1) Toss Up - Computer Science - Multiple Choice
Which of the following would offer the most protection against power-failure data loss:
W) UPS
X) surge protector
Y) data backup
Z) line conditioner
1) Bonus - Computer Science - Short Answer
What is the name for the measure of memory or storage capacity that is equal to 2 to the 40th power bytes or, in decimal, approximately a thousand gigabytes?
ANSWER: TERABYTE2) Toss Up - Physics - Short Answer
In a light-water reactor, the coolant is ordinary water.
What is the moderator?
2) Bonus - Physics - Multiple Choice
The function of lubricants is to change
W) fluid friction to sliding friction.
X) fluid friction to rolling friction.
Y) sliding friction to fluid friction.
Z) sliding friction to rolling friction.
3) Toss Up - Chemistry - Multiple Choice
Robert Boyle measured the volume of air at many pressures. After many trials he observed that the volume of a gas is inversely proportional to its pressure. This statement is
W) a datum
X) a hypothesis
Y) a law
Z) a theory
3) Bonus - Chemistry - Multiple Choice
A bond that is formed by end-to-end overlap of atomic orbitals is a
W) sigma bond
X) pi bond
Y) ionic bond
Z) resonance bond
4) Toss Up - Biology - Multiple Choice
What characteristic has made angiosperms so successful during the last 140 million years?
W) They are very tall, outcompeting other plants for sunlight
X) They have flowers to attract pollinators
Y) They are thorny to deter herbivores from consuming them
Z) They are the only plants that can reproduce asexually
4) Bonus - Biology - Multiple Choice
Fruits primarily function in order to entice animals to eat them. In what way does this benefit the fruiting plant?
W) Animals disperse the seeds
X) Animals pollinate while eating the fruits
Y) Animals eat the fruit instead of other parts of the plant
Z) There is no benefit to the plant
5) Toss Up - Astronomy - Short Answer
Which 2 of the following 4 factors most directly determine the apparent visual magnitude of a star: distance from Earth; intrinsic brightness; color; age
ANSWER: Distance From Earth; Intrinsic Brightness5) Bonus - Astronomy - Short Answer
What basic force of the universe is most responsible for holding the planets of our solar system in their orbits?
ANSWER: Gravity6) Toss Up - Chemistry - Short Answer
What is the pH of a solution with a pOH of 6.8 at 25°C?
ANSWER: 7.26) Bonus - Chemistry - Multiple Choice
Which of the following substances is water soluble:
W) ethanol
X) dichloro-methane
Y) chloroform
Z) benzene
7) Toss Up - Biology - Multiple Choice
Myelin sheaths are found:
W) surrounding tendons
X) covering the brain
Y) covering muscles
Z) around axons of neurons
7) Bonus - Biology - Short Answer
What is the carbohydrate which forms the wall of plant cells?
ANSWER: cellulose8) Toss Up - Astronomy - Multiple Choice
Refracting telescopes always contain which of the following:
W) mirrors
X) lenses
Y) television systems
Z) film
8) Bonus - Astronomy - Short Answer
What terrestrial planet has the longest sidereal period?
ANSWER: Mars9) Toss Up - Chemistry - Multiple Choice
The most direct and accurate means for determining atomic and molecular weights is by:
W) mass spectrometry
X) nuclear magnetic resonance spectrometry
Y) atomic absorption spectrometry
Z) atomic force microscopy
9) Bonus - Chemistry - Short Answer
The process that improves the quality of rubber by crosslinking polymer chains is called:
ANSWER: VULCANIZATION10) Toss Up - Math - Short Answer
If `8x^3 - 4y = -16x`, express y as a function of x in simplest form.
ANSWER: `y = 2x^3 + 4x`10) Bonus - Math - Multiple Choice
Solve the quadratic equation `3x^2 + 2x - 8 = 0`.
