gears_and_speed.ppt | |
File Size: | 1849 kb |
File Type: | ppt |
Gears and Speed
In this activity, you will investigate the validity of two different hypotheses by using them to predict
the speed of the robot with new gear ratios. You will then run the robot and compare the actual speed to
the predicted speed to determine which hypothesis is valid.
Unit summary: students will…
Prerequisites:
Central Concepts
Math
• Ratios & Proportions
• Fractions
• Direct and Indirect Relationships
• Table & Data Organization
• Unit Conversion
Science
• Speed & Distance
• Gears & Gear Ratios
• Force and Torque
• Verification of Hypotheses
• Data Analysis & Acquisition
Technology
• Design Tradeoffs
• Systems and Measurement
• Mechanical Elements
• Drive Train Design
Communication
• Reasoning with Evidence
• Explanatory, Expository, & Descriptive Composition
the speed of the robot with new gear ratios. You will then run the robot and compare the actual speed to
the predicted speed to determine which hypothesis is valid.
Unit summary: students will…
- Swap the gears on the robot and run it for 3 seconds with each gear ratio
- Calculate gear ratios for each new gear pair
- Measure how far the robot travels during each run, and calculate its average speed
- Use two different hypotheses to predict how fast the robot will go with two new gear ratios
- Run the robot and compare the actual results to the results predict by each hypothesis
- Synthesize data to determine which of two hypotheses is more valid
Prerequisites:
- Make sure all Taskbots have a 1:1 gear ratio
- Get in Gear Activity
- Presented the Gears and Speed powerpoint
- Review gear ratios, speed, torque
- Review measurement techniques, data collection and organization
Central Concepts
Math
• Ratios & Proportions
• Fractions
• Direct and Indirect Relationships
• Table & Data Organization
• Unit Conversion
Science
• Speed & Distance
• Gears & Gear Ratios
• Force and Torque
• Verification of Hypotheses
• Data Analysis & Acquisition
Technology
• Design Tradeoffs
• Systems and Measurement
• Mechanical Elements
• Drive Train Design
Communication
• Reasoning with Evidence
• Explanatory, Expository, & Descriptive Composition
gears_and_speed.pdf | |
File Size: | 106 kb |
File Type: |