Round #9 Flashcards
(46 cards)
1) Physical Science – Short Answer A kilocalorie equals 4,184 of what SI derived unit for
energy?
ANSWER: JOULE
1) Physical Science – Short Answer Identify all of the following three reactions that are
exothermic: 1) Burning gasoline; 2) Water vapor condensing; 3) Melting ice.
ANSWER: 1, 2
2) Math – Short Answer What is the log base 5 of 1/25?
ANSWER: –2
2) Math – Short Answer Solve the following equation for x over the negative integers:
x4 – 28x2 + 75 = 0
ANSWER: –5
3) Energy – Short Answer Scientists at Oak Ridge National Lab are studying how plants
respond to extreme weather events, like heat waves. In times of high ambient temperature, plants
will close stomata [stow-MAH-tah] to conserve what?
ANSWER: WATER (ACCEPT: H2O)
3) Energy – Short Answer Scientists at Idaho National Lab are developing new methods to
quickly charge electric vehicles. What type of battery, the most common used in modern electric
vehicles, is being charged?
ANSWER: LITHIUM-ION (ACCEPT: LI-ION, LIB)
4) Earth and Space – Multiple Choice Which of the following will be the next stage in the
evolution of the Sun?
W) Supernova
X) Red giant
Y) Stellar nebula
Z) White dwarf
ANSWER: X) RED GIANT
4) Earth and Space – Multiple Choice An astronomer is observing a gas cloud and notes
several infrared spectral lines. These spectral lines could allow the astronomer to infer what?
W) The elemental composition of the cloud
X) The chemical bonds present in the cloud
Y) The rate of collision of the molecules in the cloud
Z) The ionization state of the atoms in the cloud
ANSWER: X) THE CHEMICAL BONDS PRESENT IN THE CLOUD
5) Physical Science – Short Answer What is the adjective for the type of interference that
occurs when two waves cancel each other out?
ANSWER: DESTRUCTIVE
5) Physical Science – Short Answer Identify all of the following three statements that are true
of the astronauts aboard the International Space Station: 1) They are massless; 2) They are in
free-fall; 3) They experience Earth’s gravity.
ANSWER: 2 AND 3
6) Life Science – Multiple Choice Which of the following animals has been observed to
communicate via a dance language, including maneuvers such as the waggle dance?
W) Chimpanzee
X) Peacock
Y) Honeybee
Z) Hyena
ANSWER: Y) HONEYBEE
6) Life Science – Multiple Choice Which of the following is a major function of the large
intestine?
W) Mechanically breaking down food
X) Chemically breaking down food
Y) Absorbing nutrients
Z) Absorbing water
ANSWER: Z) ABSORBING WATER
7) Math – Short Answer How many integers are there from –8 to 5, inclusive?
ANSWER: 14
7) Math – Short Answer What is the area of a rhombus with diagonals of length 24 and 28?
ANSWER: 336
8) Life Science – Short Answer A stroke is most commonly caused when blood flow is cut off
in what organ in the body?
ANSWER: BRAIN
8) Life Science – Multiple Choice To what phylum [FYE- lum] does baker’s yeast belong?
W) Ascomycota [az-koh-my-KOH-dah]
X) Basidiomycota [bah-sid-ee-oh-my-KAW-dah]
Y) Zygomycota [zye-go-my-KAW-dah]
Z) Glomeromycota [glo-mair-oh-my-KAW-dah]
ANSWER: W) ASCOMYCOTA
9) Earth and Space – Multiple Choice The Eurasian plate and the Indian plate meet at what
type of plate boundary?
W) Divergent
X) Ocean-ocean convergent
Y) Ocean-continent convergent
Z) Continent-continent convergent
ANSWER: Z) CONTINENT-CONTINENT CONVERGENT
9) Earth and Space – Short Answer Identify all of the following three quantities that typically
decrease in a stream from headwaters to mouth: 1) Water velocity; 2) Water discharge; 3) Stream
channel width.
ANSWER: NONE OF THEM
10) Math – Short Answer What is 40% of 50 plus 40% of 40?
ANSWER: 36
10) Math – Short Answer What is the surface area of a regular square pyramid with slant
height 4 whose base has sides of length 7?
ANSWER: 105
11) Physical Science – Multiple Choice Which of the following is closest to the distance, in
meters, between the electron and proton in the neutral hydrogen atom?
W) 10 –16
X) 10 –13
Y) 10 –10
Z) 10 –7
ANSWER: Y) 10 –10
11) Physical Science – Short Answer You take an object and reduce its absolute temperature
in half. To the nearest degree Celsius, what temperature will the object approach if you
repeatedly perform this procedure?
ANSWER: –273
12) Energy – Multiple Choice Scientists at the DOE Ames Research Laboratory have been
using advanced TEM to map nanocrystal magnetic fields formed in bacteria in liquids. What
mineral is present in these bacteria?
W) Gypsum
X) Magnetite
Y) Calcite
Z) Mica [MY-kah]
ANSWER: X) MAGNETITE
12) Energy – Short Answer Researchers at Oak Ridge National Lab are using new methods to
study proteins that are soluble in water but cannot be crystallized. All such flexible proteins fall
into what larger class of proteins that often have spherical shapes and usually have functional
roles within the cell?
ANSWER: GLOBULAR PROTEINS (ACCEPT: SPHEROPROTEINS)
