Test your basic knowledge |

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






2. Why would a solution with unfilled orbitals be responsible for turning a solution a certian color?






3. Why does light travel slower in an optically dense medium than through a vacuum?






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






5. A cmpd with the lowest carbon to oxygen ratio will require how much oxygen for combustion?






6. The equivalence pt is what part of the titration curve? Thus looking at the range of change between the pH values along this part of the graph can tell you what?

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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. What happens to the atomic number and atomic mass of an element that go under Beta decay or positron emission?






9. How do you find the equiv capacitance of capacitors in series and parallel? What about if you are trying to find equivalent resistance?






10. What is the hybridization of oxygen in water and other oxygens similar to water with two bonds and two lone pairs of electrons?






11. The Ksp for a substance of AaBb is what?






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






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






14. Light can be carried along a distance within a transparent material by means of what?






15. Strength of dispersion force increases with what?






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






17. What does the empirical formula show?






18. The electrical force on a particle depends on what?

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19. If both weight and bouyant force are dependent on g - that makes g independent of what?






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






21. Acetic acid is a ______ solvent






22. When something is falling what is the force acting on it? Thus what would be the work done?

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






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






25. So if you have a voltage of 1/4V it will be reduced by what? Thus what will be the equation for the terminal voltage?






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






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






28. What kind of metals react violently with water?






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






30. How do you balance redox rxns?

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31. What is the equation for a period (T)? What is the equation for angular velocity?






32. What kind of geometry is octahedral?






33. 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?






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






35. How do you find length of time something is in flight? How do you find distance it traveled?






36. An alpha particle can also be assumed to be what element? What is the mass number of Helium?






37. If the source of sound and the listener are traveling side by side at the same speed - what will the change in freq heard by the listener be?






38. Considering the answer in the last slide - what kind of a solution would have a lower freezing pt?






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






40. What is the relationship between P and n in PV=nRT?






41. What is conserved in an inellastic collision?






42. What is the net result on a nucleus when you absorb a deuturon and emit a neutron?






43. Can a catalyst shift equilibrium?






44. What is newton's second law?






45. What is the unit for Young's Modulus?






46. For a given flow rate - the speed of fluid flow is inversely proportional to what?






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






48. If the standard potential for a rxn is negative when it is being reduced (thus a negative reduction potential) that means that the resulting atom has what?






49. The electrons emitted from cathode are replaced with what?






50. When a falling mass is at terminal speed - what is the power expended by the air resistance?