1) Toss Up - Chemistry - Multiple Choice
According to VSEPR bonding theory, if 2 of the bonded atoms in an octahedral molecule are replaced by 2 electron pairs, the molecule will assume what geometric shape, such as in XeF4:
W) linear
X) trigonal bipyramidal
Y) square planar
Z) square pyramidal
1) Bonus - Chemistry - Multiple Choice
According to VSEPR bonding theory, if one of the bonded atoms in a trigonal bipyramidal molecule is replaced by 2 electron pairs, the molecule will assume what geometric shape, such as in ClF3:
W) t-shaped
X) see-saw
Y) linear
Z) bent
2) Toss Up - Earth And Space - Multiple Choice
Thermohaline [thuhr-moh-HAY-lyn] circulation in the ocean is controlled most by which of the following?
W) Temperature and pressure
X) Temperature and salinity
Y) Salinity and precipitation
z) Salinity and sea ice formation
2) Bonus - Earth And Space - Multiple Choice
Why did Charles Keeling’s carbon dioxide graphs show an up and down pattern each year?
W) More carbon dioxide was generated by heating processes during the winter
X) The air is denser in the winter, causing carbon dioxide to become diluted
Y) Carbon dioxide is absorbed during the growth season and released through decay during the fall and winter
Z) Warmer summer continents release more carbon dioxide than during colder winters
3) Toss Up - Earth Science - Multiple Choice
In the soil profile, which horizon is know as the zone of accumulation:
W) A-horizon
X) B-horizon
Y) O-horizon
Z) E-horizon
3) Bonus - Earth Science - Short Answer
The doldrums are to 0° latitude, as the horse latitudes are to what?
ANSWER: 30° (ACCEPT: 30° NORTH OR SOUTH LATITUDE)4) Toss Up - Chemistry - Multiple Choice
Which of the following gases has the highest effusion rate through a pinhole opening from one compartment to another and at room temperature:
W) argon
X) CO2
Y) SO2
Z) helium
4) Bonus - Chemistry - Short Answer
The f subshell is associated with what L quantum number?
ANSWER: 35) Toss Up - Physics - Multiple Choice
In an isovolumetric process by an ideal gas, the system's heat gain is proportional to a change in
W) mass
X) volume
Y) pressure
Z) internal energy
5) Bonus - Physics - Multiple Choice
When I stand half way between two speakers, with one on my left and one on my right, a musical note from the speakers gives me constructive interference. How far to my left should I move to obtain destructive interference?
W) one fourth of a wavelength
X) half a wavelength
Y) one wavelength
Z) one and a half wavelengths
6) Toss Up - Physics - Short Answer
What is the term for the 'wobbling', or turning of the spinning axis, of a spinning top or gyroscope when an appropriate torque is applied?
ANSWER: PRECESSION6) Bonus - Physics - Multiple Choice
What force causes the precession of a spinning top?
W) the force of gravity upon the center of mass
X) the normal force at the point of contact on the ground
Y) the friction created by the spinning top's point
Z) the air resistance created by the spinning top's body
7) Toss Up - Math - Short Answer
What is the only regular polyhedron that will completely fill space?
ANSWER: CUBE (ACCEPT: HEXAHEDRON)7) Bonus - Math - Short Answer
Of 1000 computer owners surveyed, it was found that 800 people owned a computer with a built-in CD drive, 230 owned one with a built-in DVD drive, and 100 owned a computer with both CD and DVD drives. How many people do not own a computer with a CD OR DVD-drive?
ANSWER: 708) Toss Up - Math - Short Answer
Simplify the following expression: `x^(1/2) x^(2/5)`
ANSWER: `x^(9/10)` (ACCEPT: `root10(x^9)`)8) Bonus - Math - Short Answer
What is the slope of a line perpendicular to the line given by the graph of the equation, `-5x = -6y + 4`
ANSWER: `-6/5`9) Toss Up - Physics - Short Answer
What law dictates the magnetic field produced by current?
