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An insulator has a negative electric charge of 2.4 x 10-17C. How many electrons were
added or removed?
A) 150 electrons removed
B) 67 electrons removed
C) 150 electrons added
D) 67 electrons added
The point of the initial energy release of an earthquake is called the
A) shadow zone.
B) subduction zone.
C) focus.
D) epicenter.
The closest planet to Earth is
A) Mars.
B) Venus.
C) Mercury.
D) Saturn.
What electric charge is characteristic for an ion of Cl?
A) 7+
B) 0
C) 1"
D) 1+
Rounding the number 200.601 to three significant figures
A) gives 199.
B) gives 200.
C) gives 200.601
D) gives 201.
E) cannot be done.
Plutons are
A) bodies of intrusive igneous rocks.
B) solids made of tephra.
C) active volcanoes.
D) extinct volcanoes.
The name of which astronomer is most closely linked with that of Henry Russell?
A) Henrietta Leavitt
B) Johannes Kepler
C) Ejnar Hertzsprung
D) Edwin Hubble
The gravitational pull of Earth acting on an object is zero when the object
A) has zero acceleration.
B) is in free fall.
C) is midway between Earth and the Moon.
D) is in orbit around Earth.
E) none of these
The letters LMC refer to the galaxy named _______________.
A) Light Magellanic Collection
B) Large Magellanic Collection
C) Large Magellanic Cloud
D) Light Magellanic Cloud
The coefficients needed to balance the reaction Sb2S3+ HCl SbCl3+ H2S are,
respectively,
A) 1, 2, 1, and 1.
B) 2, 1, 3, and 1.
C) 1, 2, 1, and 3.
D) 1, 6, 2, and 3.
E) 1, 1, 1, and 1.
The formation of which of the following is not directly caused by erosive wave action?
A) Wave-cut cliffs
B) Sea stacks
C) Pocket beaches
D) Sea caves
The speed of a comet in its orbit around the Sun is ______________ when its distance
from the Sun is least (perihelion).
A) zero
B) reversed
C) greatest
D) least
The color of a star reveals its
A) apparent brightness.
B) component elements.
C) density.
D) surface temperature.
The general formula RNH2is that of
A) an ester.
B) an amine.
C) an amide.
D) none of these
Consider a wire in a magnetic field, as shown in the following figure, with a current
flowing downward through it. What will happen to the wire?
A) The wire will be forced toward the north pole.
B) The wire will be forced perpendicular to the plane of the magnetic field, into the
page.
C) The wire will be forced perpendicular to the plane of the magnetic field, out of the
page.
D) The current will cease flowing.
E) The wire will be forced toward the south pole.
The downslope movement of surface materials as a result of gravity and of the agents
that causesuch movement is called
A) erosion.
B) gradation.
C) landslides.
D) none of these.
The elapsed time between two successive crossings of the same meridian by a star other
than the Sun is known as
A) the tropical year.
B) one sidereal day.
C) the sidereal year.
D) none of these.
The metric prefix that means one million (1,000,000) is
A) centi-.
B) mega-.
C) milli-.
D) nano-.
Molten rock material on Earth's surface is called
A) magma.
B) lava.
C) pluton.
D) silica.
Consider a wire in a magnetic field, as shown in the following figure, with a current
flowing upward through it. What will happen to the wire?
A) The wire will be forced toward the north pole.
B) The wire will be forced perpendicular to the plane of the magnetic field, into the
page.
C) The wire will be forced perpendicular to the plane of the magnetic field, out of the
page.
D) The current will cease flowing.
E) The wire will be forced toward the south pole.
Snowstorms accompanied by high winds and low temperatures are called
A) blizzards.
B) ice storms.
C) hail storms.
D) tornados.
Rocks formed from consolidated sediment deposited in layers are known as
_____________ rocks.
A) crystalized
B) foliated
C) igneous
D) sedimentary
Which carbohydrate cannotbe digested by humans as a direct source of energy?
A) Fructose
B) Glucose
C) Sucrose
D) Cellulose
E) Starch
Tides are caused by
A) the gravitational pull of the Moon and the Sun.
B) Earth's rotation.
C) the Moon keeping the same face toward Earth.
D) none of these.
What is the wavelength in meters, of a sound wave (v= 340 m/s) with a frequency of 4
Hz?
A) 85 Hz
B) 1360 Hz
C) 340 Hz
D) 0.012 Hz
By definition, the loss of electrons by an atom or ion is called
A) neutralization.
B) reduction.
C) oxidation.
D) displacement.
During ester formation, the "OH is removed from the
A) carboxylic acid.
B) amine.
C) alcohol.
D) sugar.
When the equation Sb2S3+ HCl SbCl3+ H2S is balanced, the total of all the
coefficients (both written and "understood") is
A) 10.
B) 14.
C) 9.
D) 12.
One of the best indicators of photochemical smog is
A) CO2.
B) HC.
C) O3.
D) NOx.
Which of the following rocks is a sedimentary rock?
A) Slate
B) Granite
C) Marble
D) Conglomerate
A constant net force acting on an object that is free to move will produce a constant
A) speed.
B) velocity.
C) displacement.
D) acceleration.
E) distance.
The first 87% of geologic time is often called
A) Hadean time.
B) Pangaean time.
C) Precambrian time.
D) Proterozoic time.
Trilobites lived during which era?
A) Paleozoic
B) Cenozoic
C) Mesozoic
D) Archeozoic
The image formed by a diverging spherical lens is always
A) upright.
B) reduced.
C) virtual.
D) all of these.
When many of the atoms or molecules in a sample have been excited into a metastable
state, a(n) ______________ has occurred.
A) ultraviolet catastrophe
B) population inversion
C) coherent emission
D) incoherent absorption
The lowest places on Earth's surface are called __________ trenches.
A ball is dropped from an upper-story dorm window. Neglecting air resistance, what is
the speed of the ball when it has fallen 2.5 m?
The element ______________ displays some chemical properties of both Group 1A and
Group 7A elements.
A line of equal latitude is called a(n) ______________.
A 10-resistor and a 20-resistor are connected in parallel, and this combination is
connected in series to a 30-resistor. If the arrangement is hooked to a 12-V battery,
how much current flows in the circuit?
Calculate the energy En, in electron volts, of a hydrogen atom's electron with n= 5.
The two principal agents of metamorphism are pressure and _____________.
Two carts (A's mass = 4.5 kg and B's mass = 1.5 kg) are held against a strong,
compressed spring. The carts are released simultaneously, and B moves off to the right
with a speed of 2.0 m/s. What is A's initial velocity?
Dripstone formations that form on cavern ceilings are called _____________.
The three types of plate boundaries are convergent, ______________, and transform
boundaries.
The peculiar odor noticed close to electrical sparking is due to the chemical called
______________, which has the formula ______________.
Zero potential in household electricity is called ______________.
The term weather refers to the atmospheric conditions of the ______________.
Physics deals with force, energy, motion, and ________________.
A current of 6.0 A flows through a resistance of 50 W. How much power is dissipated?
Sediments that are composed of solid fragments derived from preexisting rocks are
called ______________ sediments.
The angle or arc distance of a point on the celestial sphere from the zenith is called the
______________ angle.
For normal vision, an object can be seen clearly when it is beyond the _____________.
Elements in which the outer shell contains 8 electrons are known as the
______________.