W) X = 2 or - 4
X) X = 8 or -12
Y) X = -2 or 4/3
Z) X = 8 or - 4/3
11) Toss Up - Physics - Short Answer
By what factor will the gravitational attraction between two masses be multiplied, if the distance between their centers of mass remains the same, but the mass of one doubles?
ANSWER: 2 TIMES (ACCEPT: 2 or DOUBLES)11) Bonus - Physics - Multiple Choice
Which of the following occurs when a glass tube is rubbed with a silk cloth:
W) protons are transferred from the silk to the glass tube
X) protons are transferred from the glass tube to the silk
Y) electrons are transferred from the silk to the glass tube
Z) electrons are transferred from the glass tube to the silk
12) Toss Up - Physics - Multiple Choice
What is gauge pressure?
W) Another term for atmospheric pressure
X) the ratio of atmospheric pressure to absolute pressure
Y) the excess pressure above atmospheric pressure
Z) the pressure of a gas at high altitude
12) Bonus - Physics - Multiple Choice
What is the simplest pressure measuring device where the pressure is proportional to the difference in height of the two columns of liquid?
W) open tube manometer
X) mercury baramometer
Y) spygmemanometer
Z) Bourden pressure device
13) Toss Up - Physics - Multiple Choice
Which of the following is NOT true regarding quantum mechanics?
W) Bose-Einstein and Fermi-Dirac statistics are mutually exclusive
X) Fermionic degeneracy is a physical manifestation of Heisenberg’s uncertainty principle
Y) Quantum spin magnitude is a variable consisting of a finite distribution of half-integer multiples.
Z) The Pauli exclusion principle is the fundamental basis of physical and analytical chemistry
13) Bonus - Physics - Short Answer
In quantum mechanics, the Pauli matrices refer to a set of three complex matrices that are both Hermitian and unitary- that is, the matrix is both its own conjugate transpose and inverse. Give a matrix that is both Hermitian and unitary.
ANSWER: `[[0,1],[1,0]]` or `[[0,i],[-i,0]]` or `[[1,0],[0,-1]]` (also accept others)14) Toss Up - Biology - Multiple Choice
In plants, the xylem does which of the following:
W) moves water and minerals to roots
X) moves sugar to leaves and stems
Y) moves water and minerals to leaves and stems
Z) moves sugar to roots
14) Bonus - Biology - Multiple Choice
The principal features of an EKG recording are named after the letters P,Q,R,S, and T. The peak labeled by the letter “R” represents what heart action:
W) atrial depolarization
X) ventricular depolarization
Y) atrial repolarization
Z) ventricular repolarization
15) Toss Up - Biology - Multiple Choice
The anthropoid branch that contains the Old World monkeys does not include
W) humans
X) lemurs
Y) great apes
Z) baboons
15) Bonus - Biology - Multiple Choice
The first fishes were covered with
W) bony plates and had jaws
X) bony plates and were jawless
Y) scales and had jaws
Z) scales and were jawless
16) Toss Up - Chemistry - Multiple Choice
Compared to the pure solvent, the boiling point of a solution is
W) increased because of the lowered vapor pressure of the solution.
X) increased because the solution has a higher osmotic pressure.
Y) decreased because the solute boils at a higher temperature than the solvent.
Z) decreased because the dissolved solute raises the vapor pressure of
the solution over that of the solvent.
16) Bonus - Chemistry - Multiple Choice
Which of the following is not an important factor influencing solubility?
W) Chemical nature of solute
X) Temperature
Y) Chemical nature of solvent
Z) Volume of solvent
17) Toss Up - Math - Short Answer
Find the derivative of the following equation: `f(x) = 5x^2 + 3x + 2` (read as: f of x equals 5x squared + 3x + 2)
ANSWER: 10x + 317) Bonus - Math - Short Answer
Find the following number: When the number, one-half of the number, and three-quarters of the number are added, and then 8 is subtracted, the result is 2 less than twice the number:
ANSWER: 24 (Solution: n + 1/2n + 3/4n - 8 = 2n -2)18) Toss Up - Chemistry - Short Answer
What is the name for the most malleable and ductile metal which can be dissolved in aqua regia but is unaffected by air and most other reagents?
