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CSET Physical Science 3

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. Symbol: U Protons: 92 Neutrons: 146 Mass: 238






2. Temperature scale named after the German physicist Daniel Gabriel Fahrenheit (1686-1736) - who proposed it in 1724 - On this scale - the freezing point of water is 32






3. A compound composed of one atom of sodium and one atom of chlorine (NaCl - sodium chloride)






4. A water - soluble mixture of different dyes extracted from lichens - It is often absorbed onto filter paper






5. Transferring of heat by emission and dissemination of waves or particles - Generated when heat from the movement of charged particles within atoms is converted to electromagnetic radiation - Electromagnetic radiation emitted from the surface of an ob






6. Salt has a ___________ than water and therefore doesn't evaporate with the water






7. Metals account for the vast majority of the elements in the periodic table - Show a wide range of chemical and physical properties - Most metals are good conductors of heat and electricity - and some - like iron and cobalt - are magnetic - Many metal






8. Protons have a __________ electrical charge - and neutrons have no charge






9. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment






10. Characterized by their ability to retain their shape - Relatively incompressible - Melt when heated and vaporize only slightly - All substances become solid if cooled sufficiently Examples: rocks - crystals - wood - feather - ice






11. A change of one substance into a different substance - Occurs whenever compounds are formed or decomposed - During this reaction - there is a rearrangement of atoms that makes or breaks chemical bonds - This change is usually not reversible - unlike






12. Known as insulators - In materials that act as insulators - the electrons are held tightly inside their atoms and the electrons cannot move freely - Include plastic - rubber - glass - air - and wood






13. A compound and portable inclined plane - A triangular - shaped tool used to separate two objects or portions of an object - lift an object - or hold an object in place - It functions by converting a force applied to its blunt end into forces perpendi






14. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)






15. The law of inertia - Without outside forces (such as gravity or friction) - an object at rest will remain at rest - while an object in motion will never stop or deviate from its course

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16. Resistance to plastic (permanent) deformation due to a constant load from a sharp object






17. A natural phenomenon by which objects with mass attract one another - Compels dispersed matter to coalesce - and thus it accounts for the very existence of the earth - the sun - and most of the macroscopic objects in the universe - Responsible for ke






18. The ratio of the output to the input force - Also called leverage - Results in less force applied over a greater distance - Helps to make work easier






19. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)






20. Explains why objects appear bent as light passes from one transparent object into another - Light travels at different speeds through different objects (faster through air than through water or glass) - Responsible for rainbows and for the splitting






21. Elements with similar properties fall into the same vertical columns on the preriodic table to form _____ - Properties of elements change greatly across any one row (period)






22. The top of a wave's 'hill'






23. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0






24. The distance between two consecutive points on a wave (crest to crest)






25. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam

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26. An electric current also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism - Recent work has united these phenomena - as well as light - into electromagnetic radiation






27. A hypothesis is an attempt to answer the question or predict the outcome - - A hypothesis is a possible explanation for a set of observations






28. This is the one factor that will be intentionally changed during the experiment. Examples include changing the amount of salt that is added to water to determine its freezing point; introducing different soil types in germinating seeds; and changing






29. Unlike incandescent lamps - fluorescent lamps always require a ______ to regulate the flow of power through the lamp






30. Symbol: Fe Protons: 26 Neutrons: 30 Mass 56






31. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring






32. Displayed by permanent magnets and around electric currents






33. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)






34. A first - class lever - In its simplest form it consists of a rod attached to a wheel so that their movements are coupled when one of the parts is turned






35. Atoms are made up of several tiny parts - At the center of an atom is a core called the __________ - which is made up of particles called protons and neutrons






36. Symbol: C Protons: 6 Neutrons: 6 Mass: 12






37. Form a question (state the problem) - A scientific question is one that can be answered on the basis of evidence and that can be measured - The question often asks - 'What effect will something have






38. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)






39. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected






40. The number of waves produced in a given time






41. The shortest wavelength; red is the longest






42. As of 2006 - the table contains _____ chemical elements whose discoveries have been confirmed - 94 are naturally found on the earth - and the rest are synthetic elements that have been produced artificially in particle accelerators






43. List the specific materials to be used in the experiment - This allows for replication of the experiment






44. Transition of heat through a medium - From a region of higher temperature to a region of lower temperature - Heat energy is transferred from one material to another by direct contact - Metals are good conductors of heat






45. Makes it possible for some elements and compounds to transition from a solid to gas phase without becoming a liquid Example: a block of dry ice (CO2) - which will turn into a gas at room temperature






46. A conclusion is a summary and an explanation of the results of an experiment - Does the data support the hypothesis? If not - a new hypothesis can be formed






47. For a homogeneous object - density is determined by dividing the mass by the volume (D = M/V) The mass is normally measured with an appropriate scale or balance - The volume may be measured directly (from the geometry of the object) or by the displac






48. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs






49. Symbol: He Protons: 2 Neutrons: 2 Mass: 4






50. After a rainstorm - the air is full of tiny drops of water - Each drop acts as a prism - splitting the light into the colors of the spectrum






Can you answer 50 questions in 15 minutes?



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