PRE-LAB ACTIVITY iagram represents a contour map of a hilly island

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PRE-LAB ACTIVITY iagram represents a contour map of a hilly island. Copy it into your lab notebook. The outer contour of the figure is a lines in th contours. North is up 1. Each contour line as you go inland t sea level. All points on any one particular contour line are at same elevation (vertical distance above sea-level). The distance between any two contour e diagram represents the horizontal distance between points on the two different represents ground that is at a constant elevation 5 meters higher than the previous contour At what points on the map are there steep cliffs? Show at least three a) places b) There are two high areas, label the eastern one A and the western one B How high are they? Mark a straight-line path to climb from sea level to the high point B c) with the most gentle slope. You are interested in how much work it takes to lift your body mass from sea level to the B peak. If you follow the path you chose in part C will you minimize the amount of work to climb to the top, or will it make no d) difference? The same diagram could also represent the contours of the electrical potential of two positively charged objects with irregular shapes (for example charges stored on a rubber sheet). Assume that the outer part of the figure is at zero potential. Each contour line going towards the center represents an equipotential surface with a potential 5 V greater than the previous contour. 2. Where is the electric field particularly strong? Show at least three places. Explain your a) b) There are two areas of high potential on the diagram. What is the value (in Volts) of c) reasoning with reference to Q1(a). each of these high potential peaks? What path would require you to use the least amount of force to push a test charge from zero potential to the point of highest potential of one of the charged objects? (Choose the same one you labeled B in 1b) above.) Explain your reasoning. Would you actually do less work to move the test charge from 0 V to the voltage at B by using the path selected in 2c), or would the actual path make no difference? d) 3 ELECTRIC POTENTIALS&FIELDS