Intro to Robotics ACP

What does a 1:6 gear ratio mean?

• It means the input gear has to turn 1 time to turn the output gear 6 times.

• It means the output gear has to turn 1 time to turn the input gear 6 times.

When speed increases, what happens to the value of torque?

• increases
• decreases
• stays constant

When speed decreases, what happens to the value of torque?

• increases
• decreases
• stays constant

When a input gear is larger than a output gear you have.....

• Increased Speed

• Increased Torque

When on a bike going uphill, what happens to the speed and torque?

• Speed decreases; torques increases
• Speed decreases; torques decreases
• Speed increases; torques decreases
• Speed increases; torques increases

When on a bike going downhill, what happens to the speed and torque?

• Speed decreases; torques increases
• Speed decreases; torques decreases
• Speed increases; torques decreases
• Speed increases; torques increases

What is the function of the smaller or "idle" gear?

• Makes the output gear turn slower

• Makes the output gear turn faster

• Makes the larger gears turn in opposite directions.

• Makes the larger gears turn in the same direction.

A 36 tooth driving gear (connected to the motor) is moving a 12 tooth driven gear. What is the gear ratio?... It has a speed advantage.

• 3:1

• 1:3

• 3:3

• 1:1

A 12 Tooth driving gear (connected to the motor) is connected to a 36 tooth driven gear. What is the gear ratio and mechanical advantage?

• 3 : 1 Torque Advantage

• 3 : 1 Speed Advantage

• no Mechanical Advantage

• 1 : 3 Torque Advantage

What is the gear ratio with a driving gear with 40 teeth and a driven gear with 8 teeth?

Make sure ratio is reduced to lowest terms

• 8 : 40

• 1 : 5

• 5 : 1

• 40 : 8