A class made models of a graduated cylinder using plastic cups. Describe how your team can test the accuracy of these models for measuring volume.
List the steps in your procedure.
To test the accuracy of models made from plastic cups for measuring volume, here are the steps you can follow:
1. Gather the necessary materials: You will need the models made from plastic cups, a known volume of liquid (preferably water), a graduated cylinder (which is a reliable volume measuring tool), and a measuring device such as a scale.
2. Start by verifying the accuracy of the graduated cylinder: Fill the graduated cylinder with a known volume of water. You can measure this volume using a measuring device, such as a scale, if needed. Make sure to record the exact volume.
3. Pour the water from the graduated cylinder into one of the plastic cup models. Be careful not to spill any water during this process and ensure the cup is completely filled.
4. After pouring the water, observe and record the volume indicated by the plastic cup model. Compare this volume with the known volume that was initially measured with the graduated cylinder.
5. Repeat the process for each plastic cup model, pouring the same known volume of water into each one and recording the indicated volume for each model.
6. Analyze the results: Compare the indicated volumes from the plastic cup models with the known volume measured using the graduated cylinder. Calculate the percentage difference between the indicated and known volumes for each model.
7. Determine the accuracy of each plastic cup model: If the indicated volume is very close to the known volume, the model is considered to be accurate. However, if there is a significant percentage difference, it indicates that the model is not precise in measuring volume.
8. Draw conclusions and make adjustments if necessary: Based on the results obtained, you can determine which models are more accurate and identify any possible design flaws or improvements.
By following these steps, your team can effectively test the accuracy of the plastic cup models for measuring volume.