Questions:

1. Fritz is interested in determining the difference in how much one weight stretches the spring compared to another weight. He first attaches a 1-pound weight and takes the measurement and then does the same with a 4-pound weight. What is the difference in the amount the spring is stretched when attaching the difference weights?
   
   Answer
   
   
2. Rather than always using the interactive application, Fritz wants to be able to use a formula to determine the amount the spring will stretch when different weights are attached. Attach several different weights to see the amount of stretch. Then write the linear equation that represents this function.
   
   Answer
   
   
3. After Fritz has determined the linear equation to find the amount of stretch, he attaches 2 weights at the same time. Though he does not know the weight of each, together they weigh 4 pounds. When one weight is removed, the stretch of the spring with the remaining weight attached is 0.6 inches. How heavy is each of the weights?
   
   Answer
   
   
4. Using the linear equation, Fritz selects an unmarked weight between 1 and 6 pounds and attaches it to the spring. If the spring is stretched 3 inches, how heavy is the weight?
   
   Answer

Go To: Instructions