Physical Science

1. Physical Science Mr. Bunt Room R-201

2. Classroom Guidelines • Use Common Sense at all times • Do not give me any more gray hairs • Golden Rule Other than that, you’re expected to follow the school handbook guidelines and are subject to consequences that match the offense

3. Grading • Homework Policy • Content will be divided up into units with a unit test • Labs will be conducted at least once per unit

4. Participation Grade • Start with 100 points every quarter (9 wks) • Points subtracted for being out of class • Unexcused absence - 10 points • Tardy - 6 points • Restroom use - 4 points • Excused absence - 2 points

5. Sample of a unit grade • H-work and Journals • Lab • Quizzes • Unit Test Total Points 100 points 30 points 20 points 50 points 200 points

6. Can you pass this class? • Even if you completely fail the test with a zero you can still have a 75% on the unit • The Semester final is worth 20% of your semester grade. Each quarter is worth 40% of your semester grade. • The answer is most likely YES

7. Test Questions (yes these will be on the final) • What is the goal of science? • To gain knowledge about the world • Define “intelligence” • Intelligence is the ability to learn from the world • What is the absence of intelligence? • Stupidity, which means the inability to learn from one’s world or situation

8. What’s this class about? • Basically a two part course • Fall Semester: Chemistry • Spring Semester: Physics • Basics of “Real” Science

9. Fall Semester: Chemistry • Scientific Method & Metric System • Properties of Matter • Atoms & Molecules • Conversions • Chemical Equations • Chemical Reactions

10. Spring Semester: Physics • Measurement and Motion • Newton’s Laws • Work and Energy • Simple Machines • Electricity and Magnetism • Waves

11. What is “Real” Science? This course will be difficult because it will challenge your reading, writing, and math skills. It is one reason why it traditionally a more challenging class. Real science uses the principles of logic and reasoning to gain knowledge about the world around us.

12. Survive and Thrive The “Bunt Brain”

14. The Scientific Method and the Metric System Unit 1

15. The Scientific Method (Organized common sense) • State a question or problem • Gather background information • Formulate a hypothesis • Conduct an experiment • Gather Data • Write a conclusion

16. 1. Question Statement • Must be specific • Must be testable

17. 2. Background Information • Gathered in response to the initial question • Is there an answer to the question in someone else’s experiment? • Leads to the formation of the hypothesis

18. 3. Hypothesis • “Educated Guess” • Based on information gathered in previous experiments or researching • Must be tested in the experiment to see if the “guess” was correct (its ok if you’re wrong sometimes )

19. 4. Experiment • Based on the initial question statement • Tests the hypothesis • Gives you data

20. 5. Results • The “Data” section • No answers to the initial question are given • Simply lists the results of the testing done in the experiment

21. 6. Conclusion • A written statement • Answers the initial question • Evaluates the hypothesis • Sometimes another question is asked and the process starts all over!

22. The Metric System • Based on powers of 10 • Base Units with prefixes identify the magnitude (size) of the measurement

23. Prefixes K H D M D C M King Henry Died Monday Drinking Chocolate Milk Kilo, Hecto, Deca, Base, Deci, Centi, Milli Biggest          Smallest 1000, 100, 10, 1, 0.1, 0.01, 0.001

24. Converting Units(base units: gram, liter, meter) Kilo, Hecto, Deca, Base, Deci, Centi, Milli 1000, 100, 10, 1, 0.1, 0.01, 0.001 1 kilometer = 1000 meters 1 meter = 1000 millimeters 1 meter = 1/1000 kilometer 1 millimeter = 1/1000 meter

25. Dimensional AnalysisAnalyze the measurements and simplify • Find your question • Pick the correct conversion so that you cancel out the unit you don’t want • Solve the problem Example: 1,367 meters = km?