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TOSS-UP
Physics - Short Answer | A 5-kilogram mass is dropped from rest. In meters per second, how fast is it falling after 2 seconds? | 19.6 |
BONUS
Physics - Short Answer | Given that the thermal expansion coefficient for steel is ten to the negative five per degree Celsius, then, in meters, how much will a 1200-meter bridge expand if the temperature rises from negative 3 degrees Celsius to 5 degrees Celsius? | 0.0967) Biology - Short Answer The skeletons of Chondrichthyans [kon-DRIK-thee-ans] are composed of what structural tissue? |
BONUS
Biology - Short Answer | The cohesion-tension hypothesis attempts to explain the movement of liquid through what plant system? | XYLEM |
TOSS-UP
Earth and Space - Multiple Choice | Kepler's first law of planetary motion addresses which of the following aspects of orbiting bodies?
W) The relationship between orbital period and distance from the Sun
X) The relationship between mass and rotational period
Y) The shape of orbits
Z) The area swept out by an orbiting body | Y) THE SHAPE OF ORBITS |
BONUS
Earth and Space - Short Answer | What type of reflecting telescope has a secondary mirror deflect the light by 90 degrees so that it is focused at an eyepiece on the side of the telescope? | NEWTONIAN |
TOSS-UP
Energy - Short Answer | Researchers at Argonne National Lab are using, as a catalyst in the water-splitting reaction, a metal that has high resistance to corrosion and is found in higher abundance in meteorites than in the Earth's crust. What metal are they using? | IRIDIUM (ACCEPT: IR) |
BONUS
Energy - Short Answer | Researchers at Oak Ridge National Lab have discovered a new solid catalyst to convert gaseous methane to methanol. Because the catalyst is not the same phase as the reactants, it can be said to be what type of catalyst? | HETEROGENEOUS |
TOSS-UP
Math - Multiple Choice | Riemann [REE-monn] sums are most directly related to which of the following?
W) Average rate of change
X) Derivatives
Y) Definite integrals
Z) Indefinite integrals | Y) DEFINITE INTEGRALS |
BONUS
Math - Short Answer | What is the limit as \(x\) approaches zero of the fraction with numerator sine squared of \(x\) plus open parenthesis sine of \(x^{2}\) close parenthesis, and denominator \(x^{2}\)? | 2 |
TOSS-UP
Chemistry - Multiple Choice | Which of the following pairs of compounds have the same empirical formula?
W) Water and hydrogen peroxide
X) Methane and ethane
Y) Glucose and formaldehyde
Z) Carbon monoxide and carbon dioxide | Y) GLUCOSE AND FORMALDEHYDE |
BONUS
Chemistry - Short Answer | Identify all of the following three statements that are always
TRUE of chemical equilibrium: Adding a reactant always results in an equilibrium shift to the right; Decreasing the temperature of a reaction always results in a decrease in the equilibrium
constant \(K\); Adding a product to a reaction always results in a decrease in \(K\). | NONE |
TOSS-UP
Physics - Short Answer | If a rigid body is experiencing no net torque [tork] and no net
forces, it is said to be in what state? | EQUILIBRIUM (ACCEPT: DYNAMIC EQUILIBRIUM, MECHANICAL EQUILIBRIUM; DO NOT ACCEPT: STATIC EQUILIBRIUM) |
BONUS
Physics - Short Answer | Consider a square ABCD where there is a one-ohm resistor on
each side of the square. If there is also a one-ohm resistor bridging the AC diagonal, what is the
equivalent resistance in ohms between points A and C? | 1/2 (ACCEPT: 0.5)13) Earth and Space - Multiple Choice A location contains deposits of poorly-sorted mixtures of sediment and rocks, including large boulders. Which of the following geological processes is most likely responsible for these deposits? |
## BONUS
Energy - Multiple Choice | What property of carbon nanotubes contributes to their usefulness in electronics applications?
