Settings
Random Round Print Round
1) Toss Up - General Science - Short Answer

During his work in 1892 on the liquefaction of hydrogen, what Scottish chemist invented a double-walled vacuum flask which became widely known and named in his honor?

ANSWER: SIR JAMES DEWAR (ACCEPT: DEWAR) (Solution: the Dewar flask)
1) Bonus - General Science - Short Answer

Order the following metals in terms of their electrical conductivities from the highest to the lowest: gold; silver; copper; aluminum

ANSWER: SILVER; COPPER; GOLD; ALUMINUM
2) Toss Up - Computer Science - Multiple Choice

Which of the following is the networking protocol of the internet:
W) TCP/IP
X) MIME
Y)DNS
Z) POP3

ANSWER: W) TCP/IP
2) Bonus - Computer Science - Multiple Choice

A sniffer is a program which:
W) detects possible problems and aborts risky processes
X) monitors data travelling over a network
Y) verifies authentication information
Z) finds and neutralizes viruses

ANSWER: X) MONITORS DATA TRAVELLING OVER A NETWORK
3) Toss Up - Chemistry - Multiple Choice

Originally, the term reduction meant
W) removal of electrons
X) addition of electrons
Y) reaction with oxygen
Z) removal of oxygen

ANSWER: Z) removal of oxygen
3) Bonus - Chemistry - Multiple Choice

The percent yield of products from a chemical reaction is the ratio of
W) expected yield to actual yield
X) actual yield to expected yield
Y) actual yield to minimum yield
Z) expected yield to minimum yield

ANSWER: X) actual yield to expected yield
4) Toss Up - Physics - Short Answer

Name the 4 strokes of an Otto cycle internal combustion engine:

ANSWER: INTAKE, COMPRESSION, POWER (ACCEPT COMBUSTION), EXHAUST
4) Bonus - Physics - Short Answer

How many revolutions are there per power stroke in a 2-stroke engine?

ANSWER: ONE
5) Toss Up - Physics - Multiple Choice

Diamagnets, in the presence of a magnetic field:
W) are always attracted
X) are always repelled
Y) are attracted or repelled depending on the angle of approach
Z) are unaffected

ANSWER: X) ARE ALWAYS REPELLED
5) Bonus - Physics - Multiple Choice

Diamagnets always have a relative magnetic permeability that is
W) 0
X) between 0 and 1
Y) 1
Z) greater than 1

ANSWER: X) BETWEEN 0 AND 1
6) Toss Up - Biology - Multiple Choice

The coat of a plant seed is typically derived from which of the following:
W) the hypoderm
X) the carpel
Y) the micropyle
Z) the integument

ANSWER: Z) the integument
6) Bonus - Biology - Multiple Choice

If a person had low levels of corticosteroid, which of the following would be the BEST way to test whether the adrenal glands themselves are not functioning or if it is the fault of the pituitary gland:
W) monitor the kidney for sodium excretion
X) measure the blood plasma for high levels of potassium
Y) inject small amounts of corticotropin and find if the adrenals produce corticosteroids
Z) monitor the urine for high amounts of protein and sodium

ANSWER: Y) inject small amounts of corticotropin and find if the adrenals produce corticosteroids
7) Toss Up - Earth Science - Multiple Choice

The Fujita Scale is used to classify intensities of:
W) hurricanes
X) tornadoes
Y) earthquakes
Z) volcanic eruptions

ANSWER: X) TORNADOES
7) Bonus - Earth Science - Short Answer

What is the only common mineral to be strongly magnetic other than magnetite:

ANSWER: PYRRHOTITE (ACCEPT: FeS OR IRON SULFIDE)
8) Toss Up - Chemistry - Short Answer

According to standard chemical nomenclature and indicating the proper charge, what is the formula for hydrogen sulfide?

ANSWER: H2s
8) Bonus - Chemistry - Multiple Choice

Which of the following is a diprotic acid:
W) H2C2O4
X) H3PO4
Y) HCl
Z) HNO2

ANSWER: W) H2C2O4
9) Toss Up - Physics - Short Answer

What is the name of the law that relates the force between two charges?

