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 / period (time)






2. Decreases






3. Current x resistance






4. The total disorder of an object






5. Force x lever arm






6. 1.25 kg/m^3






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






8. 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.






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






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






11. C/n






12. Net force=0 net torque=0






13. Weight of displaced water=volume of displaced water in liters x 10 n / liter






14. 100 -000 n/m^2






15. Mass x gravity






16. 11 -000 kg/m^3






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






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






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






20. Not easy to knock over






21. Work done / heat in






22. 25%






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






24. The force that brings a system back to equilibrium






25. Kg/m^3






26. 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.






27. 11 -000 kg/m^3






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






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






30. 9/5T(C)+32






31. V x A= constant






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






33. 1.25 kg/m^3






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


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






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






37. Kg/m^3






38. T(C) +273






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






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






41. C/n






42. Equals total momentum after collision






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






44. Voltage / current






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






46. The study of how objects behave (from the very tiny to the very big - and from the beginning of the Universe to its ultimate fate).






47. F=mass x acceleration


48. 18600 miles/sec






49. Initial velocity = acceleration x time






50. Sounds above 20 -000 Hz