Test your basic knowledge |

Everyday Physics

Subjects : science, literacy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The total disorder of an object






2. Distance traveled / time






3. The efficiency with which an object emits thermal radiation. Is a number between 0 and 1. A good emitter has an e close to 1.






4. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.






5. C / f






6. It increases






7. 5/9 [T(F)-32]






8. T^4






9. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.






10. Force x lever arm






11. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +

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12.






13. Pascal (Pa) or pounds per square inch (psi)






14. 100 -000 n/m^2






15. Rod with forces applied at opposite ends in the same direction






16. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +

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17. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.






18. The sum of the energy of all the molecules in the system






19. Kg/m^3






20. The force that brings a system back to equilibrium






21. 1 -000 kg/m^3






22. P + density x g h






23. 100 -000 n/m^2






24. 1.25 kg/m^3






25. 1 / period (time)






26. Force x lever arm






27. Time required to complete one cycle






28. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)






29. A tendency for liquids to resist flowing.






30. Heat into system - work done by system






31. The total force (positive and negative) acting upon an object






32. The study of heat and its transformation into mechanical energy






33. The study of heat and its transformation into mechanical energy






34. Heat Q= mass of sample x specific heat x temp change






35. 18600 miles/sec






36. P(P2-P1)D^4/128Ln n=fluid's viscosity






37. P + density x g h






38. Mass x velocity






39. Rod with forces applied at opposite ends in the same direction






40. Current x resistance






41. The effectiveness of a material in conducting heat






42. Decreases






43. It increases






44. Because nothing stops it






45. Voltage / current






46. The heat needed to raise the temperature of 1 pound of water by 1 degree F






47. Not easy to knock over






48. Because nothing stops it






49. As the speed of a moving fluid increases - the pressure within the fluid decreases

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50. The change in internal energy= the heat absorbed- the work done