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






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






3. 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?






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






5. Kb is the equilibrium constant for what?






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






7. How do you balance redox rxns?

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8. The freezing point of an aqueous solution is what kind of property? What does this mean?






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






10. What is the magnetic quantum number?






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






12. What is usually conserved over oscillation periods?






13. What is the equation for work done?






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






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






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






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






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






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






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






21. if lead is successively preciptated as PbSO4 - PbI - and PbCO2 - which is less soluble than which? Thus which anions will be precipitated first?






22. Can a catalyst shift equilibrium?






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






24. How do you figure out the literature Ksp value of a compound?






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






26. What is one faraday equal to?






27. If you are given a table of substances and are told to find which two show effect of molecular weight on melting point alone - which two substances should you look for?






28. The coefficient of static friction is the ratio of what?






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






30. What is the angular momentum quantum number (l)? It is the same as what? What does an S orbital appear to look like? What would it's (l) be?






31. 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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32. In radioactive decay the atomic number (A) and mass number (Z) must what?






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






34. What would the force be of a block on a pulley? What would be its displacement?

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






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






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






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






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






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






41. If melting pt of a substance is 80 degrees - then what is the diff in time the substance melts when it is either placed in 100 degree test tube and 90 degree test tube?






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






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






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






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






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






48. When does red litmus paper turn blue?






49. What are the three separate module for tensile stress - shear stress - and compression/expansion?

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