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 -000 kg/m^3






2.






3. 1 / period (time)






4. 2 -700 kg/m^3






5. 1 -000 kg/m^3






6. Equals total momentum after collision






7. Work done / heat in






8. Why things move






9. 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.






10. P + density x g h






11. The effectiveness of a material in conducting heat






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






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






14. The combination of force and point of application






15. A tendency for liquids to resist flowing.






16. 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.






17. Number density x temperature






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






19. You can't get more work out than the energy you put in






20. Mass x gravity






21. Sounds below 30 Hz






22. A disturbance that moves through something






23. Velocity squared / radius






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






25. C/n






26. Sounds above 20 -000 Hz






27. Force per unit area






28. Initial velocity= the square root of 2gh






29. Force x lever arm






30. Current x resistance






31. Hf






32. Current x resistance






33. It increases






34. P + density x g h






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






36. 5/9 [T(F)-32]






37. Heat into system - work done by system






38. 11 -000 kg/m^3






39. If energy is transferred and the internal energy of system B decreases by some amount then the internal energy of system A must incrase by the same amount.






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

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41. Why things move






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






43. A disturbance that propagates through a medium






44. Heat into system - work done by system






45. V1 x A1=v2 x A2






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






47. 10 m/s^2






48. Equals total momentum after collision






49. The force that brings a system back to equilibrium






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