## Test your basic knowledge |

# Everyday Physics

**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. Mass x specific heat x temperature change**

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

**3. C / f**

**4. The level stays the same**

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

**6. The heat transfer by electromagnetic waves - thermal light waves**

**7. Not easy to knock over**

**8. 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.**

**9. Work done / heat in**

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

**11. 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.**

**12. The total disorder of an object**

**13. 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.**

**14. Kg/m^3**

**15. You cant get as much out as you put in**

**16. Sounds below 30 Hz**

**17. The energy that flows from one system to another because of their temperature difference.**

**18. You cant get as much out as you put in**

**19. 2p x square root L/g**

**20. Pascal (Pa) or pounds per square inch (psi)**

**21. Number density x temperature**

**22. Number density x temperature**

**23. V x A= constant**

**24. Hf**

**25. Voltage / current**

**26. 1.25 kg/m^3**

**27. Decreases**

**28. The force that brings a system back to equilibrium**

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

**30. 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.**

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

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

**33. How much torque it takes to get an object rotating**

**34. T(C) +273**

**35. ?**

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

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

**38. 2 -700 kg/m^3**

**39. A disturbance that moves through something**

**40. V1 x A1=v2 x A2**

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

**42. 100 -000 n/m^2**

**43. Time required to complete one cycle**

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

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

**46. Mass x velocity**

**47. Wavelength x frequency**

**48. Solids - liquids - gases**

**49. A disturbance that moves through something**

**50. 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.**