Check your lab records for completeness using the rubric below:

Check your lab records for completeness using the rubric below:

The purpose of this lab was to develop experimental mathematical models to describe the behavior (acceleration) of a system in a reallab setting. Answer the questions below in yourlab recordsto conclude today’s lab.

a.Summarize findings into a general conclusion. Your group developed two mathematical models from experimental data. Each describes the behavior of a system’s motion (acceleration) in terms of another variable (IV). Write a sentence or two as a general summary of what your group learned in terms of what factors impact, or do not impact, the acceleration of a system. For those factors that have impact, describe howeach affects the acceleration.

b.Cite the evidence that supports your claim.

The data collected during lab, as well as known scientific knowledge or theories, can be used as evidence to justify your claim. The questions below serve as a guide for evaluating all evidence that supports your claim.

i.How confident are you in the numbers obtained for each measurement? Be sure to comment on the ranges of uncertainty (variation) for these measurements.

ii.Explain in a few sentences howeachmathematical model was determined, what the model is, and how it led to your claim.

iii.How confident are you in the mathematical model provided by Excel? That is, comment on how well the trendline passes through the set of plotted data points. Cite the R²value as well and discuss what this value indicates to you.

iv.Cite the data and claims from at least two other groups. You may include a photo of their data and claims from their whiteboards. Discuss whether their data supports or challenges the findings of your group and how that impacts your level of confidence in your claims.

In the lecture part of your physics course you learned about Newton’s Second Law (F=ma). The questions in this section serve as a guide to compare and contrast both of your experimental models to Newton’s Second Law.

i. Describe how each of your experimental models supports Newton’s Second Law. Also, as part of this discussion, be sure to consider any numerical values in your experimental model and how Newton’s Second Law provides meaning to these numbers.

ii.Describe any differences between your experimental models and Newton’s Second Law. Identify what may account for these differences.

c.Consider other possible factors. Are there any other factors not tested that might impact your response to the research question regarding what affects the acceleration of a system? If so, what are they and how might they be investigated? What new research question could you ask? If not, explain why you believe you have investigated all possible factors.

d.Suggest improvements. If given the opportunity to repeat the investigation, what could be done to improve the collected evidence (data), or strengthen your interpretation of the evidence, which support your general conclusion? You may wish to discuss flaws in your experimental design, how you might employ better controls, address assumptions, and so on.

e.Consider a hypothetical scenario. A physics student claims that Newton’s second law() can be used to predict the net force necessary to obtain a desired acceleration. What relationship, correlational or causal, exists between net force and acceleration if mass is constant? Explain.

Check your lab records for completeness using the rubric below:

A lab report is required for this investigation BUT is not to be written until after Lab 06. This ends the work necessary for Lab 05. Turn in your lab records but be sure to bring your own copy to class during Lab 06 as this data will be needed again.