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The shell model presented in this book is not very accurate. Why then is it presented?
A) It reminds us that the study of matter relates to the solar system.
B) Most instructors are not good enough artists to duplicate the complicated artwork of
true model on the chalk board for explanation purposes.
C) The shell model is derived from classical physics, which is still the most widely
accepted approach to understanding atomic theory.
D) The shell model is simpler and easy to understand.
Answer:
Wave interference occurs for waves of
A) sound.
B) light.
C) water.
D) all of the above
E) none of the above
Answer:
For the following electrolysis reaction:
2 AlOF3
-2 + C → 2 Al + CO2 + F-
Where would the aluminum form?
A) cathode
B) anode
C) in solution
D) Aluminum formation does not happen because electrons do not flow in above
reaction.
E) none of the above
Answer:
Which of the following best describes a two-molar sucrose solution?
A) one liter of solution that contains 2 moles of sucrose
B) one liter of solution that contains 2 moles of water
C) one liter of solution that contains 6.02 1023 molecules of sucrose
D) two liters of solution that contains 1 mole of sucrose
E) one mole of sucrose dissolved in 2 liters of solution
Answer:
A 1-kg ball dropped from a height of 2 m rebounds only 1.5 m after hitting the ground.
The amount of energy converted to heat is about
A) 0.5 J.
B) 1.0 J.
C) 1.5 J.
D) 2.0 J.
E) more than 2.0 J.
Answer:
Spreading centers occur along
A) trenches.
B) transform faults.
C) mid-ocean ridges.
D) the northern and western margins of the Juan de Fuca Plate.
Answer:
When you can't escape being hit by a fast-moving object, you'll suffer a smaller force if
the collision time is
A) long.
B) short.
C) the same way either way
Answer:
The occurrence of earthquakes in the absence of seafloor spreading, oceanic trenches,
or volcanic activity is a characteristic feature of
A) convergent boundaries between plates.
B) divergent boundaries between plates.
C) subduction zones.
D) transform fault boundaries between plates.
Answer:
The star nearest the Earth is
A) the Sun.
B) Alpha Centauri.
C) Polaris.
D) the Moon.
Answer:
A common inactive ingredient in products such as sunscreen lotions and shampoo is
triethyl amine, also known as TEA. Which of the following is the chemical structure for
this compound?
(a) (b) (c) (d)
A) a
B) b
C) c
D) d
Answer:
Plants evolved the ability of photosynthesis during the
A) Cambrian period.
B) Precambrian.
C) Paleozoic era.
D) Pleistocene.
Answer:
What is one of the drawbacks to using fuel cells?
A) The fuel of the fuel cells is hard to handle.
B) They are less efficient than combustion energy sources or batteries.
C) They are very big and bulky, which makes them hard to use in small devices.
D) There are no drawbacks.
E) only A and B
Answer:
The ionosphere is an electrified ion-rich area
A) in the uppermost troposphere.
B) where atoms lose their electrons and are negatively charged.
C) where air density and solar radiation is low.
D) within the uppermost mesosphere and thermosphere.
Answer:
The dominant influence on the length of time a well will produce water is
A) hydraulic conductivity.
B) water supply and demand.
C) hydraulic gradient.
D) aquifer porosity.
Answer:
Metals are relatively more abundant in
A) old stars.
B) new stars.
C) neither in particular
Answer:
Irregularities in Earth's surface influence wind patterns. At night, winds blow from a
region
A) over the ocean toward land.
B) above land toward the ocean.
C) of high pressure to a region of lower pressure.
D) of high pressure (ex: land) to a region of lower pressure (ex: ocean).
Answer:
If the relative mass of a hydrogen atom is 1/4 that of a helium atom, how many
hydrogen atoms would you need to equal the mass of four helium atoms?
A) 16
B) 4
C) 1/4
D) 25
E) 6.022 1023
Answer:
With each pass of a comet about the Sun, its mass
A) is appreciably reduced.
B) remains virtually unchanged.
C) actually increases.
Answer:
If you were to increase the pressure of a gas above a liquid (such as by pressing a piston
above a liquid) what happens?
A) The gas is forced into solution and the solubility increases.
B) The solution is compressed and the gas is forced out of the solvent.
C) The pressure goes down and the gas moves out of the solvent.
D) The pressure goes down and the gas goes into the solvent.
E) The amount of gas in the solution would stay the same.
Answer:
According to Newton, the closer gravitationally interacting objects are to each other, the
A) less the gravitational force between them.
B) more the gravitational force between them.
C) constancy of the force between them.
Answer:
Compared with an empty ship, the same ship loaded with Styrofoam will float
A) higher in the water.
B) lower in the water.
C) at the same level in the water.
Answer:
The fuel most likely to power tomorrow's scooters, forklifts, and busses is
A) hydrogen.
B) helium.
C) lithium.
Answer:
The San Andreas Fault is a transform fault separating the
A) westward moving North American Plate from the eastward moving Pacific ridge.
B) westward moving North American Plate from the southwest moving Pacific Plate.
C) Farallon Plate from the North American Plate.
D) eastern part of California from the Gulf of California.
Answer:
If you blow air between a pair of closely-spaced Ping-Pong balls suspended by strings,
the balls will swing
A) toward each other.
B) apart from each other.
C) away from the airstream.
Answer:
The unit of electric charge, the coulomb, is the charge on
A) one electron.
B) one proton.
C) a specific large number of electrons.
Answer:
"Local observations made in an accelerated frame of reference cannot be distinguished
from observations made in a gravitational field" is known as the principle of
A) equivalence.
B) equality.
C) equanimity.
D) interchangeability.
Answer:
Which of the following molecules would probably be isolated closest to the bottom of a
fractionating tower at a refinery?
A) C4H10
B) C8H18
C) C10H22
D) C20H42
E) C40H82
Answer:
An electric motor and electric generator differ in
A) the roles of input and output.
B) basic construction.
C) size.
D) quality.
Answer:
On which body (other than Earth) is life in our solar system most likely to be found?
A) Mars
B) Venus
C) Europa
D) Scientific evidence suggests that life elsewhere in our solar system is not possible.
Answer:
The process where surface waters are pushed away from the land and replaced by
nutrient-rich bottom waters is called
A) downwelling.
B) upwelling.
C) land breeze.
D) sea breeze.
Answer:
