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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. 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






2. 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






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






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






5. 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)






6. Explains why objects appear bent as light passes from one transparent object into another - Light travels at different speeds through different objects (faster through air than through water or glass) - Responsible for rainbows and for the splitting






7. Kinetic energy: energy possessed by a moving object - An object in an unstable position has potential energy - for the position could be converted into movement Example: a baseball thrown vertically upward






8. Temperature scale -0






9. The liquid state is __________ between the solid and gaseous states with regard to molecular motion and attractive forces between molecules Examples: water - oil - milk - honey






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






11. 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






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






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






14. Energy taken from finite resources that will eventually dwindle - becoming too expensive or too environmentally damaging to retrieve - Fossil fuels include coal - petroleum - and natural gas - Fossil fuels are limited and nonrenewable and contribute






15. This is the variable that changes as a result of the manipulated variable. The dependent variable is observed and measured. Examples include determining how long various saltwater solutions take to freeze - and determining the number of cycles a pend






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






17. 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






18. 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






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






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






21. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)






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






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






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






25. 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






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






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






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






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






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






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






32. Arranges all of the known elements from left to right and top to bottom in order of increasing atomic number - and they generally coincide with their increasing atomic mass






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

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






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






36. Displayed by permanent magnets and around electric currents






37. 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






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






39. Obtained by two different means - fission and fusion






40. The shortest wavelength; red is the longest






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






42. 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






43. 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






44. 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






45. 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






46. Can multiply force or distance depending on the location of the fulcrum End: Output force Middle: Fulcrum Other end: Input force Examples: seesaws - scissors - pliers






47. Transferring of heat by the circulating motion of particles (in liquid or gas) - Occurs when hot air is less dense than cool air and therefore rises - When the heat moves in a circular pattern - convection currents are formed - Heat can be transferre






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






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






50. 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