PHYSICS 21710

subject Type Homework Help
subject Pages 12
subject Words 1433
subject Authors Charles A. Higgins, James Shipman, Jerry D. Wilson

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page-pf1
The "surface" of a black hole is known as the _______________.
A) core
B) corona
C) photosphere
D) event horizon
Which of the Jovian planets has the most moons?
A) Jupiter
B) Saturn
C) Uranus
D) Neptune
The region of the electromagnetic spectrum with wavelengths just less than those in the
infrared region is the ______________ region.
A) visible
B) x-rays
C) gamma rays
D) radio waves
E) ultraviolet
page-pf2
If it is 10:00 A.M. EST in Washington, D.C., what is the time in Denver, Colorado, the
longitude of which is 30 more westerly?
A) 12 noon MST
B) 8:00 A.M. MST
C) 10:00 A.M. MST
D) 9:00 A.M. MST
The Mohs scale is based on how many minerals?
A) 8
B) 10
C) 12
D) 15
page-pf3
At noon on June 21, the Sun is directly overhead at a latitude of
A) 23.5N.
B) 23.5S.
C) 32.5N.
D) 0.
Fusion reactors of the future are likely to use ______________ as fuel.
A) enriched uranium
B) plutonium
C) americium
D) deuterium
The term probabilityis associated with the model of the atom proposed by
A) Schrdinger.
B) Heisenberg.
C) de Broglie.
D) Einstein.
page-pf4
The location on Earth's surface directly above an earthquake's focus is called
A) the shadow zone.
B) the epicenter.
C) ground zero.
D) the subduction zone.
The suffix -ose in a compound's name signifies a(n)
A) amide.
B) alcohol.
C) carbohydrate.
D) enzyme.
It is estimated that the global reserve of methane hydrate is ______________ the global
reserves of coal, oil, and natural gas.
A) equal to
B) less than
page-pf5
C) twice
D) ten times
Which sugar is found in greater than normal amounts in the blood of a diabetic?
A) Sucrose
B) Lactose
C) Glucose
D) Fructose
A relationship such as 1 in. = 2.54 cm is a(n)
A) equivalence statement.
B) base unit.
C) derived unit.
D) fundamental quantity.
page-pf6
Which of the following was the first synthetic compound to be made?
A) Neoprene
B) Polyethylene
C) Bakelite
D) Nylon
In the middle of the Crab Nebula (M1) is
A) a black hole.
B) a pulsar.
C) a quasar.
D) a white dwarf.
Consider the following pairs of points:
F: 0°N, 40°W G: 70°N, 60°W
0°N, 20°W 70°N, 40°W
H: 20°S, 130°E J: 30°S, 170°E
20°S, 150°E 30°S, 170°W
Which pair is closest together?
A) J
page-pf7
B) F
C) G
D) H
E) All are the same distance apart.
The acceleration of an object acted on by a net force perpendicular to the direction of
the object's original motion
A) causes a change in direction.
B) is described by Newton's laws.
C) causes a change in velocity.
D) all of these
The half-life of 3H is 12 years. About how long does it take for 7/8 of a sample of that
radionuclide to decay?
A) 3 years
B) 24 years
C) 4 years
D) 36 years
page-pf8
Voltage is defined as the ______________ per unit ______________.
A) charge; current
B) work; current
C) charge; work
D) work; charge
One ______________ is equal to one joule per second.
A) kilogram
B) newton
C) pound
D) watt
The seriousness of an asteroid collision is gauged by the ______________ scale.
page-pf9
A) Torino
B) Richter
C) Decibel
D) Sunami
E) Star
The variable r that appears in the equation F = Gm1m2/r2 is
A) the straight-line distance between the centers of the two masses.
B) the rate at which both objects are moving.
C) the radius of the first mass.
D) the radius of the second mass.
Clouds described as "artist's brushes" or "mare's tails" belong to what cloud family?
A) Middle
B) Low
C) High
page-pfa
D) None of these
The rate of a chemical reaction would be increased by
A) increasing the surface area of the reactants.
B) increasing the concentration of the reactants.
C) adding a catalyst to the reactants.
D) heating the reactants.
E) all of the above.
Which of the following is not one of the most common nonsilicate groups of minerals?
A) Sulfides
B) Oxides
C) Chlorides
D) Carbonates
page-pfb
When an unstable Ag nucleus undergoes gamma decay, the nucleus formed is that of
A) Silver.
B) Indium.
C) Palladium.
D) Rhodium.
E) Cadmium.
When the equation NH4NO3N2O + H2O is balanced, the coefficient of H2O
is
A) 3.
B) 4.
C) 2.
D) 1.
Stalactites are
page-pfc
A) Rocks solidified from molten material below ground.
B) Consolidated sediment deposited in layers.
C) Dripstone formations that form on cavern floors.
D) Dripstone formations that form on cavern ceilings.
Which of the following is not a fundamental quantity?
A) Weight
B) Length
C) Time
D) Mass
The stellar parallax of many stars is too small to be measured. This is evidence that
these stars
A) move in very small orbits.
B) are almost in line with the Sun.
C) are very distant.
D) do not move.
page-pfd
An object will ______________ in a fluid if its average density is ______________ the
density of the fluid.
A) sink; greater than
B) float; equal to
C) sink; less than
D) float; twice
The ratio by mass of carbon to hydrogen in 100 g of a certain compound is 6 to 1. The
ratio in 200 g of the same compound will be
A) 24 to 1.
B) 6 to 1.
C) 12 to 1.
D) none of these.
page-pfe
Hurricanes derive their energy from ______________.
In a dc motor, the polarity and current are reversed by a(n) __________.
A series of ocean waves, each 6.0 m from crest to crest and moving past an observer at
a rate of 2.0 waves per second, has what speed?
The frequency and energy of a photon are ______________ proportional.
page-pff
The international standard time is called ____________.
Calculate the frequency, in hertz, of photons of light with energy of 2.00 10-19 J.
Our solar system is thought to have evolved from a(n) ______________.
Optics is divided into ray optics and ______________ optics.
page-pf10
The "surface" of a black hole is known as the _______________.
The measurement of space in any direction is called ______________.
The ratio of mass to volume is known as ______________.
page-pf11
Our current calendar is the____________ calendar.
Subsurface soil that remains permanently frozen is called ______________.
FM radio reception may be blocked by buildings because the wavelengths are too short
to be ______________ around buildings.
The first law of thermodynamics states that heat added to a closed system can change
the internal energy of the system and/or do ______________.
page-pf12
The energy of a photon equals ______________ multiplied by the frequency.
Synthetic compounds that can be molded and hardened are called ______________.
An object may be electrically neutral, but regions may be charged by _____________.

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