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Physics study

Physics study guide unit 1

QuestionAnswer
Why is it important to study physics? It is important b/c it (helps us understand how the world around us works and how scientists figure out why things happen).
What factors affect a pendulum's period? The (length of the string) affect the period of the pendulum.
What are the 5 basic steps of scientific method? Questions-Hypothesis-Experiment-Data-Conclusion *rmb: queen henry exerts da conclusion
What makes a hypothesis testable? It is testable if it can be (tested by an experiment and potentially proven wrong).
What is the difference between qualitative and quantitative data? Qualitative data describes qualities using words, while quantitative data uses numbers and measurements. *QUANTitative=QUANTITY=numbers
What is the difference between a theory and a law? A theory explains why something happens, while a law describes what happens based on repeated observations and evidence. *Theory=WHY Law=WHAT
What is scientific method? The scientific method is a step-by-step process scientists use to investigate questions and test ideas. Think: “a process for figuring things out.”
What is an observation? Something you notice using your senses.
What are variables? Something that can change in an experiment.
What is a conclusion? It explains what the experiment showed
What is a scientific attitude? It is being curious, open-minded, and willing to learn from evidence.
What is scientific notation? a shorter way to write very large or very small numbers.
What is a scientific fact? Something that has been repeatedly observed and can be supported by evidence.
What is the difference between a control group and an experimental group? Control group = the group used for comparison; usually does not receive the treatment Experimental group = the group that receives the treatment being tested
What is the difference between an observation and data? Observation = what you notice Data = the information you collect
What is science? The study of the natural world through observations and experiments.
What is physics? Physics is the study of matter, energy, motion, and how they interact.
What is the difference between a scientific hypothesis and a non-scientific hypothesis? A scientific hypothesis is a testable guess based on observations, while a non-scientific hypothesis cannot be tested scientifically.
What are the 3 steps: recording data, analyzing data, and drawing conclusions? RD= writing down the observations/measurements you collect. AD= looking at the data to find patterns or understand what it shows. DC =explaining what the experiment showed and whether your hypothesis was supported.
What is the Cardinal Rule of Science? Scientists must report their results honestly and accurately, even if the results don't support their hypothesis.
What are the basic units? Length → meter (m) Mass → gram (g) Volume → liter (L) or milliliter (mL) Time → second (s)
What are the branches of Science? Physical Sciences → matter, energy, forces, motion (physics, chemistry) Life Sciences → living things (biology) Earth Sciences → Earth, rocks, weather, oceans, space
Why might a placebo be used in an experiment? To have a control group to compare the results to.
What is accuracy and precision? Accuracy=how close a measurement is to the actual value Precision=how close measurements are to each other
Created by: user-1825772
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