1. What is Physics?

2. Objectives Compare and contrast hypothesis, theory and law. 12.1.1.a Know the steps of the scientific method. 12.1.1.b Distinguish between control, independent and dependent variable. 12.1.1.c Distinguish between the different areas of physics.

3. The study of the physical world. Mechanics – Motion & its causes, object interactions Thermodynamics – Heat & temperature Wave phenomena – Repetitive motions Optics – Light (reflection, refraction, etc.) Electromagnetism – Magnets, electricity, light Relativity – Particles at very high speeds Quantum Mechanics – Submicroscopic behavior

4. Galileo Most famous for using the telescope to prove the heliocentric model of the solar system. Aristotle thought that heavier objects fall faster than lighter ones Galileo said um... No.

5. Define “theory” – An idea that explains a phenomena and is supported by many experiments. Define “law” – A statement or formula that accurately predicts events Define “hypothesis” – An educated guess hypothesis  theory  law

6. Chubby Bunny Data Name# of Marshmallows Eaten

8. Parts of An Experiment Independent Variable – The thing you are testing. Dependant Variable – The thing you are measuring. Constant – All the stuff you keep the same. Control – Something to compare your results to.

9. Remember A good experiment tests ONE independent variable at a time

10. Students will be able to make a decent graph. 12.1.1.h,g,f Students will be able to identify the appropriate SI base units. 12.1.1.f,l Students will compare and contrast qualitative and quantitative data. 12.1.1.e Objectives

12. The English System of Measurement Grew out of the creative way that people measured for themselves Familiar objects and parts of the body were used as measuring devices.

13. English System Length – 12 inches (in) = 1 foot (ft) – 3 feet = 1 yard (yd) – 5280 feet = 1 mile (mi) Weight – 16 ounces (oz) = 1 pound (lb) – 2000 lb = 1 ton Volume – 16 tbsp = 1 cup (c) 8 ounces (oz) = 1 c 2 c = 1 pint (pt)

14. YUCK!

15. Metric System (SI) pg 18 Based on powers of 10 Base Units QuantityUnitSymbol Length kelvin A candela Mass mole s

16. The Power of 10 PrefixSymbolMultiple or Sub multipleValuePower of ten megaMone million1,000,000 10 6 kilokone thousand1,000 10 3 hectohone hundred100 10 2 dekadaten10 decidone tenth0.1 10 -1 centicone hundredth0.01 10 -2 millimone thousandth0.001 10 -3 micro  one millionth0.000001 10 -6

17. Now Try These! 1. What is the prefix for 1000? 2. What does the prefix deci represent? 3. What is the prefix for.001? 4. What does the prefix centi represent? 5. What is the prefix for 100?

18. Metric Conversions

19. Types of data Qualitative – Descriptions of what is happening. James I laughing while he says “Chubby Bunny” Quantitative – Numbers or quantities James could fit 7 marshmallows in his mouth.