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Science Academic Team

Science Academic Team. Practice Meet #3 February 10, 2011. SD-CP-Sc-1. The only stable cation of silver has _______. a. a negative one charge (1 - ) b. a positive one charge (1 + ) c. a positive two charge (2 + ) d. no charge. SD-CP-Sc-2. The most important cation of copper has _____.

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Science Academic Team

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  1. Science Academic Team Practice Meet #3 February 10, 2011

  2. SD-CP-Sc-1 The only stable cation of silver has _______. a. a negative one charge (1-) b. a positive one charge (1+) c. a positive two charge (2+) d. no charge

  3. SD-CP-Sc-2 The most important cation of copper has _____. a. no charge b. a negative 2 charge (2-) c. a positive 1 charge (1+) d. a positive 2 charge (2+)

  4. Two batteries, each with 2000 mA-hr capacity, connected as shown will provide ________ watt-hrs? • 4000 • 4 • 20 • 10 SD-CP-Sc-3 + 2V Vo 3V -

  5. SD-CP-Sc-4 The Pampa is found primarily in which country? a. Argentina b. Brazil c. Bolivia d. Venezuela

  6. SD-CP-Sc-5 The largest earthquake in Chile, magnitude 9.5 on the Richter scale, occurred in _______. a. February 2010 b. May 1960 c. December 1940 d. July 1920

  7. SD-CP-Sc-6 To increase the lift, a pilot can a. change the ailerons b. decrease the angle of attack c. increase the forward speed d. decrease the forward speed

  8. SD-CP-Sc-7 If a plane is traveling at a constant velocity ___. a. the thrust is greater than the drag and the lift is greater than the weight b. the net force is zero c. the thrust is greater than the weight and the lift is greater than the drag d. the thrust is greater than the lift and the drag is greater than the weight

  9. SD-CP-Sc-8 Compared to a single battery, two identical batteries connected in parallel provide ____. a. less voltage across the circuit b. more voltage across the circuit c. more power to the circuit d. more energy to the circuit

  10. SD-CP-Sc-9 Compared to a single battery, two identical batteries connected in series provide _____. a. less power to the circuit b. more power to the circuit c. less voltage to the circuit d. more voltage to the circuit

  11. SD-CP-Sc-10 What process makes up the majority of oil refining? A. Centrifuge B. Sifting C. Distillation D. Screening

  12. SD-CP-Sc-11 Bolivia has _____ million tons of lithium*, _____ more than Chile, which only has 3 million tons*. A. 7, 4 B. 10, 7 C. 4, 1 D. 5.4, 2.4 *2009 USGS figures

  13. SD-CP-Sc-12 To which group of metals does lithium belong? A. Rare earth metals B. Halogens C. Alkali metals D. Transition metals

  14. SD-CP-Sc-13 Given the redox reaction: 2I-(aq) + Br2(l) -> 2Br-(aq) + I2(s) What occurs during this reaction? A. The I- ion is oxidized, and its oxidation number increases. B. The I- ion is oxidized, and its oxidation number decreases. C. The I- ion is reduced, and its oxidation number increases. D. The I- ion is reduced, and its oxidation number decreases.

  15. SD-CP-Sc-14 Given the reaction:     __Mg + __Cr3+ -> __Mg2+ + __Cr When the equation is correctly balanced using smallest whole numbers, the sum of the coefficients will be: A. 10 B. 7 C. 5 D. 4

  16. SD-CP-Sc-15 Considering that potassium ions are in extracellular fluids creating cellular potentials, the intracellular fluids contain: A. anions. B. cations. C. both anions and cations. D. None of the above

  17. SD-CP-Sc-16 What is the best definition of “threshold potential”? A. The membrane potential to which the membrane should never reach B. The membrane potential to which the membrane will never reach; also called the ultimate potential C. The membrane potential to which the membrane must maintain at all times D. The membrane potential to which the membrane must be polarized to initiate an action potential

  18. SD-CP-Sc-17 Airfoils, which force particles to move faster than they would when passing over flat surfaces, creates: A. Lower air pressure B. Higher air pressure C. Lower velocity D. No difference in pressure nor velocity

  19. SD-CP-Sc-18 .Where do negatively charged anions move in relation to an anode? A. Away from B. Towards C. Depends on the overall charge of the anion D. All of the above

  20. SD-CP-Sc-19 A fan or lobe-shaped galcier, located at the front of a mountain range is called a _________. a. Piedmont glacier b. Valley glacier c. Tidewater glacier d. Cirque glacier

  21. SD-CP-Sc-20 • The Patagonia icefields of ____ and _____ are the largest non-Anarctic ice masses in the southern hemisphere. • Chile and Bolivia • Ecuador and Peru • Argentina and Chile • Bolivia and Ecuador

  22. SD-CP-Sc-21 Plants that grow in a tundra biome include all of the following except: Lichens Sedges Flowers Firs

  23. SD-CP-Sc-22 Animals living in the Andes tundra biome adapt to the environmental conditions by having ________? Shorter legs and ears Extra layer of fat Larger lungs Periods of hibernation All of the above

  24. SD-CP-Sc-23 Alteration of the structure of molecules in the refining process of gasoline can be done by ________? a. Distillation b. Alkynation c. Reforming d.Cracking

  25. SD-CP-Sc-24 Which of the following birds are not native to the Andes? Condor Caracara Flamingoes Alpine geese

  26. SD-CP-Sc-25 The patagonian region of South America averages about _____ of snow per year. 200 cm 2 mm 20 cm 20 mm

  27. End of Science Round 2010/2011 Senior Super Bowl Area Contest

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