Calculating Gear Ratios

Students will be introduced to the concept of gear ratios and how they affect the speed and torque of mechanisms. 

Lesson Notes

Homework Assignment: Gear Ratios Homework

Students draw/copy the gear box in their notebook and calculate the gear ratios for each. 

Answer Key

1. GR = 5/3 Slower speed, more torque

2. GR = 1/5 Faster speed, less torque

3. GR = 3/5 Faster speed, less torque

4. GR = 3 Slower speed, more torque

5. GR = 1/5 Faster speed, less torque

6. GR = 1 Equal speed and torque