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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. Believed that the natural state of objects was to be at rest






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






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






4. Equals total momentum after collision






5. Time required to complete one cycle






6. 2 -700 kg/m^3






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






8. 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).






9. V x A= constant






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






11. Current x resistance






12. Heat into system - work done by system






13. Net force=0 net torque=0






14. The force that brings a system back to equilibrium






15. 11 -000 kg/m^3






16. V x A= constant






17. V1 x A1=v2 x A2






18. ?






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






20. Work done / heat in






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






22. Mass x gravity






23. Sounds above 20 -000 Hz






24. 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.






25. 100 -000 n/m^2






26. Kg/m^3






27. 18600 miles/sec






28. The combination of force and point of application






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






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






31. A disturbance that propagates through a medium






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






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






34. It increases






35. 9/5T(C)+32






36. Decreases






37.






38. 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.






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






40. Speed of light / wavelength






41. 100 -000 n/m^2






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






43. Maximum displacement from equilibrium






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






45. Force x lever arm






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

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47. The level stays the same






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






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






50. Force per unit area