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






2. A fairly typical main sequence star.






3. 1. incline plane2. wheel and axle 3. lever 4. pulley 5. wedge 6. screw






4. Protects and supports the cell






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






6. As pressure increases volume decreases


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






8. 1. positive charge 2. located in nucleus 3. mass is 1 AMU






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






10. 1. mutualism 2. parasitism 3. commensalism






11. Occurs when light returns after bouncing off an object.






12. Pulls apart into two separate cells






13. Plants response to gravity






14. Occurs when chemical composition of a substance is altered.






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






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






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






18. The quantity of substance






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






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






21. The amount of matter that makes up an atom. You can estimate an atom's atomic mass by adding up the total number of protons and neutrons.






22. As a nebula contracts - the particles collide with colossal force igniting a nuclear reaction and forming a protostar.






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






24. 1. homeostasis 2. organization 3. metabolism 4. growth 5. adaptation 6. response to stimuli 7. reproduction






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






26. Is the particular wavelength of light we observe that is not absorbed by an object.






27. Matter and energy have the properties of both particles and waves






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






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






30. Calories






31. Control center of the cell






32. 1. producer 2. primary consumer 3. secondary consumer 4. tertiary consumer 5. decomposer






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






34. Asserts that organisms have changed over time to adapt to the unique and varied demands of their changing environments.


35. The point around which a lever rotates






36. Stores food and other materials needed by the cell






37. Energy in motion






38. An atom with an imbalanced charge






39. Duplicates genetic material






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






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






42. Is the measure of the presence of hydrogen ions in a substance.






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






44. Material inside the cell membrane -- not including the nucleus






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






46. The number of protons a particular type of atom has. The atomic number defines the type of element.






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






48. 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.






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






50. When the Moon and the Sun are in alignment we get more extreme tides.