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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 number of waves produced in a given time






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






3. 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






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






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






6. 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






7. 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)






8. 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






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






10. Hard matter is ______ with soft matter






11. 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






12. A difference between two temperatures or an uncertainty






13. A rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object - Examples: wheelbarrow (the wheel works as the fulcrum) - scissors (the fulcrum is where the blades cross)






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






15. 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






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

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17. 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






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






19. 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






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






21. 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






22. The mechanical advantage of a wedge is given by the ______________________ - Although a short wedge with a wide angle may do a job faster - it requires more force than a long wedge with a narrow angle






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






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






25. 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






26. 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






27. A change of one substance into a different substance - Occurs whenever compounds are formed or decomposed - During this reaction - there is a rearrangement of atoms that makes or breaks chemical bonds - This change is usually not reversible - unlike






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






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






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






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






32. A compound composed of one atom of sodium and one atom of chlorine (NaCl - sodium chloride)






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






34. 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






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






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






37. 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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38. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle






39. The shortest wavelength; red is the longest






40. 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






41. Made by combining two or more different materials without a chemical reaction occurring (the objects do not bond together) - They are the product of a mechanical blending or mixing of chemical substances - Either homogeneous or heterogeneous






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






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






44. If the pressure increases - the volume decreases; the reverse is true as well

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






46. 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






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






48. 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)






49. 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






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