Sample Set 1 - Round 7 Flashcards
Created by Rishabh Yadav
PHYSICAL SCIENCE Multiple Choice Which of the following laws most directly limits the
ability of a simple machine to an efficiency of 100% or lower:
W) Hooke’s law
X) law of equal proportions
Y) the first law of motion
Z) the law of conservation of energy
ANSWER: Z) THE LAW OF CONSERVATION OF ENERGY
PHYSICAL SCIENCE Short Answer To the first decimal place, what is the ideal mechanical
advantage of a lever with a resistance arm of 200 centimeters and an effort arm of 3.4 meters?
ANSWER: 1.7
(Solution: MA = EA/RA = 340/200 = 1.7)
EARTH SCIENCE Multiple Choice Which of the following characteristics is most commonly
associated with a tsunami wave as opposed to a normal ocean wave in the open ocean:
W) period of 5 seconds
X) wavelength of 300 miles
Y) speed of 50 miles per hour
Z) motion of only the uppermost layer of water
ANSWER: X) WAVELENGTH OF 300 MILES
EARTH SCIENCE Multiple Choice Which of the following is a true tidal wave:
W) tsunami
X) tidal bore
Y) rip current
Z) tidal range
ANSWER: X) TIDAL BORE
MATH Short Answer Divide x
^5 by x^3 and simplify:
ANSWER: x
^2
MATH Short Answer Evaluate the following and give your answer as a mixed fraction in lowest
terms: 9.5-5.4
ANSWER: 4 and 1/10
GENERAL SCIENCE Multiple Choice Which of the following does the prefix endo (spell out
the letters e, n, d, o) mean, as in the word endoscope:
W) under
X) dark
Y) inside
Z) invisible
ANSWER: Y) INSIDE
GENERAL SCIENCE Short Answer Arrange the following 3 choices in order of INCREASING
speed: 3 feet per minute; 5 yards per minute; 30 yards per hour
30 YARDS PER HOUR; 3 FEET PER MINUTE; 5 YARDS PER MINUTE
LIFE SCIENCE Multiple Choice Which of the following anatomical structures do sharks NOT
possess:
W) gill covers or opercula
X) lateral lines
Y) cartilaginous skeletons
Z) livers
W) GILL COVERS OR OPERCULA
LIFE SCIENCE Short Answer What scientist is sometimes considered the father of genetics
because of his extensive studies on the patterns of inheritance?
GREGOR MENDEL (ACCEPT: MENDEL)
PHYSICAL SCIENCE Multiple Choice What is the mass of an electron:
W) about the same as a proton
X) about ½ as much as a proton
Y) about 1/1,800th of a proton
Z) electrons have no mass
ANSWER: Y) ABOUT 1/1,800TH OF A PROTON
PHYSICAL SCIENCE Short Answer A 10,000-newton car is on the top floor of a parking
garage 25 meters above the ground. Relative to the ground, what is the gravitational potential
energy, in joules, of the car?
ANSWER: 250,000 (ACCEPT: 2.5 × 105
)
(Solution: PS = 10,000 N × 25 m = 250,000 J)
EARTH SCIENCE Multiple Choice Streams running off the terminus of glaciers have a high
bed load and easily erodible banks, typically forming which of the following types of stream
patterns:
W) meandering
X) oxbow
Y) braided
Z) back swamp
ANSWER: X) BRAIDED
EARTH SCIENCE Multiple Choice Which of the following is similar to a delta but forms when
a steep mountain stream spreads out from a mountain canyon onto a flat, broad valley:
W) alluvial fan
X) levee
Y) playa
Z) flood plain
ANSWER: W) ALLUVIAL FAN
MATH Short Answer Solve the following equation for x: 15x + 8x – 3x = 120
ANSWER: 6
Short Answer Divide
9/5 by 5/3 and give your answer as a proper fraction in lowest terms:
ANSWER: 25/27
GENERAL SCIENCE Multiple Choice Which of the following BEST describes the SI unit
called the Newton:
W) a unit of power
X) a unit of force
Y) a unit of work
Z) a unit of energy
ANSWER: X) A UNIT OF FORCE
GENERAL SCIENCE Short Answer Rounded to the nearest whole number, how many meters
per second is equal to 40 kilometers per hour?
ANSWER: 11
LIFE SCIENCE Short Answer How many phalanges are in a human thumb?
