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






2. Protons - Neutrons - Electrons






3. Due to a body's position.






4. The largest heavenly bodies that orbit the sun






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






6. All objects in the universe attract each other through gravitational force. Size of force depends on mass and distance






7. The energy released by a fission or fusion reaction; the binding energy of the atomic nucleus






8. A liquid substance capable of dissolving other substances






9. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected






10. Travels around the earth each month.






11. An imaginary line around the Earth parallel to the equator






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






13. Describe by stating an ogjects position - velocity and acceleration.






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






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






16. The upward force on an object immersed in a fluid.






17. A negatively charged sub atomic particle; located outside the atomic nucleus Forms a cloud around the atomic nucleus. Electron movement constitutes electrical current.






18. Occurs when the Moon happens to lie exactly between the Earth and the Sun - or when the Earth lies exactly between the Sun and the Moon so that all three bodies lie on a straight line.






19. Nuetral charge and equal number of protons and electrons






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






21. A configuration of stars as seen from the earth






22. The branch of physics that studies celestial bodies and the universe as a whole






23. 1. Atoms are divisible 2. An element can have atoms with different masses.






24. The law that states that for a fixed amount of gas at a constant temperature - the volume of the gas increases as the pressure of the gas decreases and the volume of the gas decreases as the pressure of the gas increases






25. Occurs whent the fission on one atom causes the fission of other atoms






26. The periodic rise and fall of the sea level under the gravitational pull of the moon






27. The mechanical energy that a body has by virtue of its motion






28. How bright a star will be in relation to the sun if all star were the same distance from the observer






29. (physics) the force of attraction between all masses in the universe






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






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


32. Nuclear reaction - small element atom fuses to form element with large atoms releasing large amounts of energy - elements coming together to make bigger atoms






33. A process in which a substance reacts with oxygen to release heat and light






34. The name of our galaxy - a spiral galaxy that contains about 400 billion stars






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






36. The apparednt change of pitch due to differing motions of the souding source and a listener.






37. A unit of measure of electrical potential;






38. 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






39. French chemist known as the father of modern chemistry






40. Energy may be changed from one formto antoher but it cannot be created or destroyed






41. The time required for one half of the atoms of a radioisotope to emit radiation an decay products






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






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






44. Conjectured that heavenly bodies were affixed to crystalline spheres concentric about the earth.






45. One thousand grams






46. A star that ejects some of its material in the form of a cloud and become more luminous in the process






47. The attraction between molecules that results in the rise of a liquid in small tubes






48. The total kinetic and potential energy of all the particles in a substance.






49. From a body's motion






50. Going from gas to solid Example: dry ice= carbon dioxide Going from solid phase to gas phase