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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. 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






2. Major greenhouse gases






3. Obtained by two different means - fission and fusion






4. The shortest wavelength; red is the longest






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






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






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






8. Solids - liquids - and gases






9. 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






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






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






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






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






14. 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






15. 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






16. 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






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






18. The number of protons of that element - No two elements have the same atomic number - Elements in the periodic table are arranged in order of increasing atomic number






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






20. 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






21. 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






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






23. Results when electrical charges buildup or increase on the surface of a material - here - there is no current flowing as would be found in electrical outlets - When certain materials are rubbed together - electrons can move from one object to the oth






24. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density






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






26. 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






27. After a rainstorm - the air is full of tiny drops of water - Each drop acts as a prism - splitting the light into the colors of the spectrum






28. 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)






29. 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






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






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






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






33. 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






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






35. 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






36. 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






37. Temperature scale -0






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






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. Scratch hardness - indentation hardness - and rebound hardness






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






42. Hard matter is ______ with soft matter






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






44. 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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45. 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






46. 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






47. The number of waves produced in a given time






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






49. A difference between two temperatures or an uncertainty






50. Heat tends to move from a high - temperature region to a low- temperature region - This heat transfer may occur by the mechanisms of conduction - radiation - and convection







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