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Across 2. measure of one's motion, equivalent to the pruduct of one's mass and velocity. 3. the effect of a force at a certain distance from the point of ratationor pivot pint. 5. the SI unit of temperature. 6. topic beyond 20th century. 8. it is the force(F) applied by one object to another object within a given time interval. 10. study of light and vision. 15. a force that works against the directionof a given force, and thus impedes all motion. 16. a process to determine the accuracy, uncertainty and pricision of a measuring instrument. 20. it is the rate of doing work. 22. traditional topics on physics. 23. study of sounds. 24. is a quantitative description of a fundamental property or physical phenomena. 26. define as the rate of change of velocity. 27. a quantity represented only by its magnitude. 28. is the SI unit for time.

Down 1. the SI base unit. 3. a force that is present in ropes, strings, cables and other similar materials. 4. is opposite of percentage of uncerainty. 7. a quantity represented not just by its magnitude, but also its direction. 9. measures how much of the work you put in gets to the load. 11. study of day-to-day phenomena. 12. it is apush or a pull exerted on an object. 13. is equivalent to the smllest division found in the measuring instrument. 14. is a vector quantity, which refers to "how far out of place an object is"? it is the objects overall chage in position. 17. is a scalar quantity, which refers to "how fast an objectis movin"?. 18. s a scalar quantity, which refers to "how much grund an object has covered"? during its motion. 19. is equivalent to plus or minusone-half (1/2) of the smallest division on measuring instrument. 21. is the scalar product of the force acting on an object and the displacement caused by that force. 24. define as a continuous change of position with respect to a certain reference point. 25. it is the ability to do work.