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. Pressure x area






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






3. If the CG is above the edge - the object will not fall






4. 11 -000 kg/m^3






5. 1 -000 kg/m^3






6. 1.25 kg/m^3






7. Mass x velocity






8. Voltage / current






9. Why things move






10. Heat is carried from place to place by the bulk movement of either liquids or gasses






11.






12. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)






13. 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.






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






15. Initial velocity= the square root of 2gh






16. Kg/m^3






17. Speed of light / wavelength






18. Why things move






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






20. 9/5T(C)+32






21. T^4






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






23. The level stays the same






24. Time= the square root of 2 x height / acceleration due to gravity






25. You cant get as much out as you put in






26. Heat is transferred directly through a material with no bulk movement of material






27. You cant get as much out as you put in






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






29. It increases






30. F=mass x acceleration

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31. Force x lever arm






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






33. V1 x A1=v2 x A2






34. 2p x square root L/g






35. The center of an object






36. Z+n






37. The combination of force and point of application






38. A disturbance that propagates through a medium






39. A tendency for liquids to resist flowing.






40. Fbottom-Ftop=mg=(density x vol) x g






41. Z+n






42. A disturbance that propagates through a medium






43. A disturbance that moves through something






44. The heat transfer by electromagnetic waves - thermal light waves






45. Initial velocity = acceleration x time






46. P x u x A






47. Sounds above 20 -000 Hz






48. T=2p square root m/k frequency= square root k/m;/2p






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






50. V1 x A1=v2 x A2