1. 1. NAME THREE OF THE FIVE CLASSROOM RULES. 2. NAME THREE LAB SAFETY RULES 3. WHAT IS THE PROCEDURE FOR ENTERING THE CLASSROOM? 4. NAME THE FOUR LAB ROLES AND AT LEAST ONE OF THE RESPONSIBILITIES FOR EACH. Bell ringer Quiz: Take out a half sheet of paper

2. Switch and let’s grade as we review http://prezi.com/dwvdgkt7tkfa/torales-class-rules/ Quiz  1. Point for each correct rule (3 total)  2. Point for each correct lab safety rule (3 total)  3. Point for correct answer only (1 total)  4. Point for each correct lab role AND at point for each correct responsibility (8 total)

3. Page 62: Would you rather? Answer the following questions in paragraph form. You must be able to defend your answer with the science concepts that we have already reviewed. 1. Would you rather be hit with something large with a slow acceleration or something small with a large acceleration?? 2. Would you rather submit your body to large amounts of work, like riding in a f-18 fighter plane or large amounts of torque. like a crazy spinning ride at the carnival?? 3. Would you rather shock yourself for 1 minute with a very large voltage (like lightening, a tazer or sticking your finger in a socket) or submit yourself to 10 minutes in the middle of a hot dry sauna that is 65 degrees Celsius/150 degrees Fahrenheit (like sitting in a hot car in the summer)?

4. Let’s Debate

5. Some videos to see if you still agree with your decision Rampage v. sumo wrestler http://www.youtube.com/watch?v=jzYMX_3K_xE G forces and rotational forces http://www.youtube.com/watch?v=O4lwAzGRONU http://www.youtube.com/watch?v=U1e93JU4Gn4 http://www.youtube.com/watch?v=A4uyO2A6Uag Lightening or temperature http://www.youtube.com/watch?v=uqZP2HyudEM http://www.youtube.com/watch?v=LG3PF-wnjqI http://www.youtube.com/watch?v=lqwPS6wJN-c&feature=related

6. Exit Slip: Page 61 Now use the debate and what you saw or heard to go back and look at your answers. Write 1 paragraph if you would keep your answers the same and explain why. Write 1 paragraph if you would change your answers and explain why. If you wouldn’t change anything, then write two paragraphs verifying your answers to me about you sticking with your gut. Total writing = 2 paragraphs I will come by and stamp your paragraphs

7. Bell Ringer #2  On post-it 1. Why is a larger doorknob easier to turn than a smaller doorknob? 2. How are horsepower and torque related when talking about cars? 3. Give one example of torque in your everyday life besides opening a door.

8. PAGE 64 LAB 2.1:Measuring Torque and Doing Work with a Wheel and an Axis

9. Objectives:  Explain how to generate a torque.  Determine the torque generated when a wheel and an axle lift an object.  Identify the components present when torques are in equilibrium.  Draw an accurate force diagram for the experimental apparatus when in equilibrium.  Determine the work done in a rotational system. Lab Proficiencies:  Set up and perform an experiment that will cause torque on a wheel and an axle.  Measure the variables causing torque on a wheel and axle.  Measure force with a spring scale.  Measure distances with a meter stick. Materials:  Spring Scale, 5.0 NewtonSmall weight SetBlack Marker  5/64 Allen WrenchNylon CordsHooks,2  Three-Stepped Pulley30 cm RulerDelrin Block  Scale Weight HangerMechanical Breadboard Setup as Shown

10. When you get in your lab groups… 1. Bring your notebook, pencil, and calculator (if you brought it). 2. Assign roles and write your group members and their roles on the bottom first page of your lab data sheet. 3. Send your Materials Manager to collect safety glasses (sanitized) and a calculator for your group. 4. Have your Head Physicist read the Discussion to everyone. Head Physicist makes sure everyone understands the concepts before proceeding with the lab. 5. Wear your safety glasses AT ALL TIMES and begin. 6. Lab Instructions will be on your lab table. 7. Submit 2.1A Data Sheet today.

11. Reminders When I walk by I want to hear the HEAD PHYSICISTS reading the discussion and procedures out loud to the rest of the group. Pay Attention to lab! Be alert or you will get hurt!! Equation review:  Torque  = F x r  WorkW = F x d  ForceF = m x g (g=9.8 m/s 2 )  WorkW = F x  where  is the angle in radians  1 revolution is equal to  r

12. Page 63: Lab 2.1A Data, Procedure, and Conclusion Procedure  At least 6 numbered steps  Should be easy to follow  May use diagrams Conclusion: Conclusion: Did you meet your objective? Why or why not? Did you meet your objective? Why or why not? What possible sources of error could have affected your data? What possible sources of error could have affected your data? What did you learn from this lab? What did you learn from this lab? How was your group able to rely on your in your assigned role? How was your group able to rely on your in your assigned role? Exit Slip:  Turn in the 2.1A Data Sheet HWA:  Finish Procedure and Conclusion Questions  Remember to use the given Objectives  Write your answers in complete sentences