Physics, Lesson 1

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Across
  1. 3. can be used to describe objects, conditions, events, or changes that might be occurring
  2. 5. symbols are used in an equation, a statement that describes a relationship where the quantities on one side of the equal sign are identical to the quantities on the other side
  3. 7. system developed from earlier Greek and Roman methods of measurement
  4. 10. experiment compares two situations in which all the influencing factors are identical except one
  5. 17. proportion when two variables increase (or decrease) together in the same ratio, they are said to be in direct proportion
  6. 18. is a relationship between two numbers that is obtained when one number is divided by another number
  7. 19. "pseudo" means fals; a deceptive practice that uses the appearance or language of science to convince, confuse, or mislead people into thinking that something has scientific validity when it does not
  8. 21. principle describes a more specific set of relationships than is usually identified in a law
  9. 22. properties cannot be defined in simpler terms other than to describe how it is measured
  10. 23. system was established by the French Academy of Sciences in 1791
  11. 24. proportion other common relationships include one variable increasing in proportion to the square or to the inverse square of a second variable
  12. 27. is a process of comparing a property to a well-defined and agreed-upon referent
  13. 28. is defined as the mass of a particular cylinder made of platinum and iridium, kept by the International Bureau of Weights and Measures in France
  14. 29. defines a metric unit that is commonly used to measure liquid
Down
  1. 1. means the extent of a surface, and each cube has six surfaces, or faces (top, bottom, and four sides)
  2. 2. refers to a specific quantity of an object or event that can have different values
  3. 3. defined as mass per unit volume
  4. 4. that you refer to, or think of, a given property in terms of another, more familiar object
  5. 6. a tentative thought-or experiment-derived explanation
  6. 8. was originally defined as 1/86,400 of a solar day (1/60 x 1/60 x 1/24)
  7. 9. broad working hypothesis that is based on extensive experimental evidence
  8. 11. well-defined and agreed-upon referent is used as a standard called a unit
  9. 12. the symbols actually represent quantities, or measured properties
  10. 13. means how much space something occupies and size being described
  11. 14. qualities or attributes that, taken together, are usually peculiar to an object
  12. 15. constant to make a statement of proportionality into an equation, you need to apply a proportionality constant, which is sometimes given the symbol k
  13. 16. a re-creation of an event or occurrence in a way that enables a scientist to support or disprove a hypothesis
  14. 20. unit makes it possible to communicate and duplicate measurements
  15. 25. constant Numerical constant-A proportionality constant in an equation might be a numerical constant, a constant that is without units
  16. 26. description of a theory or idea that accounts for all known properties
  17. 27. is defined as the distance that light travels in a vacuum during certain time period, 1/299,792,458 second