementary particle with a charge of "1.6 x 10-19C.
A) electron
B) neutron
C) proton
D) atom
When an earthquake occurs, the location on Earth's surface above the point of initial
energy release is called the earthquake's
A) fault line.
B) focus.
C) epicenter.
D) none of the above.
The stars of highest photospheric temperature are those of spectral class
_______________.
A) O
B) M
C) K
D) C
Hydrogen gas would be a product of the reaction of
A) vinegar and baking soda.
B) iron and hydrochloric acid.
C) oxygen and methane.
D) HCl and NaOH.
The most common rocks in Earth's crust are
A) sedimentary.
B) metamorphic.
C) igneous.
D) lava.
A speedometer indicates ______________ if the automobile is traveling forward.
A) instantaneous acceleration
B) instantaneous speed
C) instantaneous velocity
D) average speed
E) average acceleration
What basic type of reaction is illustrated by the general equation ABA+ B?
A) Combination
B) Decomposition
C) Double-replacement
D) Single-replacement
The diameter of an average atom is about
A) 10-7m.
B) 10-10m.
C) 10-5m.
D) 10-14m.
Which of the following is thought to be a black hole?
A) Gleise 229B
B) Sirius B
C) Orion Nebula
D) Cygnus X-1
The formula mass of calcium hydroxide, Ca(OH)2, is
A) 74.1 u.
B) 38.1 u.
C) 57.1 u.
D) 58.1 u.
If two atoms have equal electronegativity, a bond formed between them is generally
A) ionic.
B) nonpolar.
C) very weak.
D) polar.
Which of the following has the smallest albedo?
A) Water
B) Polar ice
C) Fresh snow
D) Dry sand
A ball is thrown up in the air with an initial velocity of 78.4 m/s upward. How long
does it take the ball
a. to go up?
b. to come down after reaching maximum height?
If the lever arm of a 5-N force is 7 m, what is the torque acting on the object due to this
force?
A) 35 Nm
B) 0.71 Nm
C) 1.4 Nm
D) 12 Nm
E) cannot be determined
A ______________ is always shorter than a ______________ .
A) solar day; sidereal day
B) solar day; mean solar day
C) sidereal day; solar day
D) mean solar day; solar day
Potassium-40, one of the six major radionuclides used for radiometric dating, decays to
A) nitrogen.
B) strontium.
C) lead.
D) argon.
Silicates
A) are minerals.
B) contain silicon and oxygen.
C) consist of tetrahedra.
D) all of the above.
The standard unit of length, the meter, is now defined with reference to
A) a meridian on the Earth.
B) the French metre.
C) the speed of light.
D) a platinum-iridium bar.
E) a member of the royal family.
Light waves travel fastest in
A) water.
B) glass.
C) a vacuum.
D) air.
E) none of these; they travel at the same speed in all these media.
Which alcohol is used as an antifreeze?
A) 2-Hydroxypropane
B) Ethylene glycol
C) Ethanol
D) Methanol
The most reactive of all elements is
A) hydrogen.
B) fluorine.
C) chlorine.
D) sodium.
The sedimentary rock known as ______________ consists of deposits of calcium
carbonate (calcite).
The three principal types of mountain building are fold, volcanic, and
______________.
Chemically combining glucose and fructose produces the compound named
______________.
A star of magnitude 0 is how many times brighter than a star of magnitude 6?
Gabbro and rhyolite are classified as ______________rocks.
______________ chemistry is the most fundamental of the five major divisions of
chemistry.
Linear momentum is the product of mass times ______________.
A barometer that does not use mercury is a(n) ______________ barometer.
The actual age of rock layers and geologic events is referred to as ______________
geologic time.
A high tide is occurring at Charleston, South Carolina (80W,33N). At approximately
what other longitude is a high tide occurring?
A change in the direction of a wave resulting from its meeting an opaque material is
called ______________.
The frequency and the wavelength of a wave are ______________ proportional.
Using a sextant, a ship's captain measures the altitude of the noonday Sun to be 20oon
June 21. What is the latitude of the ship?
The second excited state for an electron in a hydrogen atom would be where nequals
______________.
In a 12-V battery circuit, a 10-resistor and a 30-resistor are connected in series.
How much current does the battery supply to the circuit?
