1) Toss Up - Physics - Multiple Choice
The heat of the Earth or outside air is used by
W) warm-air systems.
X) heat-pump systems.
Y) steam-heating systems.
Z) radiant hot-water systems.
1) Bonus - Physics - Multiple Choice
Active and passive heating are two types of
W) radiant heating systems.
X) hot-water heating systems.
Y) solar-heating systems.
Z) warm-air heating systems.
2) Toss Up - Physics - Multiple Choice
A ball is thrown vertically upward. Assuming that up is positive, which of the following pairs best describes its velocity and acceleration, respectively, at its highest point?
W) Negative, negative
X) Zero, negative
Y) Negative, zero z) Zero, zero
2) Bonus - Physics - Short Answer
If an earplug decreases the sound level of sound waves by 20 decibels, providing your answer as a decimal to the nearest hundredth, what is the ratio of the final intensity of the waves to their initial intensity?
ANSWER: 0.013) Toss Up - General Science - Short Answer
Pure gold is how many karats?
ANSWER: 243) Bonus - General Science - Short Answer
How many yards are in 1 rod?
ANSWER: 5.54) Toss Up - Biology - Multiple Choice
In a cell, the membrane bounding the outer surface of the cytoplasm is known as:
W) tonoplast
X) cytoplast
Y) plasmalemma
Z) no choice
4) Bonus - Biology - Multiple Choice
Excess secretion from this gland can cause a person to be thin, hyperactive, always hungry, & irritable.
W) adrenal cortex
X) thyroid
Y) anterior pituitary
Z) adrenal medulla
5) Toss Up - Earth And Space - Short Answer
What is the general name of an instrument designed to observe the extremely faint emissions from the region around the Sun in the absence of a solar eclipse?
ANSWER: CORONAGRAPH (ACCEPT: SOLAR CORONAGRAPH)5) Bonus - Earth And Space - Short Answer
What climate proxy can paleoclimate researchers use to provide an uninterrupted climate record extending back hundreds of thousands of years, including information such as temperature, precipitation, chemistry, volcanic eruptions, and other climate indicators?
ANSWER: ICE CORE6) Toss Up - Physics - Multiple Choice
An LED receives power through a pulse width modulation system. If the duty cycle is 100%, the LED dissipates power P. If the duty cycle is changed to 64%, the power dissipated changes to
W) 0.04 * P
X) 0.08 * P
Y) 0.32 * P
Z) 0.64 * P
6) Bonus - Physics - Short Answer
28 identical LEDS each provide a voltage drop of 3.3 volts and operate best at a current of 500 milliamps. If they are all connected in parallel to an ideal EMF source that provides them with their optimum current rating, how much current is drawn from the voltage source, and what is the total power dissipated?
ANSWER: 14 AMPERES AND 46.2 WATTS7) Toss Up - Chemistry - Short Answer
In Potassium Permanganate (KMnO4) what is the oxidation number of the Magnesium atom?
ANSWER: +77) Bonus - Chemistry - Short Answer
What colour is aqueous Potassium Permanganate?
ANSWER: PURPLE8) Toss Up - Physics - Multiple Choice
A girl runs up one flight of steps. Which of the following factors does NOT affect the work done by the girl against gravity?
W) Her mass
X) Height of the flight of steps
Y) Her speed
Z) Acceleration due to gravity
8) Bonus - Physics - Short Answer
What is the efficiency of the body when a cyclist expends 1000 watts of power to deliver mechanical energy to the bicycle at a rate of 100 watts?
ANSWER: 10%9) Toss Up - Energy - SHORT ANSWER
What is the molecular formula of the common Uranium substance Yellowcake?
W)U2H4
X) U3H8
Y) H2SO4
Z)N2O6
9) Bonus - Energy - SHORT ANSWER
Order the following steps of coal formation chronologically: 1)peat 2)lignite 3)bituminous 4)anthracite
ANSWER: 1, 2, 3, 410) Toss Up - Astronomy - Short Answer
In astronomical units to the first decimal place, what is the Chandrasekhar Limit?
