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

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2. 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






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






4. Scratch hardness - indentation hardness - and rebound hardness






5. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)






6. Heat can be converted to motion - and motion can produce heat






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






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






9. Major greenhouse gases






10. The burning of coal also contributes to the formation of...






11. 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






12. 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






13. Designed to separate substances in a liquid through vaporization - Usually carried out in an apparatus called a still - which requires a boiler - a condenser - and a receiver Example: Purify ocean water






14. Rates minerals and puts them on a scale from 1 to 10 (1 is the softest and 10 is the hardest) determined by the ability of a harder mineral to scratch a softer mineral - Talc is at 1 and diamond is at 10

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






16. 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






17. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle






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






19. Composed of only one atom and cannot be separated into different substances except in some instances by radioactive decay or by nuclear reactions






20. 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






21. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density






22. 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






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






24. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity






25. The number of waves produced in a given time






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






27. 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






28. Solids - liquids - and gases






29. 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






30. 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






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






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






33. Some gases can transition directly to a solid Example: the formation of frost






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






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






36. A measure of the acidity or basicity of a solution - The ____ scale is not an absolute scale; it is relative to a set of standard solutions whose pH is established by international agreement - these measurements are important for medicine - biology -






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






38. The earth's __________ orients the iron needles of navigational compasses






39. Temperature scale -0






40. 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






41. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron






42. The pitch of a sound depends on how fast the particles of a medium vibrate






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






44. A mechanical device that changes the direction or magnitude of a force - The simplest mechanisms that use mechanical advantage to multiply force - Uses a single applied force to do work against a single load force






45. 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






46. 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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47. Involve one substance changing states (not one substance changing into another) - Typically reversible Example: water - Can change from a gas (water vapor) to a liquid (water) to a solid (ice) - but the water molecules do not change






48. The mechanical advantage of a wedge is given by the ______________________ - Although a short wedge with a wide angle may do a job faster - it requires more force than a long wedge with a narrow angle






49. 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






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







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