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Understanding Force and Real Science Through Experiments and Hypotheses

This chapter delves into the concepts of force in physical science, emphasizing the gathering of new information and the practical applications of scientific findings in technology, such as glasses and contact lenses. It explores the structure of scientific experiments, defining essential terms like hypothesis, control, variable (independent and dependent), and the difference between observations and inferences. Readers will gain a foundational understanding of how to formulate testable predictions and the components necessary for conducting meaningful scientific experiments.

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Understanding Force and Real Science Through Experiments and Hypotheses

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  1. Chapter 1 Notes Physical Science Force

  2. Real (or Pure) Gathering of new information or the discovery of a new fact Examples How the eye works Applied (or Technology) Practical use of scientific information Examples Glasses and contacts Two Types of Science

  3. Experiments • Experiment • Defn: an organized procedure for testing a hypothesis • Hypothesis • An educated guess • Guess with background knowledge • A testable prediction

  4. Hypothesis • If I change __________________, then ________________ will change, because of ______________________. • Ex: If I go out to the bus 20 minutes later at 7:30, then I will not catch the bus, because the bus comes at 7:15.

  5. Parts of an Experiment • Control • Defn: a standard for comparison • Constant • Defn: a factor that doesn’t vary in an experiment • Variable • Defn: something that can change in an experiment

  6. Two Types of Variables • Independent Variable • Defn: the factor changed or adjusted by the experimenter • Dependent Variable • Defn: the factor that changes due to the change in the independent variable

  7. More Hypothesis • If I change , then . will change, because of (independent variable) (dependent variable) (background information, educated portion)

  8. Inferences and Observations • Observation • Something that you can gather using your 5 senses (sight, touch, hearing, smell, taste) • Inferences • Something you can guess based on observations

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