Land and sea breezes result from
A) the Coriolis force.
B) convection cycles.
C) low-pressure areas.
D) high-pressure areas.
Which one of the following is true for deceleration?
A) The acceleration is in the direction opposite the motion.
B) The acceleration is zero.
C) The acceleration is necessarily negative.
D) The velocity remains constant.
Suppose 65 g of reactant A is mixed with 71 g of reactant B. After a chemical reaction
takes place between A and B, which statement is correct?
A) The total mass of products plus any unreacted reactants will be 136 g.
B) The total mass of products plus any unreacted reactants will be less than 136 g.
C) The total mass of products plus any unreacted reactants will be more than 136 g.
D) The total mass of products will be 136 g.
A system of an electron and a neutron has a net charge of
A) +1.6 x 10-19 C.
B) “1.6 x 10-19 C.
C) 3.2 x 10-19 C.
D) zero.
In latitudes where the subsurface layer of soil always remains frozen, the frozen layer is
called
A) an aquifer.
B) the frost table.
C) a glacier.
D) permafrost.
The sharply defined boundary that separates the crust from the mantle is called
______________.
A) the lithosphere
B) the asthenosphere
C) the Mohorovicic discontinuity
D) none of the above.
Which of the following is a carbohydrate?
A) Maltose
B) Glycine
C) Ribonucleic acid
D) Glyceryl tristearate
Increased temperature usually leads to an increase in reaction rate because collisions are
A) more violent only.
B) more frequent only.
C) both more violent and more frequent.
D) none of these
The percentage by mass of chlorine
A) would be the same in FeCl3 as in FeCl2.
B) would be greater in FeCl3 than in FeCl2.
C) would be less in FeCl3 than in FeCl2.
D) cannot be determined without additional information.
Which of the following is a vector quantity?
A) Energy
B) Power
C) Work
D) None of these
The Cenozoic era began about how many million years ago?
A) 65
B) 545
C) 3
D) 245
When a carboxylic acid reacts with an alcohol, the products are water and a(n)
A) aldehyde.
B) ester.
C) salt.
D) amide.
E) ketone.
In the reaction between HCl and Na2CO3, which gas is formed?
A) H2
B) CH4
C) CO2
D) O2
Which of these colors of light has photons of greatest energy?
A) Red
B) Orange
C) Green
D) Yellow
An ac voltage can be increased or decreased easily using a
A) battery.
B) transformer.
C) fuse.
D) motor.
E) generator.
When a carbon atom forms four single bonds, the bonds are at what angle to one
another?
A) 109.5
B) 90
C) 120
D) 23.5
E) 60
Elements in Period 2 of the periodic table have electrons in how many shells?
A) 1
B) 3
C) 4
D) 2
The apparent path that the Sun traces annually along the celestial sphere is known as the
______________.
A) parabolic
B) elliptic
C) ecliptic
D) eclipse
The preferred name for Cl2O7 is
A) chlorine(II) oxide.
B) chlorine oxide.
C) dichlorine heptoxide.
D) chlorine(VII) oxide.
Power is
A) the time rate of doing work.
B) the time rate of doing velocity.
C) the time rate of doing momentum.
D) the time rate of doing force.
The K-T impact is thought to have occurred at what site?
A) Iridium
B) Chicxulub
C) Gubbio
D) Alvarez
The bending of light rays around corners is called
A) reflection.
B) refraction.
C) interference.
D) diffraction.
A mixture of ethanol and gasoline is called
A) ethaline.
B) gasanine.
C) gasohol.
D) gethanine.
Other planetary systems are best detected by the Doppler shifts that change the pattern
of the star’s
A) spectrum.
B) brightness.
C) rotational period.
D) twinkling.
A golfer hits a ball on a level fairway at an angle of 55 relative to the horizontal, and it
lands on the green. Another golfer hits a ball with the same speed but at another angle,
and it lands on the green by the other ball. What was the launch angle for the second
golfer?
A) 35
B) 25
C) 40
D) 45
E) 15
The distance traveled by an automobile moving at a constant velocity is
A) directly proportional to the time.
B) directly proportional to the time squared.
C) inversely proportional to the time squared.
D) inversely proportional to the time.
E) none of these
Consider a wire at rest in a magnetic field as shown in the following figure. What will
happen to the wire?
A) A current will flow in the wire.
B) The wire will be pushed perpendicular to the plane of the magnetic field.
C) The wire will be pushed toward the north pole.
D) Nothing will happen.
What is the largest ocean on Earth?
A) Atlantic
B) Indian
C) Antarctic
D) Mediterranean
E) Pacific
The top of the troposphere is called the
A) stratopause.
B) tropopause.
C) mesopause.
D) thermopause.
The CO molecule would
A) probably be nonpolar.
B) definitely be nonpolar.
C) definitely be polar.
D) probably be polar.
Geology’s best tool for establishing absolute (numerical) geologic time is called
______________ dating.
The Sun is a(n) _______________.
Regions on Earth that have the driest climates are known as ______________.
If aluminum arsenate is AlAsO4, the ionic charge on the arsenate ion must be
______________.
The hollow depression left when a shell or bone is dissolved completely out of a rock is
called a(n) ______________.
When forming ionic compounds, atoms ______________ electrons.
Write 0.000000846 in standard powers-of-10 notation.
The calendar we presently use is the ______________ calendar.
The most modern model of the atom is known as the ______________ model.
The process by which raindrops are formed by the collision of droplets is called
______________.
The photoreceptors responsible for color vision are called ______________.
Black light is a common name for the region of the EMR spectrum known as
______________.
A(n) ______________ is any indication of prehistoric life preserved in rock.
An astronaut on the Moon has the same mass as when on Earth,but has a different
____________.
The planet with the polar “ice caps” of frozen carbon dioxide is ______________.
Use the following to answer questions 73-77:
The latent heat of fusion is the amount of energy per kilogram necessary to go from
point ______________ to point ______________.
What is the purpose of having automobile air bags?
A lens that is thicker at the center than at the edge is called a(n) ______________ lens.
The energy needed to change the phase of a substance is called ______________.
Another name for electric potential difference is ______________.