ANSWER: 1.410) Bonus - Astronomy - Short Answer
If a new Moon occurs on May 5^h at 8:20 AM eastern daylight time, on what day will the full Moon occur that month?
ANSWER: 19th11) Toss Up - Physics - Short Answer
What is the common name for the instrument consisting of a weighted glass tube or bulb which, when floated in a liquid, indicates the liquid’s relative density?
ANSWER: HYDROMETER11) Bonus - Physics - Short Answer
According to conventional nomenclature of nuclear science, what case and letter is used to symbolize mass number?
ANSWER: UPPER CASE A12) Toss Up - Biology - Multiple Choice
Which of the following plants are bryophytes?
W) Ferns
X) Conifers
Y) Algae
Z) Liverworts
12) Bonus - Biology - Multiple Choice
Which of the following is NOT a difference between between bryophytes and algae?
W) Vascular tissue is present in bryophytes but absent in algae
X) Bryophytes are mostly terrestrial while algae are mostly aquatic
Y) Algae can reproduce asexually while bryophytes cannot
Z) The plant body of algae can be unicellular while the plant body of bryophytes is always multicellular
13) Toss Up - Physics - Multiple Choice
A person spearfishing from the shore sees a fish located 3 meters from the shore at an approximate depth of 1 meter. To spear the fish, the person should aim in which of the following directions?
W) Directly at the fish’s image
X) Above the fish’s image
Y) Below the fish’s image
Z) Behind the fish’s image
13) Bonus - Physics - Short Answer
Once a rocket’s fuel runs out, it coasts upwards for another 50 kilometers before falling back to Earth. Given g as 10 meters per second squared, what was the rocket’s vertical velocity in meters per second the moment the fuel ran out?
ANSWER: 100014) Toss Up - Earth Science - Multiple Choice
What is the third stage in the formation of coal?
W) Lignite
X) Anthracite
Y) Peat
Z) Bituminous
14) Bonus - Earth Science - Short Answer
Order the following sedimentary rocks from finest texture to most coarse texture: 1. Siltstone 2. Breccia 3. Sandstone
ANSWER: 1, 3, 215) Toss Up - Physics - Multiple Choice
In ferromagnetic materials such as in hard drives, many adjacent atoms or molecules can associate and stay magnetized in the same direction. The unit that acts as a bit in a hard drive is called a
W) magnetic group
X) magnetic cluster
Y) magnetic domain
Z) magnetic block
15) Bonus - Physics - Short Answer
In modern hard drives, the probe that reads whether a bit is registered as a 1 or a 0 depends upon dramatically changing resistance in the presence of magnetic fields. What is this effect called?
ANSWER: GIANT MAGNETORESISTANCE16) Toss Up - Earth Science - Short Answer
As glaciers erode the surface over which they move, sets of parallel linear grooves are sometime worn into the rock surface. These grooves are called:
ANSWER: STRIATIONS16) Bonus - Earth Science - Multiple Choice
Of the following, which are clouds formed at the highest altitude:
W) altocumulus
X) altostratus
Y) cirrocumulus
Z) nimbostratus
17) Toss Up - Biology - Multiple Choice
Each of the following is a macronutrient except
W) carbohydrates
X) ions
Y) lipids
Z) water
17) Bonus - Biology - Short Answer
Who is the best known proponent of the inheritance of acquired characteristics?
ANSWER: JEAN BAPTISTE LAMARCK (ACCEPT LAMARCK)18) Toss Up - Computer Science - Short Answer
What does the acronym URL mean?
ANSWER: UNIFORM RESOURCE LOCATOR18) Bonus - Computer Science - Multiple Choice
In HTML, what defines the basic layout or arrangement of pages in frames on a single Web page?
W) frameset document
X) frame rate adjustment
Y) frame pager
Z) None of the above
19) Toss Up - Math - Multiple Choice
Which of the following are coterminal angles in standard position (read slowly):
W) 550° and 185°
X) 80° and -190°
Y) 1160° and 800°
Z) 181° and -118°
19) Bonus - Math - Short Answer
Solve the following equation for x, expressing your answer in simplest radical form over the real numbers: `x^4 - 9x^2 + 8 = 0`
ANSWER: `+- 2sqrt(2)` AND `+- 1` (ACCEPT ALL)20) Toss Up - Biology - Short Answer
Recently, the number of American bee colonies has been seriously diminished due to sudden, massive, unexplained die-offs. The agent of this epidemic has not yet been conclusively identified. What is the name of this disease?
