Round #8 Flashcards
(46 cards)
1) Physical Science – Multiple Choice Which of the following is NOT an example of a
physical change?
W) Water vapor condensing
X) Magnetizing an iron nail
Y) Filing a piece of iron
Z) Iron rusting
ANSWER: Z) IRON RUSTING
1) Physical Science – Short Answer Identify all of the following three substances that are
mixtures: 1) Juice; 2) Air; 3) Granite.
ANSWER: ALL OF THEM
2) Earth and Space – Short Answer An orogeny [or-AW-jeh-nee] results in what type of
geologic structure?
ANSWER: MOUNTAINS
2) Earth and Space – Multiple Choice Which of the following layers of the atmosphere is
closest to earth’s surface?
W) Exosphere
X) Thermosphere
Y) Mesosphere
Z) Stratosphere
ANSWER: Z) STRATOSPHERE
3) Math – Short Answer The rate at which a factory makes boxes is proportional to the square
of the number of people working. If one person produces 6 boxes an hour, how many boxes will
3 people produce in one hour?
ANSWER: 54
3) Math – Short Answer The mean number of weekly work hours for 15 part-time employees
at a store is 17. The mean number of hours for 8 of these employees is 13. To the nearest whole
number, what is the mean number of hours for the rest of the 15 employees?
ANSWER: 22
4) Energy – Short Answer Princeton Plasma Physics Lab-associated scientists are studying
drugs that prevent DNA replication. These drugs are used to treat what group of neoplastic
diseases?
ANSWER: CANCER
4) Energy – Multiple Choice The dynamic turnover of soil microbacteria plays an important
role in long-term carbon sequestration and is being studied by scientists at Argonne National
Lab. Which of the following is NOT a method by which carbon is removed from the soil?
W) Decomposition
X) Surface erosion
Y) Digestion
Z) Leaching into ground water
ANSWER: Y) DIGESTION
5) Life Science – Short Answer In a plant, what is the term for the region of active growth that
contains cells that are actively differentiating?
ANSWER: MERISTEM
5) Life Science – Short Answer What is the term for proteins that act as catalysts?
ANSWER: ENZYMES
6) Earth and Space – Short Answer What is the name of the galaxy in which our solar system
is found?
ANSWER: MILKY WAY
6) Earth and Space – Short Answer Identify all of the planets in the solar system whose
atmospheres are primarily composed of carbon dioxide.
ANSWER: VENUS AND MARS (IN ANY ORDER)
7) Energy – Short Answer Researchers at Argonne National Lab are employing iridium as an
additive to the water-splitting reaction that results in a faster rate of reaction. What role is iridium
playing in this reaction?
ANSWER: CATALYST
7) Energy – Short Answer Researchers at Los Alamos National Lab have developed an
AI-based method that better predicts what catastrophic events that can cause soil liquefaction and
tsunamis?
ANSWER: EARTHQUAKES
8) Math – Short Answer The endpoints of a diameter of a circle have coordinates (3, 4)
and (–5, –2). What are the coordinates of the center of the circle?
ANSWER: (–1, 1) (ACCEPT: x = –1 AND y = 1)
8) Math – Short Answer What is the largest prime factor of 1755?
ANSWER: 13
9) Earth and Space – Multiple Choice A deep-ocean trench can form at which of the following
tectonic plate boundaries?
W) Ocean-ocean divergent
X) Continent-continent convergent
Y) Ocean-continent convergent
Z) Ocean-continent divergent
ANSWER: Y) OCEAN-CONTINENT CONVERGENT
9) Earth and Space – Multiple Choice Which of the following sediment types would make the
best aquiclude?
W) Clay
X) Sand
Y) Gravel
Z) Cobbles
ANSWER: W) CLAY
10) Life Science – Short Answer Order the following four taxonomic ranks from the most
general to the most specific: 1) Phylum [FYE- lum]; 2) Genus; 3) Class; 4) Family.
ANSWER: 1, 3, 4, 2`
10) Life Science – Short Answer What protective sheath encasing neurons is lost in disorders
such as multiple sclerosis or Charcot [shar-KOH]-Marie-Tooth disease?
ANSWER: MYELIN
11) Energy – Short Answer Physicists at Lawrence Berkeley National Lab are studying
distortions in the cosmic microwave background radiation to gain a better understanding of
filaments that do not produce any electromagnetic radiation. Of what are these filaments believed
to be made?
ANSWER: DARK MATTER (DO NOT ACCEPT: DARK ENERGY)
11) Energy – Short Answer Scientists at SLAC National Accelerator Lab used energetic
X-rays to heat water from room temperature to 100,000 degrees Celsius in 75 femtoseconds.
Giving your answer in seconds and in scientific notation, how much time is 75 femtoseconds?
ANSWER: 7.5 × 10-14
12) Physical Science – Short Answer What is the SI derived unit for charge?
ANSWER: COULOMB
12) Physical Science – Short Answer Andrew is standing in the middle of a scaffolding
hanging from a cable at each end such that the tension in each cable is 500 newtons. Andrew
takes a step to the left such that the right cable now has a tension of 330 newtons and the
scaffolding remains at mechanical equilibrium. In newtons, what is the new tension in the left
cable?
ANSWER: 670
