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






2. Number density x temperature






3. Voltage / current






4. 1 / period (time)






5. Pressure x area






6. 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.






7. 9/5T(C)+32






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






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






10. V1 x A1=v2 x A2






11. P x u x A






12. Current x voltage energy/time (joules per second)






13. Heat Q= mass of sample x specific heat x temp change






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






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






16. 2p x square root L/g






17. C/n






18. P + density x g h






19. Hf






20. 5/9 [T(F)-32]






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






22. Equals total momentum after collision






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






24. The center of an object






25. Sounds above 20 -000 Hz






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






27. It increases






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






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






30. The combination of force and point of application






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






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






33. Z+n






34. The effectiveness of a material in conducting heat






35. Heat into system - work done by system






36. Maximum displacement from equilibrium






37. 9/5T(C)+32






38. V x A= constant






39. Mass x gravity






40. 10 m/s^2






41. Hf






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






43. The combination of force and point of application






44. Rod with forces applied at opposite ends in opposite directions






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

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






47. 1.25 kg/m^3






48. Z+n






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






50. Why things move