Round #3 Flashcards
(50 cards)
1) MATH Short Answer What is the x-intercept of the graph with equation y = 7?
ANSWER: THERE IS NONE
1) MATH Multiple Choice If a line passes through point (1, 6) and has a slope of 4, which of the
following is the equation of the line?
W) x = 2y + 4
X) x = 4y + 2
Y) y = 4x + 2
Z) y = 2x + 4
ANSWER: Y) y = 4x + 2
2) PHYSICAL SCIENCE Multiple Choice Which of the following does NOT correctly describe
force in the context of a moving object?
W) It is a vector
X) It has a magnitude
Y) It is dependent on mass
Z) It is independent of acceleration
ANSWER: Z) IT IS INDEPENDENT OF ACCELERATION
2) PHYSICAL SCIENCE Short Answer Identify the following three elements as a metal,
metalloid and nonmetal, respectively: silicon, sodium, neon.
ANSWER: METAL = SODIUM; METALLOID = SILICON; NONMETAL = NEON
3) GENERAL SCIENCE Multiple Choice All chordates [KAWR-dayts] possess which of the
following?
W) A notochord
X) A spinal cord
Y) Lungs
Z) A four-chambered heart
ANSWER: W) A NOTOCHORD
3) GENERAL SCIENCE Short Answer Identify all of the following four parties who know which
subjects are in which treatment groups in a double blind study involving human subjects: 1) the
subjects, 2) the investigators who carry out the study, 3) the investigators who plan the study, 4)
the statisticians who analyze the data.
ANSWER: 4 (ACCEPT: THE STATISTICIANS WHO ANALYZE THE DATA)
4) EARTH AND SPACE Multiple Choice Most gemstones belong to what class of minerals?
W) Phosphates
X) Oxides
Y) Carbonates
Z) Silicates
ANSWER: Z) SILICATES
4) EARTH AND SPACE Multiple Choice A supraglacial lake would be located at which of the
following locations?
W) Underneath a glacier
X) On top of a glacier
Y) In the moraine of a retreating glacier
Z) At the glacier terminus
ANSWER: X) ON TOP OF A GLACIER
5) LIFE SCIENCE Short Answer What is the term for a heritable change in the character of a
gene or a change in the sequence of base pairs in a DNA molecule?
ANSWER: MUTATION
5) LIFE SCIENCE Multiple Choice Which of the following will most likely reduce genetic
variation in a population?
W) Disruptive selection
X) Directional selection
Y) Stabilizing selection
Z) Genetic drift
ANSWER: Y) STABILIZING SELECTION
6) ENERGY Multiple Choice A proton exchange membrane fuel cell exchanges which of the
following ions?
W) OH
X) Cl
Y) H+
Z) Al
ANSWER: Y) H+
6) ENERGY Short Answer What two states together account for approximately one fifth of the
nation’s nuclear power generation?
ANSWER: ILLINOIS AND PENNSYLVANIA
7) MATH Short Answer Providing your answer as a mixed number, what is 1 3
4
+ 2 7
8
?
ANSWER: 4 5/8
7) MATH Short Answer For what value of k does kx + 7y = 10 have a slope of 3?
ANSWER: -21
8) PHYSICAL SCIENCE Multiple Choice Which of the following elements would be expected to
have the most polar bond when bonded with oxygen?
W) Sulfur
X) Fluorine
Y) Hydrogen
Z) Nitrogen
ANSWER: Y) HYDROGEN
8) PHYSICAL SCIENCE Short Answer Identify all of the following four choices that are
electrically neutral: 1) gamma rays, 2) positrons, 3) alpha particles, 4) beta particles.
ANSWER: 1 (ACCEPT: GAMMA RAYS)
9) GENERAL SCIENCE Multiple Choice Sharks and salmon have evolved different adaptations.
Which of the following statements is true?
W) Sharks lay eggs while salmon give birth to live young
X) Sharks have cartilaginous [kahr-tl-AJ-uh-nuhs] skeletons while salmon have bony
skeletons
Y) Salmon possess gills while sharks do not
Z) Sharks possess opercula while salmon do not
ANSWER: X) SHARKS HAVE CARTILAGINOUS SKELETONS WHILE SALMON HAVE BONY
SKELETONS
9) GENERAL SCIENCE Short Answer What inner planet of our solar system is known for its
clouds of sulfuric acid and sulfur dioxide?
ANSWER: VENUS
10) EARTH AND SPACE Multiple Choice Which of the following rocks has both high porosity
and high permeability?
W) Claystone
X) Sandstone
Y) Granite
Z) Marble
ANSWER: X) SANDSTONE
10) EARTH AND SPACE Short Answer As a result of pressure, the melting point of glacial ice is
known to decrease 0.7° Celsius per kilometer of depth. Providing your answer in kilometers to
the nearest tenth, at what depth will a glacier begin to melt if it has a constant temperature of -2°
Celsius?
ANSWER: 2.9
11) LIFE SCIENCE Multiple Choice Angiosperms [AN-jee-uh-spurms] are plants that do what?
W) Reproduce exclusively by spores
X) Have flowers and fruits
Y) Parasitize other plants
Z) Produce seeds, but not flowers
ANSWER: X) HAVE FLOWERS AND FRUITS
11) LIFE SCIENCE Short Answer A student electrophoreses a sample of restriction-digested
DNA. Upon staining, four distinct bands appear on the gel: A – 1500 base pairs, B – 2000 base
pairs, C – 1000 base pairs, and D – 3000 base pairs. Based on the size of the restriction
fragments, in what order do the bands appear on the gel, starting from the band closest to the
well?
ANSWER: D, B, A, C
12) ENERGY Short Answer If 6 amperes of current flow through a 5 ohm resistor, what is the
voltage across the resistor?
ANSWER: 30
12) ENERGY Multiple Choice Approximately how many days could a single person be fed from
the corn needed to produce enough 100% ethanol to fuel a single SUV?
W) 34
X) 234
Y) 365
Z) 1089
ANSWER: Y) 365
