Understanding Gear Ratios in Robotics

What is the purpose of using different gear ratios in the VEX EDR system?

• To customize power transfer, increase torque, or increase speed

• To decrease the size of the robot

• To simplify the design of the robot

• To reduce the cost of the robot

In a 5:1 gear ratio, what happens to the speed and torque?

• Speed decreases, torque increases

• Speed increases, torque decreases

• Both speed and torque increase

• Both speed and torque decrease

What is the effect of using an idler gear between two gears?

• Changes the direction of the driven gear

• Increases the speed of the driven gear

• Increases the torque of the driven gear

• Changes the gear ratio

How is the gear ratio calculated in the VEX EDR system?

• Number of teeth on the driving gear divided by the number of teeth on the driven gear

• Number of teeth on the driven gear divided by the number of teeth on the driving gear

• Sum of the teeth on both gears

• Difference in the number of teeth between the two gears

What happens when two gears of the same size are meshed together?

• No change in speed or torque

• Increase in speed

• Increase in torque

• Change in direction