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






3. What is a metathesis rxn?






4. 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?






5. How do you find wavelength if you known distance from adjacent crests and troughs?






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






7. If you have a decrease of pressure to which side of the equation is it equilibrium shifted towards? What about if you increase temperature?

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






9. A plane mirror produces an image where?






10. How do you balance redox rxns?

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11. Nuclear masses can be approximated from what?

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






13. Heat from friction comes from what?






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






15. Why are bonds between H and another atom shorter compared to most?






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






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






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






19. A pendulum moves under the influence of what?






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






21. 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?






22. What is weight equal to?






23. Pressure in a liquid is proportional to what? So why does this explain why blood pressure is greater in legs?






24. 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?






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






26. When looking at which combo of acids and bases will result in a solution with pH of 7 what do we look for?






27. When is a body in translational equilibrium?






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






29. Equivalent mass is what?






30. How do you find moles of a substance when you are given faradays and electrons?






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






32. 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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33. If you have an alcohol with OH on the end and then another cmpd with an O in the middle but no H - what is different between the bonds they can make with water?

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34. If temperature arises during a mixture what can you conclude about the enthalpy?






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






36. How would you find rate of rxn from pH 1 to pH2?






37. What is one faraday equal to?






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






39. What is the equation for work done?






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






41. Mechanical waves in a medium fxn to transport what?






42. When does red litmus paper turn blue?






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






44. What do electrolytic techniques involve?






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






46. What is the equation for pressure?






47. 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?






48. What is the magnitude of the electric field produced by a point charge?






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






50. If any species is gotten rid of when combining two equations of chemical rxns together what can you conclude about those species?