ANSWER: AMPERE’S LAW9) Bonus - Physics - Short Answer
A wire is pointing straight towards you, with current flowing towards you as well. The magnetic field produced is W) pointing radially outward from the wire X) pointing radially inward from the wire Y) circling the wire, clockwise Z) circling the wire, counterclockwise
ANSWER: Z) CIRCLING THE WIRE, COUNTERCLOCKWISE10) Toss Up - Math - Short Answer
What is the slope-intercept form of the equation of the line that is tangent to the circle with equation `x^2 + y^2 = 25` at the point (-3, 4)?
ANSWER: y = (3/4)x + 25/410) Bonus - Math - Multiple Choice
Given the two sequences `s_1` with nth term `2/(n+6)` and `s_2` with nth term `n/(5+n)`, which of the following statements is correct?
W) `s_1` and `s_2` are both increasing
X) `s_1` is increasing and `s_2` is decreasing
Y) `s_1` is decreasing and `s_2` is increasing
Z) `s_1 and `s_2` are both decreasing
11) Toss Up - Math - Short Answer
Find the sum of the squares of all roots of the polynomial `x^5 - 3x^3 + 5x^2 + 6x + 7`.
ANSWER: 611) Bonus - Math - Short Answer
Find the product of the real roots of the polynomials `x^4 + x^2 - 2`.
ANSWER: -112) Toss Up - Physics - Short Answer
What is the underwater pressure in atmospheres in a fresh water lake at a depth of 20 meters?
ANSWER: 312) Bonus - Physics - Short Answer
What is the resonant frequency, in hertz to the nearest whole number, of a three-component series circuit that has a 2 henry inductor, a 2 microfarad capacitor, and a 2 ohm resister?
ANSWER: 8013) Toss Up - Chemistry - Multiple Choice
Which of the following is a chemical property of iron?
W) occurs in an abundance of 4.7% in the earth's crust
X) melts at 1535 degrees C
Y) attracted to a magnet
Z) rusts when exposed to moist air
13) Bonus - Chemistry - Short Answer
63.55 is the atomic weight of what element?
ANSWER: COPPER (Cu)14) Toss Up - Math - Short Answer
A jar of 100 marbles contains only 2 colors of marbles, red and blue. If there are 13 red marbles for every 12 blue marbles, how many blue marbles are in the jar?
ANSWER: 4814) Bonus - Math - Short Answer
Solve the following inequality for `x`: `|3 - 2x| <= 7` (read as: the absolute value of, 3 minus 2x, close absolute value, is less than or equal to 7)
ANSWER: `-2 <= x <= 5` (ACCEPT: `5 >= x >= -2`)15) Toss Up - Chemistry - Multiple Choice
Sodium is a highly malleable substance whereas sodium chloride is not. Which of the following is the LEAST likely explanation:
W) sodium is metallic
X) in sodium chloride, the ionic forces are strong
Y) in sodium, atoms can move without any specific bonds being broken
Z) in sodium chloride, the ions are arranged in very irregular arrays
15) Bonus - Chemistry - Multiple Choice
Which of the following is the strongest form of magnetism:
W) ferromagnetism
X) paramagnetism
Y) diamagnetism
Z) trimagnetism
16) Toss Up - Physics - Short Answer
At one atmosphere, 11 calories of heat are quickly added to 1 gram of water that begins at 90 degrees Celsius. What is its final temperature?
ANSWER: 100 DEGREES CELSIUS16) Bonus - Physics - Multiple Choice
What type of image is formed when an object is placed behind the focus of a concave mirror?
W) real and inverted
X) real and erect
Y) virtual and inverted
Z) virtual and erect
17) Toss Up - Chemistry - Multiple Choice
Which of the following has an empirical formula that is different from its molecular formula?
W) C2H6O2
X) HSO4
Y) K2CO3
Z) N2O3
17) Bonus - Chemistry - Short Answer
What is the name of the Law that says that at equilibrium, the amount of gas dissolved in a liquid at a given temperature is proportional to the partial pressure of the gas above the liquid?