ANSWER: COLONY COLLAPSE DISORDER (ACCEPT: CCD)20) Bonus - Biology - Multiple Choice
While hiking in Arizona, you come over a rise, hear a rattling sound and see a western diamondback rattlesnake coiled and ready to strike. Indicate which of the following physiological responses would NOT occur in you?
W) Gluconeogenesis would occur in the liver
X) Blood vessels in the gut and skin would constrict
Y) Heart rate and blood pressure would increase
Z) Adipose tissue would release fatty acids to the blood stream
21) Toss Up - Physics - Multiple Choice
Which of the following explains what happens when a negatively charged rod is held to the metal conductor of a leaf electroscope?
W) The leaves close because electrons flow from the rod to the electroscope, resulting in a net negative charge in the electroscope.
X) The leaves close because electrons flow from the electroscope to the rod, resulting in a net positive charge in the electroscope.
Y) The leaves open because electrons flow from the rod to the electroscope, resulting in a net negative charge in the electroscope.
Z) The leaves open because electrons flow from the electroscope to the rod, resulting in a net positive charge in the electroscope.
21) Bonus - Physics - Short Answer
A positive charge of +5.3 Coulombs is placed in an electric field of 420. Newtons per Coulomb. Find the magnitude of the force the charge experiences in this electric field, rounded to two significant figures.
ANSWER: 2200 N (Explanation: F = E * q)22) Toss Up - Physics - Short Answer
In one cycle of alternating current, 180° is given to the point at what fractional amount of the way through the cycle?
ANSWER: 0.522) Bonus - Physics - Short Answer
If the speed of sound in a certain medium is 360 meters per second, what is the wavelength, in meters, of a sound-wave that has a frequency of 60 hertz?
ANSWER: 6 (Solution: wavelength = speed/f; = 360/60 = 6 meters)23) Toss Up - Physics - Multiple Choice
The LIGO, along with many synchrotron facilities, employ by necessity ultra high vacuum conditions inside the test location. An ultra high vacuum is typically characterized as one with a pressure of less than about?
W) 100 zeptopascals
X) 100 femtopascals
Y) 100 nanopascals
Z) 100 millipascals
23) Bonus - Physics - Multiple Choice
At STP, the mean free path of a gas molecule is on the order of 68 nanometers. In an ultrahigh vacuum, the mean free path of a molecule is about?
W) 40 millimeters
X) 40 meters
Y) 40 kilometers
Z) 40 megameters
24) Toss Up - Chemistry - Short Answer
Calculate the enthalpy of vaporization, in kilojoules, of water at 25ºC and 1 atmosphere. Assume the standard enthalpy of formation of liquid water is -286kilojoules and the standard enthalpy of formation of water gas is -242 kilojoules:
ANSWER: 4424) Bonus - Chemistry - Short Answer
In the following reaction, H2 + Cl2 . 2HCl, assume the bond dissociation of H2 is 430 kilojoules per mole, of Cl2 is 240 kilojoules per mole, and of HCl is 400kilojoules per mole. What is the standard enthalpy change, or .H°, (read as: delta H degree) for thereaction, in kilojoules:
ANSWER: -13025) Toss Up - Biology - Multiple Choice
Which of the following statements about the lone star tick is true?
W) It only lives in Texas
X) It transmits Lyme disease
Y) It feeds on humans, dogs, and cats
Z) It is relatively passive
25) Bonus - Biology - Short Answer
What is the common name of the woody shrub or small tree with the following three characteristics: 1) 7 to 13 leaflets per pinnate leaf, 2) grows in very wet or flooded soils, and 3) contains a resin that causes skin and mucus membrane irritation to humans?
ANSWER: POISON SUMAC