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






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






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






4. 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






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






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






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






8. A grooved wheel with a rope or other item wrapped around it - used to change the direction of an applied force - change the amount of force - transmit rotational motion - or realize a mechanical advantage in either a linear or a rotational system of






9. When the electrons flow in one direction - the flowing electricity is referred to as current - An electric current is simply a flow of electrons through a wire






10. 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






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






12. A source of electric light that works by incandescence - An electric current passes through a thin filament - heating it until it produces light - The enclosing glass bulb prevents the oxygen in the air from reaching the hot filament - which otherwis






13. Temperature scale -0






14. 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






15. Heat tends to move from a high - temperature region to a low- temperature region - This heat transfer may occur by the mechanisms of conduction - radiation - and convection






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






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






18. In each element's square - the ________ is in the middle - the atomic weight is usually directly below the symbol - the atomic number is usually shown at the top of the square






19. 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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20. 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)






21. 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






22. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes






23. 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 -






24. A flat surface whose endpoints are at different heights - resulting in a slope - By moving an object up an ___________ rather than completely vertically - the amount of force required is reduced - at the expense of increasing the distance the object






25. Solids - liquids - and gases






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






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. The shortest wavelength; red is the longest






29. Show the number of molecules or formula units of the reactants and products - Example: nitrous oxide is a colorless - odorless gas that causes mild hysteria when inhaled - hence the name laughing gas; it is prepared by heating ammonium nitrate crysta






30. 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






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






32. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions






33. Hard matter is ______ with soft matter






34. 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)






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






36. Height of the bounce of an object dropped o the material - related to elasticity






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






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

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39. 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






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






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






42. 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






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






44. 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)






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






46. Scratch hardness - indentation hardness - and rebound hardness






47. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel






48. 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






49. A difference between two temperatures or an uncertainty






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

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