Jeopardy

1. Jeopardy Choose a category. You will be given the question. You must give the correct answer. If wrong, click the yellow icon. To return to the Jeopardy categories, click the “home” button. Click to begin.

2. Choose a point value. Choose a point value. Click here for Final Jeopardy

3. Category A Category B Category C Category D Category E 10 Point 10 Point 10 Point 10 Point 10 Point 20 Points 20 Points 20 Points 20 Points 20 Points 30 Points 30 Points 30 Points 30 Points 30 Points 40 Points 40 Points 40 Points 40 Points 40 Points 50 Points 50 Points 50 Points 50 Points 50 Points

4. Select the equipment that would be used to measure the mass of a sample of sodium chloride. Balance beam graduated cylinder beaker meter stick

5. Balance beam

6. Not close!

7. Sean was conducting a chemistry experiment that overheated and caught fire. Select the safety rule Sean most likely failed to follow. wear safety goggles follow the teacher's instructions use tongs to handle hot glassware keep the work space clean and uncluttered

8. follow the teacher's instructions

9. If you thought that you were wrong, you are right!

10. A skier traveling at 30.0 m/s falls and comes to rest 10.0 seconds later. What is her average acceleration? 300 m/s2 3.00 m/s2 -3.00 m/s2 -300 m/s2

11. -3.00 m/s2

12. STOP!

13. Select the situation that will result in the greatest gravitational force between two bodies. large combined mass and small distance apart large combined mass and great distance apart small combined mass and great distance apart small combined mass and small distance apart

15. large combined mass and small distance apart

16. 60 g of KNO3 is added to a beaker of water at 40 degrees, the water is heated to 70 degrees, how much more KNO3 can be added to make a saturated solution? Only 60 grams of KNO3 can be added until the solution is saturated . Only 70 grams of KNO3 can be added until the solution is saturated . Only 80 grams of KNO3 can be added until the solution is saturated . No more grams of KNO3 can be added, solution is already saturated. See Table

18. Only 70 grams of KNO3 can be added until the solution is saturated .

19. A circuit has a resistance of 12 ohms. Select the applied voltage that will result in a current of 10 amps. 1.2 volts 2 volts 22 volts 120 volts

21. 120 volts

22. Which of the following substances is the least chemically reactive? H+ OH- O2- H2O

24. H2O

25. Rodney hammers a 3cm nail into a board, using a single blow that delivers 4 N of force. Which statement correctly describes the amount of work done on the nail? Rodney has performed 12 J of work on the nail. Rodney has 0.12 J of work on the nail. Rodney has performed more than 12 J of work on the nail, because of the friction between the nail and the board. Rodney has performed more than 0.12 J of work on the nail, because of the friction between the nail and the board.

27. Rodney has performed more than 0.12 J of work on the nail, because of the friction between the nail and the board.

28. Plants use sunlight to fuel photosynthesis. Which of the following is the best description of the energy transformation involved in this process? radiant light energy to thermal energy radiant light energy to chemical energy thermal energy to mechanical energy thermal energy to chemical energy

30. radiant light energy to chemical energy

31. Which of the following is true of a molecule? A molecule must consist of covalently bound atoms. A molecule must consist of more than two atoms. A molecule must contain atoms of more than one element that are covalently bonded. A molecule cannot remain bound when dissolved in a solvent.

33. A molecule must contain atoms of more than one element that are covalently bonded.

34. Which of the following substances is an element? steel brass iron pewter

35. iron

36. Too bad!

37. Nuclear medicine involves the use of radionuclides to diagnose and treat various medical conditions. Injection of gamma-emitting radionuclides allows doctors to image internal organs and tissues, using an instrument called gamma camera. Implantation of beta-emitting radionuclide at the site of some kinds of tumor will destroy the cancerous tissue without destroying much healthy tissue, if any. Both procedures are considered very safe by the medical community, but there is a small risk associated with any procedure involving radionuclides. The risk is that the radionuclides could cause a chain reaction in the body. could become unstable and emit a large amount of radiation unexpectedly. consistently emit small doses of radiation that could damage healthy tissue and/or cause cancer. may become trapped in the body.

39. consistently emit small doses of radiation that could damage healthy tissue and/or cause cancer.

40. A speed boat navigates a straight path across a 5 mile section of Thurmond Lake over a period of 25 minutes. On the return trip, the boater was forced to use a zigzag pattern to avoid stationary fishing boats; the return trip also takes 25 minutes. Which of the following statements is NOT true of the return trip? The boater increased the displacement that he traveled on the return trip. The boater increased his velocity on the return trip. The boater increased his average speed on the return trip. The boater increased his acceleration on the return trip.

42. The boater increased the displacement that he traveled on the return trip.

43. The weight of an object is less on the moon because objects on the moon experience a greater acceleration due to gravity. objects on the moon experience a lesser acceleration due to gravity. there are fewer frictional forces on the moon. there are more frictional forces on the moon.

45. objects on the moon experience a lesser acceleration due to gravity.

46. The chain reaction in a fission-powered nuclear reactor is mediated by control rods. The control rods prevent the chain reaction from proceeding too quickly and producing too much heat. Which statement best describes how control rods mediate the chain reaction?The control rods absorb neutrons produced by the joining of small atoms. The control rods absorb neutrons produced by the splitting of large atoms. The control rods absorb electrons produced by the joining of small atoms. The control rods absorb electrons produced by the splitting of large atoms.

48. The control rods absorb neutrons produced by the splitting of large atoms.

49. Emilio pours 10 grams of salt (NaCl) into a saturated NaCl solution. A pile of solid material appears at the bottom of the beaker. What is this material?a precipitate that indicates that a chemical reaction has occurred excess salt that cannot dissolve in the saturated solution a cloud of gas that indicates that the solvent is changing phase solid Na2Cl2, a product of the fusion of two NaCl molecules