ANSWER: COULOMB’S LAW
9) Bonus - Physics - Multiple Choice

What is the magnitude of the electrostatic force between two particles, each with a charge of +1 C, that are separated by 5 m? Include k (coulomb’s constant) in your answer.
W) 0.01 C2/m2 • k
X) 0.04 C2/m2 • k
Y) 0.10 C2/m2 • k
Z) 0.20 C2/m2 • k

ANSWER: X) 0.04 C2/M2 • K
10) Toss Up - Chemistry - Multiple Choice

Which of the following pairs of compounds, when placed in water, would be expected to yield a precipitate?
W) Ammonium chloride and sodium nitrate
X) Sodium acetate and lithium hydroxide
Y) Potassium sulfide and copper (II) sulfate
Z) Nitric acid and ammonia

ANSWER: Y) POTASSIUM SULFIDE AND COPPER (II) SULFATE
10) Bonus - Chemistry - Short Answer

There are two elements whose ground state electron configurations contain exactly two half-filled subshells. What are these two elements?

ANSWER: CHROMIUM AND MOLYBDENUM
11) Toss Up - Chemistry - Short Answer

What is the pH of a solution at 25°C that has a hydrogen ion concentration of 0.001?

ANSWER: 3
11) Bonus - Chemistry - Short Answer

Which 3 Noble gases undergo no chemical reactions and form no known compounds?

ANSWER: HELIUM, NEON, ARGON (ACCEPT: He, Ne, Ar)
12) Toss Up - Biology - Short Answer

What term beginning with the letter O is used to describe cancer-causing genes originally derived from animal or plant cells?

ANSWER: oncogenes
12) Bonus - Biology - Short Answer

During cellular respiration, glucose is oxidized completely to what twocompounds?

ANSWER: co2 (carbon dioxide) and h2o (water)
13) Toss Up - Earth Science - Multiple Choice

A meromictic lake has layers of water that typically:
W) intermix once a year
X) intermix each spring and autumn
Y) intrtmix only when the winds are favorable
Z) do not intermix

ANSWER: Z) DO NOT INTERMIX
13) Bonus - Earth Science - Short Answer

Name all of the following 4 factors that are reasons why biomes are not considered homogeneous biotic communities: local topography; soil characteristics; temperature; water

ANSWER: ALL
14) Toss Up - General Science - Short Answer

What is the field of GENERAL SCIENCE that deals with designing computer systems that can recognize spoken words:

ANSWER: VOICE RECOGNITION (ACCEPT: SPEECH RECOGNITION)
14) Bonus - General Science - Short Answer

What is the de facto standard protocol for establishing connections over networks:

ANSWER: TCP/IP (ACCEPT: TRANSMISSION CONTROL PROTOCOL/INTERNET PROTOCOL)
15) Toss Up - Math - Multiple Choice

What is the minimum number of times a deck of 52 cards must be shuffled to thoroughly mix the cards?
W) 2
X) 5
Y) 7
Z) 12

ANSWER: Y-- 7
15) Bonus - Math - Multiple Choice

Although the chance of YOUR winning a state lottery twice is as low as one chance in 17 trillion, what is the chance that SOMEONE will win twice?
W) 1 in 10
X) 1 in 30
Y) 1 in 3000
Z) 1 in 1,000,000

ANSWER: X-- 1 IN 30
16) Toss Up - Energy - Multiple Choice

When the spent fuel is removed from a nuclear power plant, which of the following immediately occurs?
W) It is placed in dry cask storage at the nuclear reactor site until it is safe to handle, and then it is sent to the permanent storage facility
X) It is sent to Yucca Mountain to be stored in the National Repository
Y) It is stored under water in a spent fuel pool at the reactor for several years
Z) It is sealed in 50 gallon drums and allowed to cool

ANSWER: Y) IT IS STORED UNDER WATER IN A SPENT FUEL POOL AT THE REACTOR FOR SEVERAL YEARS
16) Bonus - Energy - Multiple Choice

Which of the following statements is NOT true about bubble chambers?
W) They consist of tanks of superheated transparent liquid
X) As charged beam particles pass through the liquid, the liquid boils along their paths
Y) When the pressure is decreased, the bubbles clear
Z) The bubbles are allowed to grow until they have a diameter of about 1 millimeter

ANSWER: Y) WHEN THE PRESSURE IS DECREASED, THE BUBBLES CLEAR
17) Toss Up - Biology - Multiple Choice

