Ellipse Lab Concepts and Measurements

The video tutorial guides students through an ellipse lab, starting with the setup of materials and drawing the first ellipse. It explains how to measure the distance between the foci and the major axis, and calculate the eccentricity. The process is repeated for three more ellipses, each time moving the foci further apart, and observing changes in eccentricity. The tutorial emphasizes accurate measurement and calculation, and encourages students to note the effects of foci distance on ellipse shape.

What materials are required to start the ellipse lab?

• A piece of string, a plain white paper, and thumb tacks

• A piece of string, a ruler, and a calculator

• A piece of string, a sharpie, and a ruler

• A piece of string, a loop, and a pencil

How far apart should the two dots be drawn for the first ellipse?

• 3 centimeters

• 1.5 centimeters

• 7 centimeters

• 5 centimeters

What is the eccentricity of the first ellipse?

• 0.250

• 0.200

• 0.300

• 0.153

What is the distance between the foci for the second ellipse?

• 3 centimeters

• 5 centimeters

• 7 centimeters

• 9 centimeters

What is the length of the major axis for the second ellipse?

• 15.5 centimeters

• 17.8 centimeters

• 19.6 centimeters

• 13.8 centimeters

How does the eccentricity change as the foci move further apart?

• It becomes zero

• It remains the same

• It decreases

• It increases

What is the distance between the foci for the third ellipse?

• 3 centimeters

• 9 centimeters

• 5 centimeters

• 7 centimeters

What is the length of the major axis for the third ellipse?

• 13.8 centimeters

• 15.5 centimeters

• 17.8 centimeters

• 19.6 centimeters

What is the distance between the foci for the fourth ellipse?

• 5 centimeters

• 7 centimeters

• 3 centimeters

• 9 centimeters

What is the length of the major axis for the fourth ellipse?

• 19.6 centimeters

• 17.8 centimeters

• 13.8 centimeters

• 15.5 centimeters