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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 top of a wave's 'hill'






2. The pitch of a sound depends on how fast the particles of a medium vibrate






3. 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






4. 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






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






6. 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)






7. 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






8. 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






9. Relies on the the first law - The acceleration of an object is proportional to the force applied (the more force - the more acceleration)


10. 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






11. Solids - liquids - and gases






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






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






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






15. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)






16. 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






17. 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






18. 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)






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






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






21. Move around the nucleus in electron clouds - have a negative charge - and they are attracted to the positively charged protons in the nucleus - This attraction keeps the electrons in orbit around the nucleus






22. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)






23. Refers to various properties of matter in the solid phase that give it a high resistance to its shape changing when force is applied






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






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






26. A difference between two temperatures or an uncertainty






27. Major greenhouse gases






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


29. 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






30. 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






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






32. Some of the light is reflected - the angle of reflection being equal to the...






33. 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






34. 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






35. 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






36. 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






37. The number of waves produced in a given time






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






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


40. 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






41. When foreign substances are dissolved in water it creates a solution - Solutions with a pH of less than 7.0 are said to be acidic - and solutions with a pH greater than 7.0 are said to be basic or alkaline






42. 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






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






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






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






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






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






48. 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






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