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






2. 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






3. 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






4. The shortest wavelength; red is the longest






5. Collect Data (results) - Analyze the data to look for patterns or trends - Record measurements and observations during the experiment - Present data in a graph - table - or another form






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






7. 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






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






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






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






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






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






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






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

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15. Obtained by two different means - fission and fusion






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






17. 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






18. Hard matter is ______ with soft matter






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






20. Energy can be neither created nor destroy






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






22. 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






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

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24. 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






25. 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






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






27. A difference between two temperatures or an uncertainty






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






29. 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






30. 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






31. 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






32. 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






33. Displayed by permanent magnets and around electric currents






34. 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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35. 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






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






37. Form a question (state the problem) - A scientific question is one that can be answered on the basis of evidence and that can be measured - The question often asks - 'What effect will something have






38. 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






39. 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






40. 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






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






42. 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






43. 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






44. 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






45. 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






46. 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






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






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






49. 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






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