4. Short Answer Questions a) Discuss the difficulties associated with using grains of corn as the standard of mass b) What problems are likely to arise if measured values of physical quantities are expressed without units? c) Explain ways in which standard measurements would be especially important to Scientists working on a cure for the COVID-19 disease.

Question

4. Short Answer Questions a) Discuss the difficulties associated with using grains of corn as the standard of mass b) What problems are likely to arise if measured values of physical quantities are expressed without units? c) Explain ways in which standard measurements would be especially important to Scientists working on a cure for the COVID-19 disease.

Answer 1

a) The difficulties associated with using grains of corn as the standard of mass include:- Inconsistency: The weight of grains of corn can vary depending on factors such as moisture content, size, and density, leading to inconsistent measurements.- Lack of precision: It is challenging to accurately measure the mass of individual grains of corn, resulting in imprecise measurements.- Limited scalability: Using grains of corn as the standard of mass is not practical for measuring large quantities or masses, as it would be time-consuming and inefficient.b) Problems likely to arise if measured values of physical quantities are expressed without units include:- Misinterpretation: Without units, it is difficult to determine the scale or magnitude of the measured value, leading to potential misinterpretation of the results.- Lack of context: Units provide context for the measurement, indicating the specific quantity being measured (e.g., length, mass, temperature). Without units, it becomes unclear what the measurement represents.- Difficulty in comparisons: Comparing measurements without units becomes challenging, as it is unclear whether the values are in the same or different scales.c) Standard measurements are especially important to scientists working on a cure for the COVID-19 disease because:- Accuracy and precision: Standard measurements ensure that data is accurate and precise, which is crucial for understanding the disease, testing treatments, and monitoring patient outcomes.- Reproducibility: Standardized measurements allow for the replication of experiments and studies, enabling researchers to verify results and build upon existing knowledge.- Communication and collaboration: Standard measurements facilitate effective communication and collaboration among scientists globally, as everyone uses the same reference points and units.- Regulatory compliance: Standard measurements are essential for meeting regulatory requirements and ensuring the safety and efficacy of any potential treatments or vaccines developed for COVID-19.

Question

Solution

Resposta