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. Heat into system - work done by system






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






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






4. 5/9 [T(F)-32]






5. 1 -000 kg/m^3






6. Decreases






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






8. A disturbance that propagates through a medium






9. Z+n






10. Force per unit area






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






12. Force per unit area






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






14. V1 x A1=v2 x A2






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






16. P + density x g h






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






18. The first to do experimental studies of the laws of motion and was Imprisoned by Pope Urban VIII in 1633 for advocating the Copernican theory - also know as the heliocentric theory - that the earth was a planet revolving around the sun.






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

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






21. Not easy to knock over






22. Time required to complete one cycle






23. 100 -000 n/m^2






24. 1 / period (time)






25. 9/5T(C)+32






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






27. Distance traveled / time






28. 1.25 kg/m^3






29. 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.






30. Sounds above 20 -000 Hz






31. Current x resistance






32. ?






33. Length of a wave






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






35. C/n






36. 2 -700 kg/m^3






37. 1 / period (time)






38. Are wider at the base (which lowers their center of gravity)






39. Equals total momentum after collision






40. 18600 miles/sec






41. Pressure x area






42. Sounds below 30 Hz






43. Initial velocity= the square root of 2gh






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






45. The energy that flows from one system to another because of their temperature difference.






46. F=mass x acceleration

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47. Mass x specific heat x temperature change






48. Speed of light / wavelength






49. Solids - liquids - gases






50. 5/9 [T(F)-32]