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When using science to investigate physical phenomena, which characteristic of the event must exist

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Final answer:

A physical event must be able to be perceived and objectively measured for scientific investigation, which uses the scientific law and a structured plan based on evidence and logic to test hypotheses.

Step-by-step explanation:

When using science to investigate physical phenomena, a characteristic that must exist for the event under investigation is that it can be perceived and objectively measured by human beings. This measurement is fundamental in the scientific investigation, which engages a structured plan for asking questions and testing possible answers using evidence and logic. This process includes the formulation of a hypothesis, creating a controlled experiment, observing the results, and forming a conclusion.

The scientific law comes into play as a statement describing what always happens under certain conditions in nature, which has been established through repeated experimental evidence. Furthermore, testability is crucial for scientific explanation; the phenomenon must be testable through experimental investigation that can support or refute a theoretical explanation. Without testability, claims—such as those attributing a natural event to supernatural causes—lack the objective evidence required by scientific methodologies.

User Tadhg
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I think you forgot to give the options along with the question. I am answering the question based on my research and knowledge. "Observable" is the one characteristic of event that must exist when using science to investigate physical phenomena. I hope that this is the answer that has come to your help.
User StarlitSkies
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