Physics Chapter 1

Introduction, Measurement and Estimating

Word Bank
Accuracy, Atomic Mass Unit, Base Quantity, CGS, Conversion Factor, Derived Quantity, Dimension, Dimensional analysis, Estimated uncertainty, Kilogram, Law, Length, MKS system, Mass, Meter, Model, Observation, Operational definition, Order of magnitude estimate, Percent error, Percent uncertainty, Physics, Precision, Scientific notation, Second, Significant figures, Standard, Testing, Theory, Time, Uncertainty, Unit

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Across

6. The design and carrying out of experiments.

7. A standard defined in terms of a combination of SI based unit

11. A synthesis of a large body of information that is well tested and verified by hypothesis.

13. A set of experiments designed to prove or disprove a theory.

14. An agreed upon reproducible value that is exactly defined.

17. A shorthand method to write very large or very small numbers with the acceptable number of significant figures.

20. An agreed upon symbol that represent a particular standard.

22. Any quantity, whether base or derived, with a specified rule or procedure.

24. The measurement or extent of something from end to end

27. A standard defined in terms of it SI based unit

28. The indefinite continued progress of existence and events in the past, present, and future regarded as a whole.

29. The SI base unit for length.

30. Dimensions use in working out relationships base on acceptable facts.

31. The absolute value of the difference between the accepted value minus the experimental value divided by the accepted value multiplied by 100.

32. The SI base unit for time

Down

1. The acceptable variance from an accepted value.

2. The amount of matter in an object

3. a rough estimate made by rounding off all number to one significant figure and its power of ten

4. The ratio of the uncertainty to measure a value, multiplied by 100.

5. A concise but general statements found to be experimentally valid of a wide range of observed phenomena.

8. Centimeters, Grams,and Seconds

9. An agreed upon quantity of equal value.

10. The types of units or base quantities that makes it up

12. The SI base unit for mass; the only base unit with a prefix

15. The amount of matter in 1/12 of a carbon atom

16. The number of reliably known digits in a number.

18. How close a measurement is to the true value.

19. A kind of analogy or mental image of the phenomena in terms of something we are already familiar with.

21. An acceptable error in a measurement due to human or mechanical limitations.

23. Meters, Kilograms and Seconds.

25. The most basics of all living and non-living sciences.

26. The repeatability of the measurement using a given instrument.

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