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






2. As a balloon rises in a tank of water what happens to the temperature inside it? Why would this happen?






3. What gas is evolved when copper is placed in a nitric acid (HNO3) solution? This is what type of rxn?






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






5. What does the empirical formula show?






6. Beta decay is the same as what?






7. The force on an electrical charge is what?






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






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






11. 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?






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






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






15. If you are told to find the maximum number of NiCo3 that can form how do you do that?

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






17. What is conserved in an inellastic collision?






18. When does red litmus paper turn blue?






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






20. What kind of geometry is octahedral?






21. Half-sine wave shape is what kind of wavelength with regards to length?






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






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






24. What color is above 656 nm?






25. In general what is formed by an acid-base rxn?






26. 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?






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






28. 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?






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






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






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






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






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






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






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






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






37. What is usually conserved over oscillation periods?






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






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






41. 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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42. The basicity constant Kb measures what?






43. 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?






44. 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?






45. 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?






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






47. A pendulum moves under the influence of what?






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






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






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