W) Length
X) Tensile Strength
Y) Conductivity
Z) Flexibility | Y) CONDUCTIVITY |
## TOSS-UP
Biology - Short Answer | What is the adjective for a plant species that possesses two types of sporangia? | HETEROSPOROUS |
## BONUS
Biology - Short Answer | Identify all of the following three Cnidarians [nye-DARE-ee-enz] that do NOT experience a medusa phase in their life cycles: Sea wasp; Star coral; Sea anemone. | 2, 3 |
TOSS-UP
Physics - Multiple Choice | Which of the following pairs of strains are most predominant in a bent beam?
W) Pressure and shear
X) Tension and shear
Y) Tension and compression
Z) Shear and compression | Y) Tension and Compression |
TOSS-UP
Chemistry - Short Answer | One major use of hydrogen industrially is in what industrial process that produces ammonia? | HABER [HAH-bur] PROCESS (ACCEPT: HABER-BOSCH PROCESS) |
TOSS-UP
Biology - Short Answer | What is the adjective for the type of enzyme inhibition that involves an inhibitor that mimics the shape of the substrate, thereby blocking the active site? | COMPETITIVE |
BONUS
Biology - Short Answer | Indole-acetic acid is an example of what class of plant hormones? | AUXINS |
TOSS-UP
Physics - Short Answer | An electron in a particle accelerator passes through an electric field such that the change in its potential energy is 15 electron-volts. In volts, what is the magnitude of the potential difference in the field from the point where the electron exited to the point where it entered? | 15 |
BONUS
Physics - Short Answer | Consider the two displacement vectors 3\(i\) meters and -4\(j\) meters. Identify all of the following three statements that are true of this system: Their dot product is zero; They are perpendicular to each other; Their cross product is zero. | 1, 2 |
TOSS-UP
Chemistry - Short Answer | The equilibrium constant for a particular chemical reaction is 1.25 times ten to the negative two. What is the equilibrium constant for the reverse reaction? | 80 |
BONUS
Chemistry - Short Answer | What is the systematic name of the compound NaOCl? | SODIUM HYPOCHLORITE |
TOSS-UP
Energy - Short Answer | Fermi National Accelerator Lab scientists, as a part of the SENSEI [SEN-say] collaboration, are trying to detect dark matter particles with specialized "skipper" CCDs. CCDs are composed of what semiconductor element? | SILICON |
TOSS-UP
Biology - Short Answer | What is the general term for metabolic reactions that release energy by breaking down complex molecules? | CATABOLIC (ACCEPT: CATABOLISM) |
TOSS-UP
Math - Multiple Choice | Which of the following cannot be the rightmost two digits, in order, of the square of an integer?
W) 24
X) 27
Y) 56
Z) 89 | X) 27 |
TOSS-UP
Earth and Space - Multiple Choice | Which of the following tectonic plates is largest?
W) African
X) Arabian
Y) Eurasian
Z) Pacific | Z) PACIFIC |
## BONUS
Chemistry - Short Answer | A weak acid has a K\({}{\rm a}\) of 1.6 times ten to the negative fifth. Assuming that dissociation is small, what is the percent dissociation of a one-molar solution of this acid in water? | 0.4 (ACCEPT: 0.4 PERCENT) |
## BONUS
Physics - Short Answer | At a bottling factory, a robotic arm automatically raises a 4000-newton palette up 6 meters to load it into a canning machine every 5 minutes. In watts, how much average power is required to operate the robotic arm? | 80 |
TOSS-UP
Energy - Short Answer | Scientists at Lawrence Berkeley National Lab have been studying a silencer protein known as PRC2. PRC2 silences genes by chemically modifying what proteins around which DNA is wound? | HISTONES |
TOSS-UP
Math - Multiple Choice | The function \(y=f\) of \(x\) has zeroes at 4 and 12. If its graph is vertically stretched using a factor of 2, what are the zeroes of the result?