In DNA replication, which of the following molecules is synthesized in the same direction that the replication fork is moving?
W) Leading strand
X) Okazaki fragment
Y) Primer
Z) Lagging strand

ANSWER: W) LEADING STRAND
17) Bonus - Biology - Multiple Choice

Which of the following best describes the type of RNA that codes for a complete gene on the sense strand of a DNA molecule?
W) Ribosomal RNA [ry-BUH-soh-muhl]
X) Mitochondrial RNA [my-tuh-KON-dree-uhl]
Y) Pre-messenger RNA
Z) Transfer RNA

ANSWER: Y) PRE-MESSENGER RNA
18) Toss Up - Biology - Short Answer

Which germ layer in mammals is predominantly responsible for the gut lining and digestive glands?

ANSWER: ENDODERM
18) Bonus - Biology - Short Answer

Shistosomia mansoni is to shistosomiasis as Trypanasoma cruzi (Pronounced as TRY-pana -soma CREW-zeye) is to:

ANSWER: CHAGAS’ DISEASE
19) Toss Up - Physics - Short Answer

The mass of an object is increased by a factor of 4 and its distance from the earth is doubled. By what factor has the escape velocity increased?

ANSWER: TWICE
19) Bonus - Physics - Multiple Choice

The position of an object of mass 2.0Kg is given by r=6t2. Find the power supplied to the object in Watts at t=2
W) 144
X) 212
Y) 288
Z) 360

ANSWER: Y) 288
20) Toss Up - Computer Science - Multiple Choice

Copyrighted software that is distributed free of charge by the author for people to use but not sell is called:
W) freeware
X) openware
Y) open source
Z) public-domain

ANSWER: W) FREEWARE
20) Bonus - Computer Science - Multiple Choice

What is the octal equivalent of the binary number 1000 (read as: one, zero, zero, zero)?
W) 1
X) 3
Y) 5
Z) 10

ANSWER: Z) 10
21) Toss Up - Physics - Multiple Choice

A 20 kilogram mass is suspended from the end of a spring with a spring constant of 5 newtons per meter. If the mass is displaced 10 centimeters from equilibrium [ee-kwuh-LIB-ree-uhm], what is the maximum speed of the mass in meters per second?
W) 0.05
X) 0.25
Y) 0.5
Z) 2

ANSWER: W) 0.05
21) Bonus - Physics - Short Answer

A distant planet has a 3:2 spin-orbit resonance due to tidal influences from its nearby host star. If this planet’s sidereal day is 50 Earth days, how long, respectively, in Earth days, are its year and its solar day?

ANSWER: YEAR=75, SOLAR DAY=150
22) Toss Up - Biology - Multiple Choice

A product of noncyclic photophosphorylation is
W) NADPH
X) water
Y) carbon dioxide
Z) ADP

ANSWER: ) NADPH
22) Bonus - Biology - Multiple Choice

All of the following occur in cyclic photophosphorylation EXCEPT:
W) Electrons move along an electron transport chain.
X) Electrons in chlorophyll become excited.
Y) ATP is produced.
Z) NADPH is produced.

ANSWER: Z) NADPH is produced.
23) Toss Up - Physics - Multiple Choice

Which boson is responsible for Beta Minus decay?
W) W Boson
X) Higgs Boson
Y) Y Boson
Z) Photon

ANSWER: W) W BOSON
23) Bonus - Physics - Short Answer

What are the two reactants from Beta Positive decay?

ANSWER: POSITRON AND ELECTRON NEUTRIN
24) Toss Up - Math - Multiple Choice

In which of the following intervals does the sine of 75 degrees lie in?
W) 0.5 to 0.625
X) 0.625 to 0.75
Y) 0.75 to 0.875
Z) 0.875 to 1

ANSWER: Z) 0.875 to 1
24) Bonus - Math - Short Answer

Which of the six basic trigonometric functions is the reciprocal of the sine?

ANSWER: Cosecant
25) Toss Up - Math - Short Answer

In order, what are the prime numbers between 30 and 50?

ANSWER: 31, 37, 41, 43, 47
25) Bonus - Math - Short Answer

Find the prime factorization of 1050:

ANSWER: 2x3x5x5x7 (ACCEPT: 2x3x`5^2`x7)