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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. Scratch hardness - indentation hardness - and rebound hardness






2. A form of energy that can be used to produce sound - light - heat - and power - it exists where the number of negative electrons does not precisely equal the number of positive protons - Electrons are held in the atom by an electrical force and have






3. For every action (applied force) - there is an equal and opposite reaction

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4. Major greenhouse gases






5. 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






6. 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






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






8. 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






9. Solids - liquids - and gases






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






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






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






13. 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)






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






15. 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






16. A gas - discharge lamp that uses electricity to excite mercury vapor - The excited mercury atoms produce short - wave ultraviolet light that then causes a phosphor to fluoresce - producing visible light






17. Anything that has mass and occupies space - Everything you see and touch is composed of matter






18. 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






19. 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 -






20. 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






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






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






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. 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






25. 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






26. The number of waves produced in a given time






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. 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






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






30. 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






31. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism






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






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






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






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






36. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen






37. A compressed gas pushes out __________ in all directions






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






39. 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






40. 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






41. 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






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






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






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






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






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






48. Glass has a higher ___________ than air and the different frequencies of light have different wavelengths (dispersion) - causing them to be refracted at different angles - so that you can see them - The different frequencies correspond to different c






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






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