Who discovered the electron in 1897?
A) Dalton
B) Bohr
C) Rutherford
D) Thomson
A measurement of 0.00254 g is the same as
A) 0.254 mg.
B) 25.4 mg.
C) 254 mg.
D) 2.54 mg.
E) none of these.
The SI base units making up the newton are
A) kg m/s.
B) g m/s2.
C) kg m/s2.
D) kg2/s.
A high tide is occurring at Charleston, South Carolina (80W, 33N). What two
longitudes are experiencing low tide?
A) 10E and 170E
B) 10W and 170W
C) 10E and 170W
D) 10W and 170E
The bending of light because of a speed change as it moves from one medium to
another is called
A) diffraction.
B) refraction.
C) reflection.
D) the Doppler effect.
The next phase in the life cycle of the Sun will be
A) the formation of a red giant.
B) a move to the main sequence.
C) collapse to a white dwarf.
D) a supernova explosion.
The image of a real object formed by a single converging lens cannotbe
A) real, inverted, and enlarged.
B) real, inverted, and the same size as the object.
C) virtual, upright, and enlarged.
D) real, inverted, and reduced.
E) virtual, upright, and reduced.
The Sun is a
A) moon.
B) galaxy.
C) planet.
D) star.
Which element is used in safety flares and fireworks because it burns so brightly?
A) Potassium
B) Magnesium
C) Carbon
D) Chlorine
Most of Earth’s fresh water is in
A) the atmosphere.
B) lakes and rivers.
C) glacial ice sheets.
D) aquifers.
What basic type of reaction is illustrated by the general equation A+ BAB?
A) Combination
B) Decomposition
C) Double-replacement
D) Single-replacement
The energy involved in a phase change is called the
A) specific heat.
B) thermal energy.
C) internal energy.
D) latent heat.
Which pair are actually the same compound?
A) (CH3)3N and CH3CH2CH2NH2
B) CH3CH2CH(NH2)CH3and CH3CH(NH2)CH2CH3
C) CH3CH(Cl)CH3and CH3CH2CH(Cl)CH3
D) CH3(CH2)2CH3and CH3CH2CH(CH3)2
E) CH3CH2CH2NH2and CH3CH2CH2N2H2
A functional group is
A) exemplified by the R in ROH.
B) a vertical column in the periodic table.
C) exemplified by the COOH in RCOOH.
D) a horizontal row in the periodic table.
An attempt to remedy the difference in apparent solar days was the calculation of a
A) meridian day.
B) 24-hour day.
C) sidereal day.
D) mean solar day.
How many shells in an atom of silicon contain electrons?
A) 3
B) 2
C) 5
D) 4
When two advancing fronts meet, a typical result is
A) a stationary front.
B) a warm front.
C) a cold front.
D) none of these.
Which of the following is nota name used in the classification of galaxies?
A) Irregular
B) Regular
C) Spiral
D) Elliptical
Which of the following could be the molecular formula for an alkane?
A) C7H7
B) C9H18
C) C4H7
D) C3H4
E) C2H6
Which of the following is a negatively charged polyatomic ion?
A) Ammonium ion
B) Oxide ion
C) Sodium ion
D) Nitrate ion
For normal vision, an object can be seen clearly when it is beyond the
A) far point.
B) nearsighted point.
C) farsighted point.
D) near point.
The Mesozoic era began about how many million years ago?
A) 3
B) 545
C) 245
D) 65
Which epoch is also called the Ice Ages?
A) Permian
B) Holocene
C) Pleistocene
D) Cretaceous
On March 21, the noonday Sun is overhead at what latitude?
A) 0
B) 23.5N
C) 23.5S
D) That of the Tropic of Cancer
How many moles would 44 g of carbon dioxide, CO2, be?
A) 3.0
B) 2.0
C) 1.0
D) None of these
Which of the following types of radiation has the leastability to penetrate matter?
A) Alpha particles
B) Gamma rays
C) X-rays
D) Beta particles
Stromatolites are structures created by
A) algae.
B) brachiopods.
C) sea worms.
D) trilobites.
Alkyl halides are distinguished by the fact that at least one hydrogen atom in a
hydrocarbon has been replaced by a(n)
A) alkyl group.
B) OH group.
C) halogen atom.
D) oxygen atom.
E) CH3group.
The deflection of one lithospheric plate beneath another plate with which it is colliding
is called
A) subduction.
B) superposition.
C) cross-cutting.
D) plutonic movement.
For a specific element, photons of how many different energies could be emitted by
electrons in the n= 2 level as they return to the n= 1 level?
A) 3
B) 4
C) 2
D) 1
When the Moon rises at approximately 12 noon, it is in the ______________ phase.
A) first-quarter
B) last-quarter
C) new
D) full
Which has a larger mass, a liter of water or a liter of mercury (a liquid metal)?
A) mercury
B) water
C) none of these
The diameter of an average nucleus is about
A) 10-5m.
B) 10-7m.
C) 10-10m.
D) 10-14m.
The most distant objects yet detected in the universe are
A) quasars.
B) pulsars.
C) superclusters.
D) globular clusters.
Which of the following is the shell electron configuration for carbon?
A) 3, 3
B) 6
C) 2, 4
D) 1, 5
A beam of light can be thought of as consisting of a stream of particles called
______________.
Stratocumulus clouds belong to the ______________ cloud family.
Kinetic and potential energies are forms of __________ energy.
Polarizing sunglasses have the transmission axis oriented ______________.
The most distant planet that can be seen with the unaided eye is ______________.
A monomer may be repeated many times in the formation of a chainlike molecule
called a(n) ______________.
The Sun is at the autumnal equinox on ______________.
Temperature is an example of a(n) ______________ quantity.
Wood from an ancient stump has a ratio of carbon-14 to carbon-12 that is one-eighth
that of new wood. About how old is the stump? (Carbon-14’s half-life is 5730 years.)
The concept of uniformitarianism was developed by ______________, the “father of
geology.”
Determine the distance to Proxima Centauri in light-years, if it is 1.3 pc away.
Except for 1H and 3He, all nuclei having fewer ______________ than ______________
are radioactive.
The number of protons in an atom of is ______________.
The Andes Mountains in South America are examples of ______________ mountains.
Give the chemical symbol for each element.
The cluster of galaxies that includes our Milky Way is called the _______________.
On bare feet, a tile floor feels colder than a rug because the tile has a greater
______________.