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High School Set 9 (2015) - Round 1 - Question 1

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TOSS-UP: Earth and Space Short Answer

What term is used to describe the point on the surface, below which an earthquake originates?

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High School Set 9 (2015) - Round 1 - Question 1

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BONUS: Earth and Space Multiple Choice

You are traveling west by jet and cross three time zone boundaries. If your watch reads 3:00 p.m. when you arrive, to what time should you reset it?

  • W. 12:00 noon
  • X. 6:00 p.m.
  • Y. 12:00 midnight
  • Z. 6:00 a.m.
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High School Set 9 (2015) - Round 1 - Question 2

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TOSS-UP: BIOLOGY Short Answer

What type of leukocytes, characterized by their CD4 receptors, secrete cytokines [sigh-toe-kines] that activate nearby B and T cells?

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High School Set 9 (2015) - Round 1 - Question 2

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BONUS: BIOLOGY Short Answer

What is the term used to describe a virus that attacks bacteria?

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High School Set 9 (2015) - Round 1 - Question 3

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TOSS-UP: MATH Short Answer

Where is the derivative of the function f(x) = 2x² + 5x – 3 equal to zero?

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High School Set 9 (2015) - Round 1 - Question 3

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BONUS: MATH Short Answer

If the line tangent to the graph of the function f(x) at the point (1, 3) passes through the point (-1.5, -2), then what is value of the derivative of f(x) when x = 1?

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High School Set 9 (2015) - Round 1 - Question 4

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TOSS-UP: Energy Multiple Choice

If the frequency of a wave is decreased, which of the following changes must occur for the wave to maintain a constant velocity?

  • W. The period must decrease
  • X. The wavelength must increase
  • Y. The amplitude must increase
  • Z. The amplitude must decrease
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High School Set 9 (2015) - Round 1 - Question 4

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BONUS: Energy Short Answer

What is the process in plant metabolism in which Rubisco adds oxygen instead of carbon dioxide into the carbon intermediate of the Calvin Cycle, thus reducing photosynthetic efficiency?

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High School Set 9 (2015) - Round 1 - Question 5

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TOSS-UP: Chemistry Short Answer

What name is given to the thermodynamic state function equal to the sum of internal energy and the product of pressure and volume, whose difference in a chemical reaction is equal to the isobaric heat transfer accompanying the reaction, and which is symbolized by the letter H?

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High School Set 9 (2015) - Round 1 - Question 5

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BONUS: Chemistry Multiple Choice

Which of the following statements regarding stoichiometry [stoh-kee-om-et-ree] is not true?

  • W. Calculating a stochiometric ratio of reagents assumes the reaction goes to completion
  • X. Volume ratios can be substituted for molar ratios in calculations for gas phase reactions
  • Y. Percent yield is the ratio of theoretical yield to empirical yield for a reaction
  • Z. Limiting reagent calculations require knowledge of the molar masses of all reactant species
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