1) Toss Up - Math - Short Answer
Multiply the following complex numbers, giving your answer in standard form: `(2 + isqrt(2) )(3 - isqrt(2))`
ANSWER: `8 + sqrt(2) i` (accept: `8 + isqrt(2)` )1) Bonus - Math - Short Answer
Simplify the following expression by combining like terms: `12.03A - 4.03B - 0.03(A - 40)`
ANSWER: `12a - 4.03b + 1.2`2) Toss Up - Math - Short Answer
Factor the following expression: `49x^2 - 169y^4`
ANSWER: `(7x + 13y^2)(7x - 13y^2)`2) Bonus - Math - Short Answer
If $1000 is placed in a savings account that pays 6% annual interest compounded semiannually, what is the total amount of money in the account at the end of 1 year, to the nearest dollar?
ANSWER: $1061.00 (Solution: `A = P[1 + (r/n)]^(nt); = $1,000[1 + (0.06/2)]^(2x1) = $1060.90`)3) Toss Up - Astronomy - Short Answer
What element makes up the innermost core of a type II (read as: type 2) supernova just before core collapse?
ANSWER: IRON3) Bonus - Astronomy - Short Answer
What is the magnification of a telescope with an objective lens that has a focal length of 250 centimeters and an eyepiece with a focal length of 0.50 centimeters?
ANSWER: 500X (ACCEPT: 500 or 500 TIMES) (Solution: M = Fo - Fe = 250/0.50 = 500)4) Toss Up - Physics - Multiple Choice
What is the charge of a Z boson, in multiples of the elementary charge?
W) 0
X) 1
Y) -1
Z) 2
4) Bonus - Physics - Short Answer
What is the antiparticle of the Z boson?
ANSWER: Z BOSON (OR ITSELF)5) Toss Up - Biology - Multiple Choice
Schwann's cell theory basically states that:
W) cells are the building blocks of living things
X) cells require oxygen
Y) cells are made of atoms and molecules
Z) cells require nutrients
5) Bonus - Biology - Multiple Choice
Microtubules, intermediate filaments, and microfilaments are integral components of what basic infrastructure of a eukaryotic cell?
W) flagella
X) cillia
Y) cytoskeleton
Z) cell wall
6) Toss Up - Physics - Multiple Choice
Which of the following machines would most likely be used to produce radioisotopes for PET scans?
W) Van der Graff Gen
X) Cyclotron
Y) Nuclear reactor
Z) Cloud Chamber
6) Bonus - Physics - Short Answer
The development of anode rays, also known as canal rays, led to the development of what scientific instrument?
ANSWER: MASS SPECTROMETER7) Toss Up - Physics - Short Answer
What is the name for the process by which the percentage of uranium-235 in uranium ore is increased?
ANSWER: ENRICHMENT7) Bonus - Physics - Short Answer
One awesome method of separating U-235 from U-238 relies upon the differences in electron energy levels. A laser, tuned to just the energy level for U-235, ionizes these atoms which are then collected in a process called AVLIS. AVLIS is an acronym for what?
ANSWER: ATOMIC VAPOR LASER ISOTOPE SEPARATION8) Toss Up - Biology - Multiple Choice
Which of the following tissues is MOST directly responsible for the increased diameter of a tree trunk from year to year:
W) apical meristem
X) pericycle
Y) vascular cambium
Z) pith
8) Bonus - Biology - Short Answer
Name all of the following 3 metabolic processes which directly require oxygen: glycolysis; alcohol fermentation; electron transport system
ANSWER: ELECTRON TRANSPORT SYSTEM9) Toss Up - Chemistry - Short Answer
Which two of the following 5 amino acids contain nonpolar R groups? valine, lysine, arginine, alanine, histidine
ANSWER: Valine, Alanine9) Bonus - Chemistry - Multiple Choice
In addition to the "sniff test", which of the following is a standard laboratory test for a sulfide, such as hydrogen sulfide gas:
W) the gas passed over a filter paper soaked in colorless lead nitrate turns the paper brown
X) when inserted into a flame, a glowing wooden splint bursts into flames
Y) a flame test gives off a deep purple color
Z) paper chromatography
10) Toss Up - Chemistry - Multiple Choice
Which of the following is NOT an example of a chelating (pronounced: KEE-lay-ting) agent:
W) EDTA
X) hemoglobin
Y) chlorophyll
Z) lead
10) Bonus - Chemistry - Short Answer
What is the name of the tarnish resistant alloy of tin and lead which can be hardened by antimony and copper?