ANSWER: HENRY’S LAW18) Toss Up - General Science - Multiple Choice
What kind of program was developed to allow the user to store, modify, organize and display data in a meaningful form:
W) firmware
X) database
Y) graphics
Z) word processing
18) Bonus - General Science - Multiple Choice
How much data can be transmitted at once in typical parallel communications:
W) 1 bit
X) 4 bits
Y) 1 byte
Z) 1 kilobyte
19) Toss Up - General Science - Multiple Choice
Which of the following would be a measurement of a typical printer’s resolution:
W) 0.25 millimeters
X) 300 dpi
Y) 640 X 480 (pronounced: 640 BY 480)
Z) 200 RSU
19) Bonus - General Science - Multiple Choice
The ARPANET was an example of a:
W) telephone network
X) LAN
Y) WAN
Z) email address
20) Toss Up - Biology - Short Answer
What specific physical state does Bacillus anthracis form that allows it to survive in an exposed environment for decades?
ANSWER: SPORE (ACCEPT: ENDOSPORE)20) Bonus - Biology - Short Answer
In apoptosis, what is programmed into the cell:
ANSWER: DEATH (ACCEPT: CELL DEATH)21) Toss Up - Chemistry - Multiple Choice
Dr. Ecniecs, the evil genius, has released multiple dangerous weather balloons into the atmosphere, filled with his new concoction - Boomgas! If the density of Boomgas drops below one third of its density at room temperature, it will explode with the force of 1/10‘h of an atomic bomb. Which of the following disposal methods would force the balloons to explode?
W) Throwing weighted balloons into the sea
X) Releasing the balloons into space
Y) Cryogenically storing the balloons in liquid nitrogen z) Venting Boomgas from the balloons
21) Bonus - Chemistry - Multiple Choice
Consider the following reaction: 5H2O(lj+ S2O32- + 4Cl2 ^aq) ^ [yields] 8Cl"(aq) + 2SO42"(aq) + 10H+. What is the oxidizing agent in this reaction?
W) Cl-
X) S2O32-
Y) Cl2
Z) H2O
22) Toss Up - Earth Science - Multiple Choice
Which of the following minerals is used as the primary
ore of aluminum:
W) bauxite
X) galena
Y) magnetite
Z) hematite
22) Bonus - Earth Science - Multiple Choice
Which of the following geological periods is youngest?
W) Cambrian
X) Jurassic
Y) Tertiary
Z) Devonian
23) Toss Up - Math - Short Answer
If the height of a cone is equal to the diameter of its base, express the volume of the cone in terms of its radius r and as a fraction in terms of pi.
ANSWER: `(2/3) pir^3` (ALSO ACCEPT: `2pir^3/3`)23) Bonus - Math - Multiple Choice
Which of the following is the volume of the solid created by revolving the area bounded by semicircle `y = sqrt(16 - (x-4)^2)` [y equals the square root of open bracket 16 minus open parenthesis x minus 4 close parenthesis squared close brackets] and the x-axis around the x-axis?
W) `16pi`
X) `64pi/3`
Y) `64pi`
Z) `256pi/3`
24) Toss Up - Earth Science - Short Answer
Magma that reached the Earth’s surface is called:
ANSWER: LAVA24) Bonus - Earth Science - Short Answer
On the day of the summer solstice in the Southern Hemisphere, the sun can be seen directly overhead at what location around the globe?
ANSWER: TROPIC OF CAPRICORN (ACCEPT: 23.5 ° SOUTH OF THE EQUATOR)25) Toss Up - Chemistry - Multiple Choice
Which of the following statements is true of the compression of a system?
W) Work is done on the system, and dV and dw are greater than 0
X) Work is done on the system, dV is less than 0, and dw is greater than 0
Y) Work is done by the system, dV is greater than 0, and dw is less than 0 z) Work is done by the system, and dV and dw are less than 0
25) Bonus - Chemistry - Multiple Choice
Polycatenane [pol-ee-KAT-n-ayn] and polyrotaxane [pol-ee-ro-TUH-ksayn] are examples of what type of unconventional polymer?
W) Supramolecular
X) Branched
y) Network
z) Dendrimer [DEN-druh-mer]