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 effectiveness of a material in conducting heat






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






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






4. 1 / period (time)






5. 1 / period (time)






6. P + density x g h






7. Work done / heat in






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






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






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






11.






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






13. The combination of force and point of application






14. Sounds below 30 Hz






15. ?






16. 1.25 kg/m^3






17. Length of a wave






18. Force per unit area






19. P x u x A






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






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






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






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






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






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






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






27. Pascal (Pa) or pounds per square inch (psi)






28. Voltage / current






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






30. 11 -000 kg/m^3






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






32. It increases






33. 5/9 [T(F)-32]






34. Net force=0 net torque=0






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






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






37. 11 -000 kg/m^3






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






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






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






41. The effectiveness of a material in conducting heat






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






43. Mass x gravity






44. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s






45. 2 -700 kg/m^3






46. 1.25 kg/m^3






47. ?






48. Change in velocity / time






49. Change in velocity / time






50. 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.