W) 2 and 6
X) 4 and 12
Y) 6 and 14
Z) 8 and 24 | X) 4 AND 12 |
TOSS-UP
Earth and Space - Short Answer | What is the most abundant gas in Mars' atmosphere? | CARBON DIOXIDE (ACCEPT: CO2) |
BONUS
Earth and Space - Short Answer | Neutron stars are generally created as remnants of what type of supernovae [super-NOH-veel]? | TYPE TWO (ACCEPT: TWO, ONE B, ONE C) |
TOSS-UP
Biology - Multiple Choice | What phylum [FYE- lum] of animals contains organisms that do not possess tissues? | W) Cnidaria [nye-DARE-ee-ah] X) Porifera Y) Nematoda Z) Echinodermata [eh-keye-noh-der-MAH-tah] X) PORIFERA |
BONUS
Biology - Short Answer | Pterosaurs [TERR-oh-sores] were the first tetrapods to evolve what key characteristic of their clade? | FLIGHT (ACCEPT: POWERED FLIGHT, WINGED FLIGHT) |
TOSS-UP
Math - Short Answer | Two cars leave from the same spot, driving directly away from each other on a straight road, at 20 and 30 miles per hour, respectively. How many minutes will it take for the two cars to be 10 miles apart? | 12 |
TOSS-UP
Physics - Multiple Choice | Which of the following conditions is sufficient for describing a system in unstable equilibrium?
W) Net force is zero
X) Net force is at a minimum
Y) Potential energy is at a strict minimum
Z) Potential energy is at a strict maximum | Z) POTENTIAL ENERGY IS AT A STRICT MAXIMUM |
## BONUS
Energy - Short Answer | Scientists at Brookhaven National Lab are researching ways to increase oil production in the leaves of plants. In what plant structure do oils, such as soybean oil or cocoa butter, normally accumulate? | SEEDS |
## BONUS
Earth and Space - Short Answer | Identify all of the following three rocks that can have a glassy texture: Coal; Obsidian; Pumice. | 2, 3 |
TOSS-UP
Chemistry - Short Answer | What is the primary industrial ore of aluminum? | BAUXITE |
TOSS-UP
Biology - Multiple Choice | Which of the following best describes how a serine protease catalyzes amide-bond-breaking reactions?
W) The enzyme stabilizes the products
X) The enzyme stabilizes the reactants
Y) The enzyme increases the activation energy
Z) The enzyme provides a mechanism with lower-energy intermediates | Z) THE ENZYME PROVIDES A MECHANISM WITH LOWER-ENERGY INTERMEDIATES |
## BONUS
Math - Short Answer | If the product of cosine \(x\) and sine \(x\) is 2/9, what is the value of open parenthesis cosine \(x\) minus sine \(x\) close parenthesis squared? | 5/9 |
TOSS-UP
Physics - Multiple Choice | Kepler's second law states that each planet moves so that a line from the sun to the planet sweeps out equal areas in equal periods of time. It is a direct result of the conservation of which of the following physical quantities?
W) Linear momentum
X) Linear kinetic energy
Y) Angular momentum
Z) Angular kinetic energy | Y) ANGULAR MOMENTUM |
## BONUS
Physics - Short Answer | Consider a spring-mass system that has an angular frequency of 6 radians per second. If the mass is 2 kilograms, then in newtons per meter, what is the value of the spring constant for this oscillator? | 7221) Earth and Space - Short Answer The Saros cycle describes the period of time between successive alignments of what three solar system bodies? |
BONUS
Earth and Space - Short Answer | In stellar fusion, what isotope is the primary product of the proton-proton chain? | HELIUM-4 |
TOSS-UP
Biology - Short Answer | Mature plant cells have the ability to de-differentiate and then give rise to all of the cell types found in the adult organism. What is the term for this potential? | TOTIPOTENT (ACCEPT: TOTIPOTENCY; DO NOT ACCEPT: PLURIPOTENT) |
BONUS
Biology - Short Answer | What is the adjective for organisms that lay eggs that hatch outside the mother's body? | OVIPAROUS23) Chemistry - Short Answer Aldehydes [AL-deh-hides] and ketones have what functional group in common? |
BONUS
Chemistry - Short Answer | Identify all of the following three elements that are considered nonmetals: Radon; Europium; Americium. | 1 |
TOSS-UP
Earth and Space - Short Answer | Solar observatories sometimes spot sungrazers, which are manifestations of what type of object? | COMETS |
TOSS-UP
Biology - Short Answer | What virus is the target of vaccines that are designed to prevent cervical cancer? | HPV (ACCEPT: HUMAN PAPILLOMAVIRUS) |
TOSS-UP
Chemistry - Short Answer | What term is used to describe a hydrocarbon that only possesses carbon-carbon single bonds? | SATURATED (ACCEPT: ALKANE) |
TOSS-UP
Physics - Short Answer | Jan drops a football off a cliff and notes that it takes 4 seconds for it to hit the ground. She throws an identical football from the same height, but with a horizontal velocity of 3.4 meters per second. Assuming the ground is level, how far, in meters, from the base of the cliff will it land? | 13.6 |
TOSS-UP
Math - Short Answer | What is 4/15 divided by 6/25? | 10/9 (ACCEPT: 1 1/9) |
BONUS
Biology - Multiple Choice | Alpha- and beta-adrenergic agonists are medications whose structures mimic which of the following hormones?