ANSWER: PEWTER11) Toss Up - Biology - Short Answer
In what part of photosynthesis, named after its discoverers, is NADPH used to produce 3-carbon sugar phosphate molecules?
ANSWER: CALVIN CYCLE (ACCEPT: CALVIN-BENSON CYCLE or CALVIN-BENSON-BASSHAM CYCLE)11) Bonus - Biology - Short Answer
For every carbon dioxide molecule fixed in the Calvin-Benson cycle, how many NADPH molecules are utilized?
ANSWER: 212) Toss Up - Chemistry - Multiple Choice
Which of the following factors does NOT affect the solubility of a solid in a liquid?
W) Temperature
X) Polarity of solute
Y) Polarity of solvent
Z) Pressure
12) Bonus - Chemistry - Multiple Choice
Which of the following period 3 elements has the smallest atomic radius?
W) Sodium
X) Phosphorus
Y) Chlorine
Z) Aluminum
13) Toss Up - Math - Short Answer
Convert `(2pi)/3` radians into degrees:
ANSWER: 120°13) Bonus - Math - Short Answer
Multiply and simplify the following polynomial expression: `(-2a^2b^3 + 5c)(2a^2b^3 + 5c)`
ANSWER: `25c^2 - 4a^4b^6`14) Toss Up - Physics - Multiple Choice
Ultraviolet photons are released in light that is
W) incandescent.
X) fluorescent.
Y) luminous.
Z) neon.
14) Bonus - Physics - Multiple Choice
The item not associated with fluorescent light is
W) a tungsten filament.
X) a phosphor.
Y) an ultraviolet photon.
Z) a mercury vapor atom.
15) Toss Up - Astronomy - Multiple Choice
The final phase of a star=92s evolution is determined by the star=92s
W) Age
X) Gravitational pull
Y) Density
Z) Mass
15) Bonus - Astronomy - Multiple Choice
the rosette nebula, is sighted as to be within which constellation?
W) Monoceros
X) Hydra
Y) Orion
Z) Canis
16) Toss Up - Chemistry - Short Answer
Determine the oxidation state of each of the elements in the polyatomic ion C2O42-.
ANSWER: CARBON = 3+; OXYGEN = 2-16) Bonus - Chemistry - Multiple Choice
Which of the following 1.0 molar solutions will have the largest change in boiling point from that of pure water?
W) Sodium bromide
X) Magnesium iodide
Y) Sucrose
Z) Potassium phosphate
17) Toss Up - Physics - Multiple Choice
What are the MLT units of the energy density of an electric field?
W) ML/T
X) M^2L/T
Y) ML^2/T
Z) ML^2/T^2
17) Bonus - Physics - Short Answer
An electron enters into a magnetic field and begins to experience helical motion before changing direction in another magnetic field pointing in a new direction. Let R be the radius of the first helix and Z be the radius of the second helix. Assuming the charge of the electron is e and its mass is m, what is the total power dissipated by the magnetic fields as the electron travels through them?
ANSWER: 018) Toss Up - Earth Science - Multiple Choice
Granular, aphanitic and glassy are terms to describe what feature
of an igneous rock?
W) Relief
X) Composition
Y) Texture
Z) Schistocity
18) Bonus - Earth Science - Short Answer
Shales deposited in lakes often exhibit summer and winter layers
that differ in color and texture and can be counted much like growth rings in trees.
