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CSET Subtest II: Science -Chemistry - Physics - Astronomy

Subjects : cset, 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 largest heavenly bodies that orbit the sun






2. The study of energy transformations that occur in a collection of matter






3. Any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singlely or in combination constitute all matter






4. The bending of a light wave at the coundary between two substances.






5. The simplest structural unit of an element or compound Composed of several bonded atoms.






6. Kinetic Energy of molecular motion






7. A measure of the intensity of heat in degrees - reflecting the average kinetic energy of the molecules.






8. A concentration of Stars






9. The process of producing a chemical compound usually by the union of simpler chemical compounds.






10. Compounds that reduce the concentration of hydrogen ions in a solution






11. The beginning of scientific wisdom. Can it be measured?






12. Due to a body's position.






13. 237000 miles






14. The product of force and distance; it measures the action performed on an object.






15. The intermingling of molecules in gases and liquids as a result of random thermal agitation






16. Mass per unit volume






17. From a body's motion






18. A nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy






19. The total range of frequencies for electromagnetic waves - including radio and light waves.






20. A cooler darker spot appearing periodically on the sun's photosphere






21. Compounds that form hydrogen ions when dissolved in water






22. (physics) the capacity of a physical system to do work






23. Substances that cannot be split into simpler substances by ordinary chemical means.






24. The elements of Group 1 of the periodic table - lithium - sodium - potassium - rubidium - cesium - and francium.






25. A chemical reaction in which a compound is broken down into simpler compounds or elements.






26. In order of increasing atomic number in which a pattern of recurring physical and chemical properties is displayed.






27. Protons - Neutrons - Electrons






28. (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight






29. German physicist whose explanation of blackbody radiation in the context of quantized energy emissions initiated quantum theory (1858-1947)






30. (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere






31. The distance that light travels in a vacuum in 1 year






32. The transmission of heat or electricity or sound






33. An immense cloud of gas (mainly hydrogen) and dust in interstellar space






34. Equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element






35. A meteoroid that does not completely burn up in the atmosphere and strikes the surface of a moon or planet






36. The science of the substances that make up our world.






37. A value that indicated the acidity or alkalinity of a solution on a scale of 0-14 - based on the proportion of H+ ions. - p - otential of H- ydrogen






38. The flow of electrons....Direct Current DC flows in one direction and Alternatin Current AC periodically reverses the direction of flow.






39. The lowest temperature theoretically attainable at which the kinetic energy of atoms and molecules is minimal 0 Kelvin or -273.15 Centigrade or -459.67 Fahrenheit






40. The smallest component of an element having the chemical properties of the element






41. A homogeneous mixture of two or more substances






42. A huge ball of incandescent gases. - our closest star - has a life - span of 10 billion years






43. Polish astronomer who produced a workable model of the solar system with the sun in the center (1473-1543)






44. Earth's axis tilted - causes sunlight to hit at different angles - 21 March - 21 June - 21 September - 21 December

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45. A chemical process in which a compound is broken down and changed into other compounds by taking up the elements of water.






46. Substances formed by the joining of elements through chemical bonding. every molecule of a compound is the same.






47. Exists where the number of negative electrons does not precisely equal the number of positeve protons.






48. An atom that has the same number of protons (or the same atomic number) as other atoms of the same element do but that has a different number of neutrons (and thus a different atomic mass) Stable or Radioactive






49. Mass per unit volume of a substance.






50. Any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)