W) Insulin
X) Glucagon
Y) Acetylcholine
Z) Epinephrine | Z) EPINEPHRINE |
TOSS-UP
Chemistry - Multiple Choice | Which of the following mixtures of solvents would have a negative deviation from Raoult's [rah-OOLZ] law?
W) Water and acetone
X) Water and ethanol
Y) Hexane and acetone
Z) Hexane and pentane | W) WATER AND ACETONE |
BONUS
Chemistry - Short Answer | Rank the following three alkanes in increasing order of their melting points: Pentane; Ethane; Nonane. | 2, 1, 3 |
TOSS-UP
Physics - Short Answer | Identify all of the following three statements that are true of specific gravity: It can be expressed in grams per liter; Some materials can have a negative specific gravity; Aluminum has a positive specific gravity. | 3 |
TOSS-UP
Earth and Space - Multiple Choice | Which of the following is NOT a geologic period?
W) Devonian
X) Jurassic
Y) Paleogene
Z) Cenozoic [SEN-oh-ZOH-ik] | Z) CENOZOIC |
TOSS-UP
Math - Short Answer | What is the second derivative with respect to \(x\) of \(2x^{3}+4x-7\)? | 12x |
TOSS-UP
Physics - Short Answer | Planet X has the same mass as Earth but one-third of its surface gravitational acceleration. What is the ratio of planet X's radius to Earth's radius? | \(\forall\)3 (ACCEPT: \(\forall\)3 TO ONE) |
BONUS
Physics - Short Answer | Identify all of the following three statements that are true of electric dipoles in an electric field: A non-uniform field can cause translational acceleration; In a uniform field, the net torque is directly proportional to the field strength; In a uniform field, the net force is zero. | ALL OF THEM |
TOSS-UP
Chemistry - Short Answer | In organic chemistry, what is the term for a species with empty orbitals that tends to accept electrons in a chemical reaction? | ELECTROPHILE |
BONUS
Chemistry - Short Answer | Rank the following three isotopes in terms of increasing number of neutrons; Cobalt-57; Iron-57; Manganese-57. | 1, 2, 323) Earth and Space - Short Answer Ishtar Terra is a surface province on what solar system object? |
TOSS-UP
Math - Short Answer | A triangle has two sides of lengths 39 and 57. What is the largest possible integer length of the third side? | 95 |
BONUS
Math - Short Answer | The line with equation \(y=3x+2\) is reflected across the line \(y=x\). What are the slope and \(y\)-intercept of its image, respectively? | \(\text{SLOPE}=1/3\), \(y\text{-INTERCEPT}=-2/3\) |
TOSS-UP
Chemistry - Short Answer | The fact that a solution of hydrofluoric acid will become less acidic if you add sodium fluoride to it is an example of what effect? | COMMON ION EFFECT (ACCEPT: LE CHATELIER'S PRINCIPLE) |
BONUS
Chemistry - Short Answer | If a rate constant is expressed in hertz, what order must the reaction be? | FIRST (ACCEPT: ONE) |
TOSS-UP
Energy - Short Answer | Scientists at Ames Lab are developing new techniques to study substances that lower the activation energy of chemical reactions. What is the general term for these substances? | CATALYST |
TOSS-UP
Biology - Short Answer | Phages are viruses that infect what group of organisms? | BACTERIA |
TOSS-UP
Chemistry - Multiple Choice | Consider the first-order decomposition of N\({}{2}\)O\({}{5}\) into nitrogen dioxide and oxygen. In order to get a linear fit, which of the following parameters should be graphed against time?
