Physics Introduction

Warm-Up: Daily Goal(s): HW: Agenda: 1st day of class Introduce yourself to your neighbors. Discuss: What is physics and how might you use it in your daily life? – Write your answer on the white paper. Agenda: Room Tour Syllabus/Rules Physics Chat Activity Daily Goal(s): Get to know each other and me Learn about common lab equipment HW: Bring a composition book to class tomorrow List the safety equipment present in the room

Class Rules – Write these down! Be prepared – have all materials (notebook, pen/pencil, calculator) ready when class begins. 2. Be on time to class and be in your seat when class begins. 3. Pay attention, listen to instructions, and learn. 4. Be polite – don’t interrupt, raise your hand and wait to be called on. 5. Respect yourself and others – don’t touch things that don’t belong to you without permission. Cell Phones – Turn them off or silent and keep them put away. Bathroom Policy: 10/10 rule applies Don’t interrupt class to ask The vending machines are not in the bathroom – snacks will be confiscated!

Grading Scheme Homework/classwork 30% Labs/Projects 30% Tests/Quizzes 30% 6 wk Tests 10%

Fill out the “About Me” section, then start at the stations. Physics Chat activity Fill out the “About Me” section, then start at the stations. Only 3 people may be at a station at a time. This is to determine what you already know, if you don’t know the answer give your best guess.

Warm – Up: Daily Goal(s): HW: Agenda: Day 2 Write your name and class period on your composition book and put it in the cabinet. Agenda: Pre-Test Daily Goal(s): P.1-P.8 HW: None

Physics Pre-Test FAQ: Is this for a grade? No What if I don’t know an answer? Give your best guess. Why are we taking a test on the second day of class? I don’t know any physics! I want to get a baseline for what you already know so I can decide what to focus on this year. Can I take a nap after I finish? If there is enough time you can, just don’t drool on the desk.

HW: Daily Goal(s): Warm – Up: Agenda: Day 3 Cut out the equipment cards and the common physics equipment list and place them in your notebook. Agenda: Go over commonly used equipment in physics Set up notebooks Scientific Method Daily Goal(s): Learn the scientific method Learn the difference between scientific theory and scientific laws HW: Get Lab Safety contract signed and returned

the scientific method Science- a process that uses observation and investigation to learn about nature. Scientific Method- an organized set of investigation procedures. Hypothesis- a testable prediction Experiment- an organized procedure for testing the hypothesis Control- a standard for comparison Constant- a factor in an experiment that stays the same Independent variable- the manipulated variable (x – axis) Dependent variable- the responding variable (y – axis)

The scientific method cont. Steps: Ask a question or make an observation. Research the question to find out what other people know. Form a hypothesis that predicts what will happen in a certain circumstance. Design and perform an experiment to test your hypothesis. Gather and analyze the data from the experiment. Draw conclusions based on your data. Share your results with others. Decide if further research is needed. Repeat as necessary

Q. What is an example of a hypothesis? A. If the speed of the ball increases, then the ball will travel farther in the same amount of time. A good hypothesis should be: Testable- there should be a way to test it. Falsifiable- there should be a way to know it is wrong.

Scientific law vs. scientific theory A rule of nature that sums up related observations to describe a pattern in nature. States what happens. Often written as an equation. Ex: Newton’s Laws of Motion An explanation based on experiments and observations. Explains what happens. NEVER becomes a law. Ex: Germ Theory of Disease

Warm – Up: Daily Goal(s): Agenda: HW: Day 4 What are the English(American) units for: time, distance, mass, volume, and temperature? Agenda: Measurement in Physics Metric System Accuracy vs. Precision Daily Goal(s): P.2H – make measurements with accuracy and precision and record data using scientific notation and SI Units HW: Complete the Accuracy vs. Precision worksheet

Measurement in Physics The SI stands for "System International”.  There are 3 fundamental SI units for LENGTH, MASS, and TIME.  They basically breakdown like this: This is the MKS system – meter, kilogram, second. Of course there are many other units to consider. Many times, however, we express these units with prefixes attached to the front. This will, of course, make the number either larger or smaller. The nice thing about the prefix is that you can write a couple of numbers down and have the unit signify something larger.

Most common prefixes in physics Factor Symbol Mega- ( mostly used for radio station frequencies) x 106 M Kilo- ( used for just about anything, Europe uses the Kilometer instead of the mile on its roads) x 103 K Centi- ( Used significantly to express small distances in optics. This is the unit MOST people forget to convert) x 10-2 c Milli- ( Used sometimes to express small distances) x 10-3 m Micro- ( Used mostly in electronics to express the value of a charge or capacitor) x 10-6 Nano ( Used to express the distance between wave crests when dealing with light and the electromagnetic spectrum) x 10-9 n

Accuracy and Precision Accuracy- how close a measurement is to an accepted value Precision- how close measurements are to each other

Warm-Ups: Daily Goal(s): Agenda: HW: Day 5 Which is larger, 1000 meters or 1 kilometer? Explain your answer using complete sentences. Agenda: Solving Equations Scientific Notation Calculator Practice Daily Goal(s): P.2H - make measurements with accuracy and precision and record data using scientific notation and SI Units HW: Finish Scientific Notation worksheet

Math in Physics Dimensional Analysis is simply a technique you can use to convert from one unit to another. The main thing you have to remember is that the GIVEN UNIT MUST CANCEL OUT. Suppose we want to convert 65 mph to ft/s or m/s.

scientific notation Scientific Notation- a quick way to write very large or very small numbers Rules: Place a decimal point to the right of the first non-zero number. Multiply the number times ten raised to some power. If the original number is larger than one, the power is positive If the original number is smaller than one, the power is negative Ex: 20645 2.0645× 10 4 Ex: 0.00695 6.95× 10 −3

Warm-Up: Daily Goal(s): Agenda: HW: Day 6-7 Explain the difference between the dependent variable and the independent variable in an experiment. Agenda: Lab Safety Lab Safety Test Pre-Lab Daily Goal(s): P.1A – demonstrate safe practices during laboratory investigations P.2E – design and implement investigative procedures HW: Complete Pre-Lab Questions

Lab Safety Zombie Lab Safety Video Fill in the lab safety worksheet as you watch the video

Designing an Experiment Form groups of four Pick up a toy car Brainstorm a strategy for answering the questions: What question about speed do you want to ask? What equipment will be needed? What data can be gathered? How will we present the data? Carry out your Experiment.

Lab Design Goal: Answer the question Procedures: Choose one question meet, discuss, plan (10 min.) groups present to class (15 min.) discussion and consensus on lab to use (5 min.) groups return to stations and complete the lab using class-approved technique (20 min.) complete lab reports (10 min.)

Daily Goal(s): Warm-Up: Agenda: HW: Day 8 What is the purpose of having a control in an experiment? Agenda: Finish Lab Present Lab results Daily Goal(s): P.1A – demonstrate safe practices during laboratory investigations P.2E – design and implement investigative procedures HW: None

Presentations Each group will: The whole class will: Record results on the board at the side of the room Present to the class your conclusions The whole class will: Politely discuss the results and the reasons that some groups have different results than others Each student will: Remain polite at all times Take turns speaking and not talk over their class mates

Warm – Up: Daily Goal(s): Agenda: HW: Day 9 Explain why scientists use double-blind experiments when testing new medications. Agenda: Review of Unit one Notebook check Daily Goal(s): P.1 – P.3 HW: Study for Unit test

Unit 1 Review

Notebook Template Notebook Check: Your notebook should look similar to this: It does not have to be exactly the same. Notebook Template