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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. 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






2. 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






3. When foreign substances are dissolved in water it creates a solution - Solutions with a pH of less than 7.0 are said to be acidic - and solutions with a pH greater than 7.0 are said to be basic or alkaline






4. Seems to travel in perfectly straight lines as rays - The direction of a ray changes at the interface between two transparent materials - like air and water






5. Results when electrical charges buildup or increase on the surface of a material - here - there is no current flowing as would be found in electrical outlets - When certain materials are rubbed together - electrons can move from one object to the oth






6. Some of the light is reflected - the angle of reflection being equal to the...






7. State the specific plan on how to test the hypothesis - Create a written - step - by - step procedure - Determine the variables (any factor that can change in an experiment)






8. A temperature interval of one degree F is an interval of 5/9 of a degree C - The Fahrenheit and Celsius scales coincide at -40






9. The terms gravitation and gravity are mostly interchangeable in everyday use - refers specifically to the gravitational force exerted by the earth on objects in its vicinity






10. 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






11. Account for 17 elements in the periodic table - Lack the properties of metals but are very common - Include oxygen - nitrogen - and carbon - 7 metalloid elements - and 7 gases - Poor conductors of electricity






12. Solids - liquids - and gases






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. Mechanical advantage of an inclined plane is the ______________ it spans - The inclined plane allows the same work to be done with a smaller force exerted over a greater distance Example: ramp






15. 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






16. Relies on the the first law - The acceleration of an object is proportional to the force applied (the more force - the more acceleration)

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17. Symbol: H Protons: 1 Neutrons: 0 Mass: 1






18. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)






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






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






21. 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






22. Other indicators of the ________ of an acid are that when acids react with metals - hydrogen gas is released causing bases to feel soapy when touched






23. 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






24. Symbol: O Protons: 8 Neutrons: 8 Mass: 16






25. Energy can be neither created nor destroy






26. 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






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






28. A rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object - Examples: wheelbarrow (the wheel works as the fulcrum) - scissors (the fulcrum is where the blades cross)






29. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight






30. The portion of the light that crosses the boundary is - however - deflected in another direction - and the ______ does not equal the angle of incidence






31. The number of waves produced in a given time






32. A wave's height - the distance between its resting position and its crest






33. Multiply force but do not change the direction of the input force End: Fulcrum Middle: Output force Other end: Input force Examples: wheelbarrows - baby strollers - bottle openers






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






35. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts






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






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. A degree on the Fahrenheit scale is 1/180th of the interval between the __________ and boiling point






39. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object






40. The number of protons of that element - No two elements have the same atomic number - Elements in the periodic table are arranged in order of increasing atomic number






41. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms






42. However - a fluorescent lamp converts electrical power into useful light more __________ than an incandescent lamp; lower energy costs offset the higher initial cost of the lamp






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






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. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects






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






47. If the pressure increases - the volume decreases; the reverse is true as well

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48. 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






49. 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






50. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration







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