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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. 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






2. 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)






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






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






5. 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






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






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






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

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9. 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






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






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






12. Atoms are made up of several tiny parts - At the center of an atom is a core called the __________ - which is made up of particles called protons and neutrons






13. The path or circuit an electric current flows - Electricity requires a complete path for the electrons to flow - If the path is broken and there are not alternative paths for the electrons to follow - the electrons will not move - make it possible fo






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






15. 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






16. 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






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






18. 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)






19. 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






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






21. Major greenhouse gases






22. The law of inertia - Without outside forces (such as gravity or friction) - an object at rest will remain at rest - while an object in motion will never stop or deviate from its course

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






24. Rates minerals and puts them on a scale from 1 to 10 (1 is the softest and 10 is the hardest) determined by the ability of a harder mineral to scratch a softer mineral - Talc is at 1 and diamond is at 10

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25. 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






26. Obtained by two different means - fission and fusion






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






28. 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






29. Symbol: He Protons: 2 Neutrons: 2 Mass: 4






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






31. The shortest wavelength; red is the longest






32. The sum of the protons and neutrons gives an ______________ for the element






33. 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






34. 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






35. 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






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






37. Mechanical advantage of an inclined plane is the ______________ it spans - The inclined plane allows the same work to be done with a smaller force exerted over a greater distance Example: ramp






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






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






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






41. A compressed gas pushes out __________ in all directions






42. Displayed by permanent magnets and around electric currents






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






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






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






47. 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






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






49. 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






50. 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