What are these layers called?
19) Toss Up - General Science - Short Answer
What neurotransmitter is deficient in Parkinson’s disease?
ANSWER: DOPAMINE19) Bonus - General Science - Multiple Choice
Which of the following is the BEST reason why Parkinson’s disease cannot be treated by simply administering dopamine into the blood stream:
W) dopamine’s blood half-life is too short
X) dopamine will not cross the blood brain barrier
Y) dopamine is the precursor to the real effective transmitter in Parkinson’s disease
Z) it is not known why dopamine will not work if administered directly into the blood
20) Toss Up - Physics - Multiple Choice
What is the moment of inertia around the center of a uniform disk of mass 5 Kg and a radius of 2 m
W) 20 Kg/m^2
X) 40 Kg/m^2
Y) 10 Kg/m^2
Z) 60 Kg/m^2
20) Bonus - Physics - Short Answer
How long will it take a 5 Kg ball thrown from the ground vertically upward at a speed of 10m/s to hit the ground?
ANSWER: 221) Toss Up - Earth And Space - Multiple Choice
Which of the following most accurately describes the dominant air mass over Nebraska in January?
W) Cold, dry, continental
X) Cold, humid, maritime
Y) Warm, dry, continental
Z) Cold, humid, aquatic
21) Bonus - Earth And Space - Short Answer
By name or number, put the following four choices in chronological order from earliest to most recent: 1) occurrence of humans, 2) existence of Pangaea, 3) formation of the Great Lakes, 4) extinction of the dinosaurs.
ANSWER: EXISTENCE OF PANGAEA, EXTINCTION OF DINOSAURS, OCCURRENCE OF HUMANS, FORMATION OF THE GREAT LAKES (ACCEPT: 2, 4, 1,3)22) Toss Up - Math - Short Answer
Add the following rational expressions and give your answer in fully factored form: `x/(x+2) + 4x/(x-6)`
ANSWER: `x(5x+2) / (x-6)(x+2)`22) Bonus - Math - Short Answer
What are the coordinates of the vertex in the graph of the following equation: `y = 4x^2 + 8x - 5`
ANSWER: (-1, -9)23) Toss Up - Physics - Multiple Choice
The quantity "stress" expressed in terms of the fundamental quantities (mass, length, time) is equivalent to
W) MLT-1 (read as: M L T to the minus one power)
X) ML-1T-2 (read as: M L to the minus one power T to the minus two power)
Y) M2L-1T-3 (read as: M to the second L to the minus one power T to the minus three power)
Z) a dimensionless quantity
23) Bonus - Physics - Multiple Choice
The quantity "strain" expressed in terms of the fundamental quantities (mass, length, time) is equivalent to:
W) MLT-1 (read as: M L T to the minus one power)
X) ML-1T-2 (read as: M L to the minus one power T to the minus two power)
Y) M2L-1T-3 (read as: M to the second L to the minus one power T to the minus three power)
Z) a dimensionless quantity
24) Toss Up - Physics - Multiple Choice
When current runs through wire wrapped around an iron nail, the magnetic field inside the solenoid is larger than it normally would be without the iron because
W) iron is denser than air
X) iron conducts electricity
Y) iron is paramagnetic
Z) iron is ferromagnetic
24) Bonus - Physics - Multiple Choice
For a given solenoid, if the loop density is doubled and the current is halved, the resulting magnetic field inside is what factor of the original?
W) 1/2
X) 1
Y) 2
Z) 4
25) Toss Up - Math - Short Answer
What is the equation of a line that has a slope of 4 and a_y-intercept of 5?
ANSWER: y = 4x + 525) Bonus - Math - Short Answer
Factor the following expression as completely as possible: `x^4 - 16`
ANSWER: `(x - 2)(x + 2)(x^2 + 4)`