Mechanical Advantage

You can use gears in your robot to ________.

• create a torque advantage
• create a speed advantage
• create either torque or speed advantages, depending on what the robot needs to do
• None of the above

If gears are connected together as in a gear box, how do you calculate the total gear ratio?

• Add each gear ratio in the chain
• Multiply each gear ratio in the chain
• Divide the teeth on the first driving gear by the teeth on the final, output gear
• None of the answers are correct.

If you were riding a bicycle, how would you be using gears?

• Changing gears lets you pedal more easily or makes you need more force to pedal
• Changing gears lets your pedaling make you move farther or shorter distances.
• Changing gears lets you pedal easily up steep hills or quickly across even surfaces.
• All of the answers are correct.

True or False: A gear box can demonstrate a high or low gear configuration.

• True
• False

Which configuration will result in the highest torque output?

• Large driving gear, large driven gear
• Large driving gear, small driven gear
• Small driving gear, small driven gear
• Small driving gear, large driven gear

The driven gear _______.

• does the turning
• is always larger than the driving gear
• is always smaller than the driving gear
• is turned by the driving gear