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CSET Subject 2: Science

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. Radioactively decay back into their 'normal' forms over time






2. An object in motion stays in motion along a straight path unless acted upon by a net external force.






3. Occurs when light is bent while passing from one medium into another.






4. Has a pair of chromosomes






5. 1. temperature (think movement) 2. pressure






6. Are a progressive disturbance propagated from point to point (with regularity between points)






7. Are caused by the gravitational pull of the Moon and the Sun on the Earth.






8. Is a method of separating ions within a substance by passing electrical current through the substance






9. The Moon and the Sun are on opposite sides of the Earth.






10. A fairly typical main sequence star.






11. That space and time are relative - not absolute concepts






12. Causes salt to move across a permeable membrane from an area of greater salinity to an area of lesser salinity.






13. One member of a symbiotic relationship benefit.






14. 1. gravity 2. magnetism 3. friction (think of a falling sheet of paper vs. a falling book)






15. Is something that starts a chemical reaction - such as a spark.






16. Within compounds - the various atoms making up molecules are held together by...






17. That matter cannot be created or destroyed; it simply changes form.






18. It spreads the work over a greater distance along the planes of the wedge.






19. 1. neutral charge 2. located in the nucleus 3. mass is 1 AMU






20. Require a medium and travel much slower than light.






21. 1. convergent 2. divergent 3. transform






22. The point around which a lever rotates






23. Force = Mass X Acceleration






24. Protects and supports the cell






25. Are affected by the angle from which we view the moon.






26. A bond in which on atom loses an electron to form a positive ion and the other gains an electron to form a negative ion - creating an electrostatic force which holds them together.






27. Can occur by chemical means such as acid rain or physical means - such as wind - rain and ice.






28. Illustrates the relationship between absolute magnitude - luminosity - classification and effective temperature of stars.






29. A change in position






30. This is the motion of objects emitting or reflecting sound waves changing their frequency.






31. Both members of a symbiotic relationship benefit






32. Forms the key building block at an atomic level.






33. 1. the more massive either or both bodies are - the greater the gravitational force between them. 2. the further apart two bodies are - the lesser the gravitational force between them.






34. The types of organisms an ecosystem can support is primarily determined by the amount of...






35. Is a substance that cannot be separated into simpler substances by chemical means






36. Energy changes forms but is not created or destroyed.






37. Unless an object is moving in a vacuum - the object causes...






38. Is a change from one state to another without a change in chemical composition.






39. Stores food and other materials needed by the cell






40. Has the same number of protons and neutrons






41. The time required by half the atoms of a particular substance to disintegrate






42. The Moon is between the Earth and the Sun.






43. An ion






44. 1. egg 2. larvae 3. pupae/crysalis 4. imago/adult butterfly






45. Thin - flexible barrier around a cell; regulates what enters and leaves the cell






46. An isotope created in the earth's atmosphere by cosmic rays. All living things absorb carbon 14. When they die absorption stops and the organism's existing C14 begins to radioactively decay back to C12.






47. The measure of the kinetic energy in a substance's molecules. Simply - temperature is atomic motion.






48. By wind which stirs the ocean's surface of great distances.






49. 1. egg 2. tadpole (breathes water) 3. metamorphosis 4. adult frog (breathes air)






50. 1. negative charge 2. located in the nucleus 3. mass is about 1/1836th of an AMU