W) Natural log of the concentration of N\({}{2}\)O\({}{5}\)
X) Concentration of N\({}{2}\)O\({}{5}\)
Y) Concentration of N\({}{2}\)O\({}{5}\) squared
Z) One over the concentration of N\({}{2}\)O\({}{5}\) | W) NATURAL LOG OF THE CONCENTRATION OF N\({}{2}\)O\({}{5}\) |
TOSS-UP
Math - Multiple Choice | Given that the function \(f\) of \(x\) has a zero at \(x\) = 6, at what x-value must \(f\) of open parenthesis \(x\) over 2 close parenthesis have a zero?
W) 3
X) 6
Y) 8
Z) 12 | Z) 12 |
TOSS-UP
Biology - Short Answer | Order the following three stages of development chronologically: Fetus; Embryo; Zygote. | 3, 2, 1 |
BONUS
Biology - Multiple Choice | Professional antigen-presenting cells such as macrophages and dendritic [den-DRIH-disk] cells typically present foreign antigens to which of the following types of cells?
W) Helper T
X) Cytotoxic T
Y) Memory B
Z) Plasma | W) HELPER T |
TOSS-UP
Energy - Short Answer | Scientists at Oak Ridge National Lab have been studying a bacterium that makes a new derivative of what cobalt-containing vitamin? | B12 (ACCEPT: COBALAMIN) |
BONUS
Energy - Multiple Choice | Scientists at Brookhaven National Lab are studying medical imaging scintillators that absorb high-energy light and release lower-wavelength light that can be detected with a camera. In what type of imaging are these materials most likely used?
W) X-ray imaging
X) MRI
Y) Photoacoustic imaging
Z) Ultrasound | W) X-RAY IMAGING11) Earth and Space - Short Answer What is the adjective for a constellation that never appears to set in the night sky throughout the year? |
BONUS
Earth and Space - Short Answer | Apollo 11 astronauts brought back primarily what type of rock from the Mare Tranquillitatis [MAH-ray Tran-quill-ih-TAH-tis]? | BASALT |
TOSS-UP
Physics - Short Answer | Identify all of the following three physical quantities that are considered scalar quantities: Speed; Work; Acceleration. | 1, 2 |
BONUS
Physics - Short Answer | Identify all of the following three vectors that must be constant for an object in an unperturbed orbit: Angular momentum; Linear momentum; Acceleration. | 1 |
TOSS-UP
Biology - Multiple Choice | Which of the following classes of macromolecules can be digested by salivary amylase?
W) Proteins
X) Carbohydrates
Y) Lipids
Z) Nucleic acids | X) CARBOHYDRTES |
TOSS-UP
Earth and Space - Multiple Choice | Gabriela is studying a map showing rivers flowing through a mountainous region. She notices that the V-shaped river valleys are often much wider than the rivers themselves. Which of the following statements best explains her observation?
W) The rivers carried more water in the past
X) The valleys were formed by glaciers and were later replaced by rivers
Y) A series of cut-banks and point-bars formed as the rivers developed, widening the valley
Z) Mass wasting and stream erosion have widened the valley | Z) MASS WASTING AND STREAM Erosion HAVE WIDENED THE VALLEY |
## BONUS
Energy - Multiple Choice | Oak Ridge National Lab is developing a method to produce quantum particles in a controlled, deterministic manner to improve the speed and security of transmitting encrypted data over long fiber-optic cables. What specific particles are they using to transmit this data?
W) Photons
X) Phonons
Y) Electrons
Z) Positrons | W) PHOTONS |
TOSS-UP
Chemistry - Multiple Choice | Which of the following best describes the enthalpy and entropy changes associated with melting ice?
