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






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


3. 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






4. 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






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






6. Are inclined planes - Can convert a rotational force (torque) to a linear force - and vice versa - The ratio of threading determines the mechanical advantage of the machine - More threading increases the mechanical advantage






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






8. 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






9. 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)






10. 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






11. 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






12. 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






13. 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






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






15. 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






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






18. Temperature scale -0






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






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






21. A compressed gas pushes out __________ in all directions






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






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






24. The top of a wave's 'hill'






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






26. The number of waves produced in a given time






27. 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






28. Hard matter is ______ with soft matter






29. Solids - liquids - and gases






30. 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)






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






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






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






34. 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






35. 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






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






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






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






39. Displayed by permanent magnets and around electric currents






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






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






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






43. These are the factors that are kept exactly the same in an experiment. In an experiment on plant growth - the variables could include amount of sunlight - type of soil - amount of water - and type of plant. Only one factor at a time is changed - whil






44. Energy can be neither created nor destroy






45. 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






46. Transition of heat through a medium - From a region of higher temperature to a region of lower temperature - Heat energy is transferred from one material to another by direct contact - Metals are good conductors of heat






47. 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






48. 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






49. 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






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