1. Jeopardy Jeopardy PHY101 Chapter 4 Review Study of Matter

2. BasicsPressureDensity Fluid Equations Buoyancy Potpourri $100 $200 $300 $400

3. Basics $100 What are the parts of an atom? ANSWER

4. Basics $200 Atoms combine to form

5. ANSWER Basics $300 What are the 4 states (phases) of matter?

6. ANSWER Basics $400 What is a fluid?

7. Pressure $100 ANSWER What is pressure?

8. ANSWER What is atmospheric pressure? Pressure $200

9. ANSWER Pressure $300 What does a barometer do?

10. Pressure $400 ANSWER What are the units of pressure?

11. Density $100 ANSWER What is density?

12. Density $200 ANSWER What is weight density?

13. Density $300 ANSWER What are the units of density?

14. Density $400 ANSWER What is the density of water?

15. Fluid Equations $100 ANSWER What is the law of fluid pressure?

16. Fluid Equations $200 ANSWER What is the equation of continuity?

17. Fluid Equations $300 ANSWER What is Bernoulli’s Principle?

18. Fluid Equations $400 ANSWER What is Pascal’s Principle?

19. Buoyancy $100 ANSWER If an object is submerged, it will displace its ________ in fluid.

20. Buoyancy $200 ANSWER What is specific gravity?

21. Buoyancy $300 ANSWER What is Archimedes Principle (Buoyancy force)?

22. Buoyancy $400 ANSWER What would happen if you placed an ice cube in pure vodka?

23. Potpourri $100 ANSWER A hollow sphere has an average density of 6 g/cm 3 and a mass of 12 g. What is the volume of the sphere?

24. Potpourri $200 ANSWER On a day when a water barometer reads 10 m, what is the total pressure at the bottom of a 30-m deep tank of water? a. 1 atm b. 2 atm c. 3 atmd. 4 atm

25. Potpourri $300 ANSWER On a day when the mercury column in a barometer on top of a mountain stands 40 cm tall, how high would the column in a water barometer be? The density of mercury is 13.6 times that of water. a. 368 cmb. 500 cmc. 544 cmd. 680 cm

26. Potpourri $400 ANSWER A hollow sphere has an average density of 3 g/cm 3 and a mass of 15 g. What will the sphere weigh under water? a. 45 mN b. 98 mN c. 85 mN d. 80 mN 1 mN =.001 N

27. Basics $100 Answer Back to Jeopardy What are the parts of an atom? Proton positive charge in the nucleus of an atom. Atomic # (Z) = # of protons determines element Neutron neutral particle in the nucleus of an atom. Neutron # (N) = # of neutrons determines isotope Electron negative charge in the outer shell of an atom.

28. Basics $200 Answer Back to Jeopardy Atoms combine to form Molecules.

29. Basics $300 Answer Back to Jeopardy What are the 4 states (phases) of matter ? Solid Rigid; retain their shape unless distorted by a force. Liquidflows readily; conform to the shape of a container; fixed volume Gasflows readily; conform to the shape of a container; no fixed volume Plasmasuperheated ionized gas

30. Basics $400 Answer Back to Jeopardy What is a fluid? Fluids flow. Liquids, gases, and plasmas are fluids.

31. Pressure $100 Answer Back to Jeopardy What is pressure? The force per unit area for a force acting perpendicular to a surface. Pressure = F/A

32. Pressure $200 Answer Back to Jeopardy What is atmospheric pressure? P ATM = 101 kPa = 14.7 psi = 760 mm of mercury (Hg)

33. Pressure $300 Answer Back to Jeopardy What does a barometer do? Measures atmospheric pressure

34. Pressure $400 Answer Back to Jeopardy What are the units of pressure? SI 1 N/m² = 1 Pascal = 1 Pa cgs 1 dyne/cm² common 1 pound/inch² = 1 psi 1 psi = 6890 Pa = 68900 dyne/cm²

35. Density $100 Answer Back to Jeopardy What is density? The mass per unit volume of a substance. Density = D = m/V

36. Density $200 Answer Back to Jeopardy What is weight density? The weight per unit volume of a substance. Density Weight = DW = Weight/V

37. Density $300 Answer Back to Jeopardy What are the units of density? SI 1 kg/m³ cgs 1 g/cm³ = g/ml common 1 slug/ft³ or Weight density in lbs/ ft³ 1 kg/m³ = 0.001 g/cm³ = 2.42 slug/ft³

38. Density $400 Answer Back to Jeopardy What is the density of water? D WATER = 1000 kg/m³ = 1 g/ml = 62.4 lbs/ft³

39. Fluid Equations $100 Answer Back to Jeopardy What is the law of fluid pressure? The pressure at any point in a fluid is determined by the weight of the fluid above.  P = Dgh

40. Fluid Equations $200 Answer Back to Jeopardy What is the equation of continuity? Flow rate = R = Volume/time = constant R = A 1 *v 1 = A 2 *v 2

41. Fluid Equations $300 Answer Back to Jeopardy What is Bernoulli’s Principle? P 1 + Dv 1 ²/2 + Dgy 1 = P 2 + Dv 2 ²/2 + Dgy 2

42. Fluid Equations $400 Answer Back to Jeopardy What is Pascal’s Principle? Any additional pressure in a fluid is passed on uniformly throughout the fluid.  P = F 1 /A 1 = F 2 /A 2

43. Buoyancy $100 Answer Back to Jeopardy If an object is submerged, it will displace its VOLUME in fluid.

44. Buoyancy $200 Answer Back to Jeopardy What is specific gravity? SG = Density pf object/Density of water If an object sinks, SG > 1 If an object floats. SG < 1

45. Buoyancy $300 Answer Back to Jeopardy What is Archimedes Principle (Buoyancy force)? The upward buoyancy force on an object partly or completely immersed in a fluid is equal to the weight of the fluid displaced. B = mg FLUID = D FLUID gV

46. Buoyancy $400 Answer Back to Jeopardy What would happen if you placed an ice cube in pure vodka? It would sinks. Ice is less dense than water but more dense than alcohol.

47. Potpourri $100 Answer Back to Jeopardy A hollow sphere has an average density of 6 g/cm 3 and a mass of 12 g. What is the volume of the sphere? V = m/D = 2 cm³

48. Potpourri $200 Answer Back to Jeopardy On a day when a water barometer reads 10 m, what is the total pressure at the bottom of a 30-m deep tank of water? a. 1 atm b. 2 atm c. 3 atm d. 4 atm 1 atm for air and 3 atm for water = 4 atm

49. Potpourri $300 Answer Back to Jeopardy On a day when the mercury column in a barometer on top of a mountain stands 40 cm tall, how high would the column in a water barometer be? The density of mercury is 13.6 times that of water. a.368 cmb. 500 cmc. 544 cmd. 680 cm Ht of Water = 40cm * 13.6 = 544 cm

50. Potpourri $400 Answer Back to Jeopardy A hollow sphere has an average density of 3 g/cm 3 and a mass of 15 g. 1 mN =.001 N What will the sphere weigh under water? a.45 mN b. 98 mN c. 85 mN d. 80 mN Volume = 15g/(3 g/cm 3 ) = 5 cm³ Weight of object = mg = 147 mN Weight of water = m W g = 49 mN Total Weight in water = 98 mN

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