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. 1.25 kg/m^3






2. 18600 miles/sec






3. The center of an object






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






5. ?






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






7. 2p x square root L/g






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






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






10. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.






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






12. Current x resistance






13. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.






14. C/n






15. T(C) +273






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






17. How much torque it takes to get an object rotating






18. V x A= constant






19. Current x resistance






20.






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






22. Mass x velocity






23. Why things move






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






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






26. P x u x A






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






28. The combination of force and point of application






29. Maximum displacement from equilibrium






30. Voltage / current






31.






32. F=mass x acceleration

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33. 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.






34. 1 / period (time)






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






36. It increases






37. Distance traveled / time






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






39. Speed of light / wavelength






40. Mass x gravity






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






42. Fbottom=Ftop+mg where mg is the weight of the volume






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






44. 2p x square root L/g






45. 1 -000 kg/m^3






46. 25%






47. Voltage / current






48. Time required to complete one cycle






49. 11 -000 kg/m^3






50. The effectiveness of a material in conducting heat