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DSST Physical Sciences2

Subjects : dsst, science
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. In order to increase the kinetic energy of electrons - they must be what?






2. When an element decreases its atomic number by one what is emitted?






3. The boiling point of a solution is what type of property? Which means is depends only on what?






4. The probability of an X-ray emission event at a given wavelength is measured by what?






5. How do you find 'g' from Newton's law of gravity?






6. Is the work done by air resistance - positive or negative?






7. When you are trying to find the buyoancy force of water on a lead object what density do you use in the equation B = pVg? what volume?






8. If asked which electron configuration of an element is most stable which one do you choose?






9. If you have longer wavelengths how is their freq and energy compared to shorter wavelengths?






10. What is the formula for the power supplied by a battery to accelerate an electron beam?






11. What does the empirical formula show?






12. What is a metathesis rxn?






13. Regarding M(OH)2 and you have solubility (S) - what would the Ksp be?






14. What is the principal quantum number (n)?






15. The closer the spacing of the anode wire - the better one can specify what?






16. What is the equation for bouyant force? What is p?






17. If something is very toxic to a human - what Ksp value should it have for it to be the safest?






18. Heat from friction comes from what?






19. What does specific heat of a substance tell you? Thus what does a higher specific heat tell you?






20. Why is it important that the materials used as scintillators are nearly transparent to the wavelength of light they emit?






21. What direction do gravity and bouyancy work? What direction does water pressure work?






22. Acetic acid is a ______ solvent






23. The total pressure of a solution is what? Give example.






24. What is the amt of energy that a frictional force generates?






25. When is a body in translational equilibrium?






26. How do the final velocities differ if a sphere is dropped from a distance rather than rolled down an inclined plane?






27. When you are trying to calculate a galvanic cell's emf - what do you look at?






28. How do you find what is the limiting reagent? You can then use the moles of the limiting reagent to calculate what?






29. What is the magnetic quantum number?






30. Can a catalyst shift equilibrium?






31. How should the period of a waveform be calculated?






32. The square root of 10^anything is equal to what?






33. Hydrogen has what kind of standard oxidation or reduction potential?






34. Does the temperature of a water bath or amount of water in a water bath determines if a substance melts?






35. In Bohr model of atom when is energy emitted?






36. Thus is Zn (which has positive oxidation potential) reacts with HCl - will any rxn take place?






37. So if you are given an equation and it gives you the E^o for both side equations seen in the big equation - what do you do with them?






38. The visible spectrum ranges from ____ to _____






39. In a galvanic and electrolytic cell - reduction of an ion occurs where? Oxidation of an ion occurs where?






40. When the source of a sound is flying away from you what happens to the wavelengths from peak to peak?






41. What energy conversion describes best what takes place in a battery-powered resistive circuit?






42. The range of pH in which a color change takes place in a titration depends on what?






43. What is the doppler equation for wavelength and frequency?






44. The number of incident photons on the cathode affect what?






45. Always remember that velocity has ____ and ____






46. Nuclear masses can be approximated from what?

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47. An oxidation-reduction rxn that occurs spontaneously has what kind of E^o for the cell?






48. The coefficient of kinetic friction is always lower than what? Therefore what?






49. In a healthy person standing at rest - a comparison of arterial blood pressure measured in the arm with that in the leg - shows what about the differences between these pressures?






50. What is sublimation?