Activity:

• Quiz on Simple Machines - Go to Classroom and take the Unit 1.1.1 Simple Machines Quiz.

• Finish Gears Activity if needed.

• Review results and summarize how we talk about gear ratios (i.e. GR of 2:1 means the IN gear turns two times for every one turn of the OUT gear).

HW:

• Complete pulleys and sprockets practice

Activity:

• Quiz on Simple Machines - Paper/Pencil Simple Machines Quiz.

• Finish Gears Activity if needed.

• Review results and summarize how we talk about gear ratios (i.e. GR of 2:1 means the IN gear turns two times for every one turn of the OUT gear).

HW:

ACTIVITY:

• PPT: 1.1.3 Gears/Pulleys/Sprocket - Discuss Simple and Compound Gear Train ratios.  

  • Time in class to work on Activity 1.1.5 Gears and Pulleys Practice Problems 1-13

  • Review Gears and Pulleys 1.1.5 Answers as a class

• If time, begin working on Compound Machine 1.1.6 project

  • Complete each of the steps below today:

    • Brainstorm at least 2 ideas

    • Using isometric grid paper and create an annotated sketch for BOTH of your brainstormed ideas.  Include approximate IMAs and drive ratios.

    • BEFORE you may start building you MUST get Mr. Tackett's signature for approval.  Be ready for some constructive feedback.

HW:

• No HW weekend

• Quiz on Gears, Pulleys, and Sprockets Wednesday - be able to draw and label a simple and compound gear train, identify the in/driver and out/driven, and calculate gear ratios to include rotational speed, number of teeth, diameter, and torque.

ACTIVITY:

No school - President's Day

ACTIVITY:

• Review HW

• Quiz on Gears, Pulleys, and Sprockets

• If time after quiz, continue designing and building your compound machine.

  • Be sure to calculate the IMA and Drive ratios of your compound machine as you build it.  Calculate the overall MA of your machine by multiplying each IMA and Drive ratio together to get your overall MA.

  • Refer to the report format indicated in the Activity Compound Machine 1.1.6 project.

HW:

ACTIVITY:

• Continue building  your compound machines and collect force data for determining your AMA.

HW:

• Tomorrow, groups will present their compound machine by simply demonstrating the function of your machine.  Be prepared to discuss the overall IMA, AMA, and Efficiency of your compound machine.  You do NOT need to created a slides presentation, just make sure your IMA, AMA, and Efficiency values are calculated and ready to share with the class.

ACTIVITY:

• Continue building  your compound machines and collect force data for determining your AMA.

• Report is due Thursday using the format indicated in the Activity Compound Machine 1.1.6 project.

HW: