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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. The electrons emitted from cathode are replaced with what?






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






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






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






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






6. What is one faraday equal to?






7. At the moment of explosion of an object - what is its momementum? Why? After an explosion what is the total momentum carried by all the fragments?






8. 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?






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






10. Friction is caused by what?






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

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12. In order to increase the kinetic energy of electrons - they must be what?






13. How do you find specific gravity of an object?






14. 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?






15. 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?






16. What type of acid and base would produce a pH closest to 7?






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






18. The volume of an object is equal to water?






19. F in the Young's modulus equation can also equal what? What is E?

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






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






22. In PV=nRT - if temp increases what will happen to volume?






23. What kind of charge is on Al?






24. Acetic acid is a ______ solvent






25. 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?






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






27. A nearsighted person has what type of focal length? Thus what do we do to correct this?






28. What do electrolytic techniques involve?






29. A plane mirror produces an image where?






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






31. If you are given density and volume how do you find mass?






32. Young's modulus is a ________ for a material. What is it's ratio? What would a graph of it look like?






33. What are the units of an electric field?






34. If you have circuit elements in parallel what is the same across them?






35. The free energy change (G) must be negative when what?






36. A pendulum moves under the influence of what?






37. What happens if an atom undergoes positron decay or electron capture?






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






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






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






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






42. What is the equation for work done?






43. If the equation says that the E^o has (-) voltage when being reduced - but it is being oxidized in the problem - what does the voltage then become?






44. Terminal voltage is provided to what?






45. A saturated solution of KNO3 means what? If you add salt that has any of these two ions what will happen? What is this called?






46. What is the equation for pressure?






47. Neither N2 or O2 have a permanent what? What does this mean?






48. What happens to a negatively charged particle put between two parallel plates?






49. The concentration of OH and H30 ions are approximately equal at what pH?






50. The temperature of a metal will not increase above its melting point until what?