W) Negative delta H, negative delta S
X) Negative delta H, positive delta S
Y) Positive delta H, positive delta S
Z) Positive delta H, negative delta S | Y) POSITIVE DELTA H, POSITIVE DELTA S |
## BONUS
Chemistry - Short Answer | Rank the following three molecules in terms of increasing triple point temperature: Water; Carbon dioxide; Methane. | 3, 2, 1 |
TOSS-UP
Math - Short Answer | What is 2 times 5 squared? | 50 (DO NOT ACCEPT: 100) |
BONUS
Math - Short Answer | How many sides does a regular polygon have if each interior angle measures 175 degrees? | 72 |
TOSS-UP
Physics - Short Answer | Galileo's theory of gravity states that objects will fall at the same speed regardless of their weight. Due to the atmosphere, however, some objects fall faster than others. Rank the following three objects in increasing order of their speed one second after being dropped from a building: One-gram feather; One-gram solid-iron sphere; One-gram solid-iron cube. | 1, 3, 2 |
BONUS
Physics - Short Answer | A pipe is carrying an incompressible liquid flowing at 8 meters per second. At a particular section, the center of the pipe is elevated by 3 meters. If the static pressure is unchanged, then what is the velocity to the nearest meter per second in the elevated section of pipe? | 219) Biology - Short Answer Identify all of the following three functional groups that can be found in alanine: 1) Carboxyl; 2) Amine; 3) Alkene [al-KEEN]. |
## BONUS
Biology - Multiple Choice | The estrus cycle in many mammals is responsible for which of the following processes?
W) Sleep
X) Digestion
Y) Reproduction
Z) Migration | Y) REPRODUCTION |
TOSS-UP
Earth and Space - Short Answer | What is the name of the largest canyon on the planet Mars? | VALLES MARINERIS (DO NOT ACCEPT: MARINER VALLEY) |
TOSS-UP
Chemistry - Short Answer | Standard reduction potentials are reported using what type of electrode as the zero point? | STANDARD HYDROGEN ELECTRODE (ACCEPT: SHE) |
BONUS
Chemistry - Short Answer | Concentrated hydrochloric acid is sold as a 12-molar solution in water. How many milliliters of concentrated hydrochloric acid must be used to prepare 1.5 liters of a 100-millimolar solution of hydrochloric acid? | 12.5 |
TOSS-UP
Physics - Short Answer | What is the name of the distance from an uncharged, stationary object at which the escape velocity equals the speed of light? | SCHWARTZSCHILD RADIUS |
BONUS
Physics - Short Answer | Andrew is designing a bird-strike-resistant nose cone for an experimental aircraft that flies at 200 meters per second. If a typical bird is 0.5 kilograms and an impact lasts 2.5 milliseconds, then in newtons, what is the average impact force that the nose cone must be able to withstand? | 40,00023) Math - Short Answer In three-space, what is the distance from the point (1, 3, 6) to the origin? |
TOSS-UP
Math - Short Answer | What is the square of the complex number 1 - 3i? | -8 - 6\(i\) |
BONUS
Math - Multiple Choice | A differentiable function \(f\) of \(x\) has domain the closed interval from -5 to 4 and range the closed interval from 3 to 12. If \(f\) prime of \(x\) is less than 0 for all \(x\) in the domain, what is \(f\) of -5?
W) -5
X) 3
Y) 4
Z) 12 | Z) 12 |
TOSS-UP
Biology - Short Answer | What stain, performed with crystal violet dye, provides the most common way of classifying bacteria? | GRAM |
BONUS
Biology - Short Answer | What is the term for mobile genetic elements that can move from one location to another in a cell's genome? | TRANSPOSONS (ACCEPT: JUMPING GENE) |
TOSS-UP
Earth and Space - Multiple Choice | Which of the following surface reservoirs on Earth contains the most carbon?
W) Soil
X) Atmosphere
Y) Vegetation
Z) Ocean | Z) OCEAN |
TOSS-UP
Physics - Short Answer | An astronaut weighs 500 newtons on planet X, which has a gravitational acceleration of 4 meters per second squared. If he travels to planet Y, which has a gravitational acceleration of 12 meters per second squared, then in newtons, what is his new weight? | 1500 |