Table 1. A B C D E F G Mass Math Energy Angle Mass Determined Long Axis | Short Axis Illuminance Determined Area (g) Area (my) (L) (S) Area (my) (Watts/m-) (lux) 90 0. 12 0.045m 0. 045 m 80 O. 1 0. 046 m 10. 043 m 70 -0.15 0.05 m 1:04421 60" 0. 15 0. 048m D .04 4 m 50 0. 17 0. 055m | 0.047 m 40 0.14 0.06m 0.047 m 30" 0. 19 0.07 m 10.049 m 20 0. 25 0. 082 m |0. 049 m 10 0.35 10.119m 10.04Em 9. Graph the Angle (x-axis) vs. the Energy / Area (y-axis) including a title, labels, and legend.Evaluation I. Mass of the 10 cm x 10 cm piece of paper = _Q.65 g. 2. The 10 cm x 10 cm paper is equal to :how many m of paper? 0 .01 Note: 1 m' = (100 em) =10,000 cm. 3. Determine the mass per m for the paper =_ 65 g / m 2 4. Find the Area of each ellipse by dividing the mass by the answer in #3 above. Do two of the conversions below making sure to show units to verify that this will give an answer in m . Put your answers in Column B of Table: 1. 90" 80 5. Mathematically determine the area using the formula Area = (It X L X S)/4. Put your answers in Table 1, column E. 6. Compare the Math determined area and Mass determined area. Which is more accurate? Think about the number of significant digits from your measurements. 7. Make an assumption that the light emitted from the heat lamp has a power of 100 Watts at the surface of the sand, soil, or water. Find the Energy per Area by dividing the 100 Watts by the area of each ellipse. Put your answers in Table 1, column F.Procedure 1. Cut out and find the mass of a.10 cm x 10 cm piece of paper. This mass will be used to calculate the areas of the "ellipses" of light. Put this answer on line #1 under Evaluation. 2. Tape a straw to a flashlight such that 8 cm extends beyond the end of the flashlight. 3. Place another sheet of paper on the lab bench. 4. Turn on the flashlight and then shut off all the lights in the room. 5. Position the flashlight so that the straw touches the upper right hand corner of the paper at a 90" angle to the paper. Use a protractor to measure the angle. 6. Use a pencil to trace the circumference of the brightest portion of the circle or 90 ellipse. Label this ellipse as 90. 70: 80 7. Repeat at eight more locations on the paper using the angles listed in Table 1. Properly title the table. 8. . Measure the long axis (L) and average short axis (S) of each ellipse and convert data to meters. .Put the data in column C and D. respectively, in Table 1. . 9. Cut out each ellipse and determine the mass of each. Put answer in column A of Table 1