ANSWER: 2
LIFE SCIENCE Multiple Choice Which of the following terms is most often used to describe a
biochemical reaction where the forward reaction is at the same rate as the reverse reaction:
W) isothermic
X) isotropic
Y) equilibrium
Z) homeotropic
ANSWER: Y) EQUILIBRIUM
PHYSICAL SCIENCE Multiple Choice Alkali metals all have the same:
W) number of electrons in their outer shells
X) atomic radii
Y) electronegativities
Z) melting points
ANSWER: W) NUMBER OF ELECTRONS IN THEIR OUTER SHELLS
PHYSICAL SCIENCE Multiple Choice Which of the following liquids at room temperature
and 1 atmosphere would have the GREATEST surface tension:
W) distilled water
X) ethanol
Y) methanol
Z) acetone
ANSWER: W) DISTILLED WATER
EARTH SCIENCE Multiple Choice Which of the following most likely formed a U-shaped
valley:
W) glacial erosion
X) mountain stream erosion
Y) wind erosion
Z) deforestation
ANSWER: W) GLACIAL EROSION
EARTH SCIENCE Multiple Choice Which of the following gives glacial meltwater a quality
which is commonly described as glacial milk:
W) ice crystals in the water
X) the abundance of trapped air
Y) large amounts of suspended material
Z) the abundance of cyanobacteria
ANSWER: Y) LARGE AMOUNTS OF SUSPENDED MATERIAL
MATH Short Answer Name all of the following 3 statements which are always TRUE:
1) a square is a regular polygon
2) an equilateral triangle is equiangular
3) a scalene triangle has 2 sides of equal length
ANSWER: 1 AND 2
MATH Multiple Choice Which of the following is evenly divisible by each of the counting
numbers 1 through 8:
W) 360
X) 1,250
Y) 1,800
Z) 2,520
ANSWER: Z) 2,520
GENERAL SCIENCE Multiple Choice Which of the following instruments consists of a
weighted glass tube or bulb, which is floated in a liquid to measure the liquid’s relative density:
W) hydrometer
X) hypsometer
Y) densitometer
Z) sensometer
ANSWER: W) HYDROMETER
GENERAL SCIENCE Short Answer Identify each of the following 3 materials as derived from
a plant or animal source, respectively: lanolin; silk; jute
ANSWER: LANOLIN = ANIMAL; SILK = ANIMAL; JUTE = PLANT
LIFE SCIENCE Multiple Choice In which of the following areas of the human body is the
frontal bone found:
W) pelvis
X) spine
Y) shoulder
Z) head
ANSWER: Z) HEAD
LIFE SCIENCE Multiple Choice In which of the following areas of the human body is the
ileum bone found:
W) pelvis
X) wrist
Y) shoulder
Z) head
ANSWER: W) PELVIS
PHYSICAL SCIENCE Multiple Choice Which of the following chemical formulas gives an
indication of the arrangement of atoms and bonds in a chemical compound:
W) empirical
X) molecular
Y) structural
Z) polyatomic
ANSWER: Y) STRUCTURAL
PHYSICAL SCIENCE Short Answer How many total atoms are in any one molecule of
Epsom salts, or MgSO4*7H2O (read as: Mg, S, O, 4, dot, 7, H, 2, O)
ANSWER: 27
EARTH SCIENCE Multiple Choice Which of the following is made of microcrystalline quartz
and is very hard and compact:
W) gypsum
X) chalk
Y) limestone
Z) chert
ANSWER: Z) CHERT
EARTH SCIENCE Multiple Choice Which of the following is NOT true of geodes:
W) they occur in sedimentary and certain volcanic rocks
X) they look like ordinary rocks from the outside
Y) their exterior is typically made up of limestone
Z) they are not found in the U.S.
ANSWER: Z) THEY ARE NOT FOUND IN THE U.S.
MATH Short Answer Give the numerical value of 8 factorial divided by 8 factorial:
ANSWER: 1
MATH Short Answer Evaluate the following expression: 10 + [8 + (2 – 10)] (read as: 10 plus,
open bracket, 8 plus, open parenthesis, 2 minus 10, close parenthesis, close bracket)
ANSWER: 10
GENERAL SCIENCE Multiple Choice Which of the following is the study of bees:
W) herpetology
X) apiology
Y) ichthyology
Z) ornithology
ANSWER: X) APIOLOGY
GENERAL SCIENCE Multiple Choice Which of the following is CLOSEST to the height, in
meters, of a person who is 4 feet and 11 inches tall:
W) 1.2
X) 1.5
Y) 1.8
Z) 2.2
ANSWER: X) 1.5
(Solution: (59 in)(2.54 cm/in)(1 m/100 cm) = 1.49 m)
LIFE SCIENCE Short Answer In what organelle do parenchymal (read as: PAR-en-KYM-al)
cells store most of a plant’s cellular fluid?
ANSWER: VACUOLE
LIFE SCIENCE Short Answer Name all of the following 3 groups of plants that have no
xylem: mosses; ferns; conifers
ANSWER: MOSSES
PHYSICAL SCIENCE Multiple Choice Which of the following is generally NOT true:
W) the boiling point of water decreases with increased altitude on Earth
X) the melting point of table salt is much higher than that of glucose
Y) radon is radioactive
Z) metals react with nonmetals to form new metals
ANSWER: Z) METALS REACT WITH NONMETALS TO FORM NEW METALS
PHYSICAL SCIENCE Short Answer What is the percent efficiency, rounded to the nearest
whole number, of a simple machine that requires 600 joules of energy input to achieve 400 joules of
energy output?
ANSWER: 67
(Solution: 400/600 = 0.67 × 100 = 67%)
EARTH SCIENCE Multiple Choice Which of the following most likely made the trip from
Europe to the New World possible for early sailors:
W) the westerlies
X) the trade winds
Y) the doldrums
Z) the jet stream
ANSWER: X) THE TRADE WINDS
EARTH SCIENCE Multiple Choice Which of the following is a dark gray, low cloud
associated with continuous falling rain:
W) altocumulus
X) stratocumulus
Y) cumulus humilis
Z) nimbostratus
ANSWER: Z) NIMBOSTRATUS
MATH Short Answer Evaluate
y/x when x = 0 and y = –8:
ANSWER: 0
MATH Short Answer Jill has $2.25 consisting of U.S. dimes and quarters. If she has 5 more
dimes than quarters, how many dimes and quarters, respectively, does she have?
ANSWER: DIMES = 10; QUARTERS = 5
GENERAL SCIENCE Short Answer What is the common term for the most accepted theory
on how the universe came into being?
ANSWER: BIG BANG
GENERAL SCIENCE Short Answer What letter is most often used by scientists as a symbol
for light or the speed of light?
ANSWER: C
LIFE SCIENCE Short Answer What glands of the human body are most responsible for
producing what is sometimes called the stress hormone cortisol?
ANSWER: ADRENALS (ACCEPT: ADRENAL CORTEX)
LIFE SCIENCE Short Answer Name all of the following 3 choices that are common functions
of feathers on birds: thermal insulation; sexual selection; flight
ANSWER: ALL
