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Middle School Set 11 (2017) - Round 1 - Question 1

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TOSS-UP: ENERGY Multiple Choice

Which of the following appliances typically uses the most electricity per unit time?

  • W. Vacuum cleaner
  • X. Hair dryer
  • Y. 60-watt incandescent light bulb
  • Z. Desktop computer in active mode
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Middle School Set 11 (2017) - Round 1 - Question 1

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BONUS: ENERGY Multiple Choice

Research at Lawrence Livermore National Laboratory is aimed at reducing methane emissions. According to the Energy Information Administration, which of the following fractions is closest to the estimate of the 100-year net global warming potential of methane?

  • W. One-one-hundredth
  • X. One-fourth
  • Y. Three-fourths
  • Z. Nine-tenths
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Middle School Set 11 (2017) - Round 1 - Question 2

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TOSS-UP: EARTH AND SPACE SCIENCE Multiple Choice

Which of the following is not considered a type of wetland?

  • W. Fen
  • X. Bog
  • Y. Swamp
  • Z. Bay
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Middle School Set 11 (2017) - Round 1 - Question 2

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BONUS: EARTH AND SPACE SCIENCE Multiple Choice

In our solar system, how many moons does the fourth planet from the Sun have?

  • W. 0
  • X. 1
  • Y. 2
  • Z. 4
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Middle School Set 11 (2017) - Round 1 - Question 3

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TOSS-UP: MATH Multiple Choice

Which of the following statements about a right triangle is NOT necessarily true?

  • W. One angle measures 90 degrees
  • X. The hypotenuse is the longest side
  • Y. It has at least one obtuse angle
  • Z. It has two acute angles
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Middle School Set 11 (2017) - Round 1 - Question 3

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BONUS: MATH Short Answer

If p and q are consecutive integers, identify all of the following four numbers that are always odd: 1) p + q; 2) pq; 3) pq + 1; 4) open parenthesis p + q close parenthesis squared.

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Middle School Set 11 (2017) - Round 1 - Question 4

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TOSS-UP: LIFE SCIENCE Multiple Choice

A diver finds an underwater cave filled with bacteria that seem to feed on volcanic sulfur vents. What type of organisms are these?

  • W. Heterotroph [HEH-turoh-trohf]
  • X. Hemotroph [HEMO-trohf]
  • Y. Chemotroph [KEEMOH-trohf]
  • Z. Phototroph [PHOTO-trohf]
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Middle School Set 11 (2017) - Round 1 - Question 4

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BONUS: LIFE SCIENCE Multiple Choice

A liver cell has stopped functioning and a scientist observes that it is producing lactic acid. Failure of what organelle [organ-ELL] most likely caused the liver cell to stop functioning?

  • W. Mitochondrion [my-tow-KON-dree-un]
  • X. Nucleus
  • Y. Ribosome [RYE-beh-sohm]
  • Z. Golgi [GOAL-jee] Body
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Middle School Set 11 (2017) - Round 1 - Question 5

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TOSS-UP: PHYSICAL SCIENCE Multiple Choice

Which of the following is a unit for sound intensity level?

  • W. Amplitude
  • X. Watt
  • Y. Decibel
  • Z. Hertz
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Middle School Set 11 (2017) - Round 1 - Question 5

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BONUS: PHYSICAL SCIENCE Multiple Choice

In which of the following cases will the displacement of the object be the least?

  • W. A 1.2-kilogram object moving 4 meters up an incline of 45 degrees
  • X. A 3.1-kilogram object moving 3 meters on a flat surface
  • Y. A 0.5-kilogram object moving 6 meters along a circle with circumference 6 meters
  • Z. Cannot be determined from the information given
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