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






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






3. 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






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

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5. 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






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






7. 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






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






9. 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






10. 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






11. 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






12. 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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13. 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






14. 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






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. 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. 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






18. 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






19. Obtained by two different means - fission and fusion






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






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






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






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






25. 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)






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






27. The beginning of scientific wisdom - The physicist's first reaction to a new idea is to ask: Can it be measured? Can I describe it with numbers?






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






29. Displayed by permanent magnets and around electric currents






30. Opposite process of nuclear fission - Yields energy when very light nuclei unite to a heavier nucleus - Stars (including the sun) derive their energy from nuclear fusion






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






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






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






34. 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






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






36. Formed by the chemical combination of two or more elements in a fixed ratio Example: water






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






38. 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






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






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






41. 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






42. Elements are assigned atomic numbers equal to the __________ in the nucleus of their atoms - Each element has a different number of protons






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






44. 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






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






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






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






48. 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






49. 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






50. 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