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A B Draw an ellipse on the grid above. Have the piece of paper on a piece of cardboard backing. Put thumbtacks or pushpins through the foci of your ellipse (the two black dots). Tie a loop of string goes around the thumbtacks and, when stretched tight, does not go beyond the right and left- hand-sides of the grid. Keeping the string taut around the thumbtacks and making sure it does not slip, draw the ellipse with a pencil,. that 1. Use a ruler to measure the lengths of the axes on your ellipse in cm or mm. Write down the lengths (& units): a. minor axis: b. semiminor axis: c. major axis: d. semi-major axis:_ (Review what the previous page says about the importance of the semi-major axis.) 3 What is the

A B Draw an ellipse on the grid above. Have the piece of paper on a piece of cardboard backing. Put thumbtacks or pushpins through the foci of your ellipse (the two black dots). Tie a loop of string goes around the thumbtacks and, when stretched tight, does not go beyond the right and left- hand-sides of the grid. Keeping the string taut around the thumbtacks and making sure it does not slip, draw the ellipse with a pencil,. that 1. Use a ruler to measure the lengths of the axes on your ellipse in cm or mm. Write down the lengths (& units): a. minor axis: b. semiminor axis: c. major axis: d. semi-major axis:_ (Review what the previous page says about the importance of the semi-major axis.) 3 What is the

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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A B Draw an ellipse on the grid above. Have the piece of paper on a piece of cardboard backing. Put thumbtacks or pushpins through the foci of your ellipse (the two black dots). Tie a loop of string that goes around the thumbtacks and, when stretched tight, does not go beyond the right and left- hand-sides of the grid. Keeping the string taut around the thumbtacks and making sure it does not slip, draw the ellipse with a pencil,. 1. Use a ruler to measure the lengths of the axes on your ellipse in cm or mm. Write down the lengths (& units): a. minor axis: b. semiminor axis: c. major axis: d. semi-major axis: (Review what the previous page says about the importance of the semi-major axis.) 3. What is the average distance from the ellipse to one of its foci? Draw a straight line from the Sun (left focus, black dot) towards the letter A, stopping your line from the Sun where it hits the ellipse. Do the same with a line from the Sun towards the letter B (do not draw the line past the ellipse). The area in-between your two lines is a "swept area." Lightly shade in your swept area (using a pencil, not a pen.) 4. What is the area of your swept area, in terms of grid squares? grid squares Draw another line from the Sun (left-hand focus dot) to the aphelion, the point on the ellipse farthest from the Sun, on the right. Make that the beginning of a second swept area equal to the first swept area.
Transcribed Image Text:A B Draw an ellipse on the grid above. Have the piece of paper on a piece of cardboard backing. Put thumbtacks or pushpins through the foci of your ellipse (the two black dots). Tie a loop of string that goes around the thumbtacks and, when stretched tight, does not go beyond the right and left- hand-sides of the grid. Keeping the string taut around the thumbtacks and making sure it does not slip, draw the ellipse with a pencil,. 1. Use a ruler to measure the lengths of the axes on your ellipse in cm or mm. Write down the lengths (& units): a. minor axis: b. semiminor axis: c. major axis: d. semi-major axis: (Review what the previous page says about the importance of the semi-major axis.) 3. What is the average distance from the ellipse to one of its foci? Draw a straight line from the Sun (left focus, black dot) towards the letter A, stopping your line from the Sun where it hits the ellipse. Do the same with a line from the Sun towards the letter B (do not draw the line past the ellipse). The area in-between your two lines is a "swept area." Lightly shade in your swept area (using a pencil, not a pen.) 4. What is the area of your swept area, in terms of grid squares? grid squares Draw another line from the Sun (left-hand focus dot) to the aphelion, the point on the ellipse farthest from the Sun, on the right. Make that the beginning of a second swept area equal to the first swept area.
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