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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. 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)






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






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






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






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






6. Displayed by permanent magnets and around electric currents






7. Form a question (state the problem) - A scientific question is one that can be answered on the basis of evidence and that can be measured - The question often asks - 'What effect will something have






8. 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






9. 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






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






11. The terms gravitation and gravity are mostly interchangeable in everyday use - refers specifically to the gravitational force exerted by the earth on objects in its vicinity






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






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






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






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






16. 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






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






18. 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






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






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






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






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






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






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






25. 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






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






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






28. 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






29. 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






30. Unlike incandescent lamps - fluorescent lamps always require a ______ to regulate the flow of power through the lamp






31. A compressed gas pushes out __________ in all directions






32. Account for 17 elements in the periodic table - Lack the properties of metals but are very common - Include oxygen - nitrogen - and carbon - 7 metalloid elements - and 7 gases - Poor conductors of electricity






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






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






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






37. 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






38. The branches of natural sciences that study the nature and properties of energy and non - living matter






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






40. The number of waves produced in a given time






41. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity






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

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44. 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






45. 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






46. 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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47. 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






48. 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)






49. A source of electric light that works by incandescence - An electric current passes through a thin filament - heating it until it produces light - The enclosing glass bulb prevents the oxygen in the air from reaching the hot filament - which otherwis






50. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object