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Across 4. a quantity represented not just by its magnitude, but also its direction. 5. study of light and vision. 8. topic beyond 20th century. 11. it is the force(F) applied by one object to another object within a given time interval. 13. is a quantitative description of a fundamental property or physical phenomena. 16. is equivalent to plus or minusone-half (1/2) of the smallest division on measuring instrument. 18. traditional topics on physics. 19. measure of one's motion, equivalent to the pruduct of one's mass and velocity. 23. define as the rate of change of velocity. 24. study of sounds. 27. s a scalar quantity, which refers to "how much grund an object has covered"? during its motion. 29. it is the rate of doing work. 30. it is the ability to do work.

Down 1. it is apush or a pull exerted on an object. 2. is opposite of percentage of uncerainty. 3. the effect of a force at a certain distance from the point of ratationor pivot pint. 6. a force that is present in ropes, strings, cables and other similar materials. 7. a quantity represented only by its magnitude. 9. is a vector quantity, which refers to "how far out of place an object is"? it is the objects overall chage in position. 10. is the SI unit for time. 12. is equivalent to the smllest division found in the measuring instrument. 14. study of day-to-day phenomena. 15. a process to determine the accuracy, uncertainty and pricision of a measuring instrument. 17. measures how much of the work you put in gets to the load. 20. the SI base unit. 21. a force that works against the directionof a given force, and thus impedes all motion. 22. define as a continuous change of position with respect to a certain reference point. 25. is a scalar quantity, which refers to "how fast an objectis movin"?. 26. the SI unit of temperature. 28. is the scalar product of the force acting on an object and the displacement caused by that force.