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The local solar time at 25W is 12:00 noon. What is the longitude of an observer who
sees the full moon on her meridian at this time?
A) 155E
B) 65E
C) 25E
D) 25W
E) None of the above
How good or bad (in terms of pollution) the air is, is rated by a color-coded ________
Index.
A) Irritant
B) Pollution
C) Air Quality
D) Pollen
An object in free fall has
A) a constant speed.
B) a constant velocity.
C) a velocity that changes 9.8 m/s each second.
D) an acceleration that depends on its mass.
For an ohmic conductor, current is
A) inversely proportional to voltage.
B) inversely proportional to resistance.
C) independent of resistance.
D) independent of voltage.
The first shell of an atom can hold a maximum of how many electrons?
A) 1
B) 2
C) 6
D) 8
When atoms unite by transferring electrons, they should form
A) a polar molecule.
B) a covalent compound.
C) an ionic compound.
D) an organic compound.
The following are data for an accelerating car:
t (s) 0 5 10 15 20
------------------------
v (m/s) 0 3 6 9 12
a. Is this car undergoing uniform acceleration?
b. If so, what is the acceleration?
Which of the following sound frequencies lie(s) in the audible range?
A) 16 Hz
B) 8 kHz
C) 1 MHz
D) All of these
The amount of heat necessary to change 1 kg of a solid into a liquid at the same
temperature is called the
A) entropy.
B) melting point.
C) latent heat of vaporization.
D) latent heat of fusion.
The formula for iron(II) sulfate is
A) Fe2SO4.
B) Fe2(SO4)2.
C) Fe(SO4)2.
D) FeSO4.
The Lewis symbol would be characteristic of which group?
A) 2A
B) 4A
C) 3A
D) 1A
Which of the following four elements is a neutron-absorbing material used in
controlling nuclear reactors?
A) Gold
B) Boron
C) Iron
D) Carbon
What type of volcano forms a layered, composite cone?
A) Fumarole
B) Cinder cone
C) Stratovolcano
D) Shield volcano
When the number of protons in a nucleus exceeds ______________, the nucleus is
unstable.
A) 65
B) 56
C) 83
D) 103
The Quarternary is a(n)
A) epoch.
B) era.
C) eon.
D) period.
The majority of stars are
A) white dwarfs.
B) giants.
C) main-sequence stars.
D) neutron stars.
An incredibly dense star so massive that light cannot escape from its surface is called a
_______________.
A) red giant
B) black hole
C) white dwarf
D) pulsar
Polarization involves
A) the orientation of field vectors.
B) only longitudinal waves.
C) diffraction.
D) interference.
A beam of laser light is
A) neither monochromatic nor coherent.
B) monochromatic but not coherent.
C) coherent but not monochromatic.
D) both monochromatic and coherent.
The motion of a Foucault pendulum proves that Earth is
A) rotating.
B) revolving.
C) precessing.
D) an oblate spheroid.
A general principle of ionic compound formation is that the total ionic charge in the
formula unit must be
A) 0.
B) no greater than that of the metal ion.
C) between +4 and "4.
D) no less than that of the nonmetal ion.
Earth's continental crust ranges in thickness from about
A) 98 to 140 km.
B) 19 to 40 km.
C) 5 to 26 km.
D) 8 to 16 km.
A large ice mass that flows on a land surface under the influence of gravity is called
A) a glacier.
B) a land slide.
C) an ice river.
D) none of these.
Photosynthesis produces ______________ in the atmosphere.
A) carbon dioxide
B) oxygen
C) argon
D) carbon monoxide
The heating of a room by a fire in a fireplace is chiefly due to
A) vaporization.
B) radiation.
C) convection.
D) conduction.
Earth's mantle is
A) metallic.
B) very dense gas.
C) solid.
D) liquid.
A visual defect wherein a person can see nearby objects clearly but not distant objects is
called
A) dispersion.
B) destructive interference.
C) farsightedness.
D) nearsightedness.
According to the Bohr theory, the probability of finding a hydrogen atom's ground-state
electron 0.053 nm from the proton is
A) low, but not zero.
B) 100%.
C) zero.
D) high, but not 100%.
A sound level of 19 dB is how many times as intense as one of 10 dB?
A) 8
B) 9
C) 3
D) 18
Craters on the Moon are believed to have been caused by
A) wind erosion.
B) water erosion.
C) the impact of meteorites.
D) volcanic action.
Pencil "lead" (graphite) is made primarily of
A) oil.
B) PbO2.
C) carbon.
D) Pb.
The term probabilityis associated with the model of the atom proposed by
______________.
After a major earthquake, the rocks may continue to adjust to their new positions,
causing additional vibrations called ______________.
State which element is oxidized and which is reduced in the reaction Fe + Cl2FeCl2.
Approximately how many times faster is the speed of light in vacuum than the speed of
sound in air?
The expression that mathematically describes the force between two static electric
charges is called ______________.
An electrically neutral particle composed of two or more atoms chemically combined is
called a(n) ______________.
The study of all aspects of the atmosphere is called ______________.
The straight-line distance and direction between two points are, together, called
______________.
Eighty-eight prominent groups of stars in the sky are called the _______________.
Give the name for each element.
The SI unit of frequency is ______________.
Conditions opposite to those of El Nio conditions are called ______________.
The formula for the ionic compound sodium nitride is ______________.
The apparent path that the Sun traces annually along the celestial sphere is known as the
_______________.
The energy levels of electrons in atoms are ______________, which means that only
certain values of energy are allowed.