ANSWER: GOLD18) Bonus - Chemistry - Short Answer
What is the molecular formula for the conjugate acid of the following 2_ Bronsted-Lowry base: SO4
ANSWER: HSO4-19) Toss Up - General Science - Multiple Choice
If you need to measure 100 milliliters in an Erlenmeyer flask that has a stated volume of 100 ml but has no calibration lines, typically the stated volume will approximately fill to:
W) the top rim of the flask
X) where the neck attaches to the flask
Y) 1 centimeter below the where the neck attaches to the flask
Z) there is no safe way to approximate 100 ml in such a flask
19) Bonus - General Science - Short Answer
The ratio of total leaf surface area to the total ground surface area covered by the leaves is know as what?
ANSWER: LEAF AREA INDEX (ACCEPT: LAI)20) Toss Up - Physics - Multiple Choice
When an electromagnetic wave reflects off of a medium with a lower index of refraction, its phase changes by
W) 0°
X) 90°
Y) 180°
Z) 270°
20) Bonus - Physics - Multiple Choice
An electromagnetic wave hits a medium at an angle of 45° from the normal. Some of it is reflected and some is refracted. The reflected rays will be polarized
W) perpendicular to the plane of incidence
X) parallel to the plane of incidence
Y) parallel to the direction of the ray before the reflection
Z) parallel to the direction of the ray after the reflection
21) Toss Up - Physics - Multiple Choice
Heat engines
W) produce heat.
X) convert mechanical energy to heat energy.
Y) convert heat energy to mechanical energy.
Z) change steam to water.
21) Bonus - Physics - Multiple Choice
Heat engines are classified according to where the
W) compression takes place.
X) combustion takes place.
Y) exhaust takes place.
Z) intake takes place.
22) Toss Up - Physics - Short Answer
A pendulum that swings with simple harmonic motion but cannot reasonably be treated as a point mass is given what name?
ANSWER: PHYSICAL PENDULUM22) Bonus - Physics - Short Answer
A physical pendulum has a moment of inertia about its pivot of 5 kg * m^2, mass 5 kg, and a pivot located 0.1 meters from its center of mass. What is its period of oscillation, taking the gravitational acceleration to be 10 meters per second squared? W) 1 / (20 * pi) seconds X) 20 * pi seconds Y) 1 / (2 * pi) seconds Z) 2 * pi seconds
ANSWER: Z) 2 * PI SECONDS23) Toss Up - Astronomy - Multiple Choice
What is the space between the A ring and B ring of Saturn?
W) Cassini division
X) Encke gap
Y) Maria division
Z) Orion fissure
23) Bonus - Astronomy - Short Answer
What are the two layers that make up the atmosphere of the Sun?
ANSWER: Chromosphere, Corona24) Toss Up - Biology - Multiple Choice
One evolutionary trend is that more complex animals have a
concentration of
W) blood vessels in the tail.
X) nerve cells in the head.
Y) muscle cells in the tentacles.
Z) bone cells in the body wall.
24) Bonus - Biology - Multiple Choice
Mollusks that are carnivores drill through the shells of other
animals by means of
W) radulas.
X) gills.
Y) shells.
Z) mantles.
25) Toss Up - Physics - Short Answer
Indicate which type of decay (alpha, beta, gamma) each of the following emit as there only means of decay? Sr-90,Co-57, Th-204, and Po-210 respectively?
ANSWER: BETA, GAMMA, BETA, AND ALPHA25) Bonus - Physics - Multiple Choice
If two sounds have the same pitch but different loudness, the louder sound has?
W) higher amplitude
X) lower amplitude
Y) higher frequency
Z) lower frequency