gear train

Find the gear ratio of the given simple gear train?

• 5

• 0.5

• 4

• 3

In this gear train, the middle gear is considered an _______ gear

• Idler
• Input
• Output

Which gear is the idler?

• A

• B

• C

• None of them

The input gear has 6 teeth.

The output gear has 48 teeth. The gear ratio is...

• 1:8

• 8:1

• 6:4

What happens to speed
when you increase torque?

• Speed Increases
• Speed decreases
• Speed stays the same

The purpose of the IDLER GEAR is to ____________.

• change the speed of rotation
• make the model harder to build
• add more gears for fun
• change the direction of rotation

To INCREASE speed of rotation, you can ____________________.

• add more gears
• change from a LARGE gear to a SMALL gear
• turn the handle less times
• change from a SMALL gear to a LARGE gear

If you need to move fast, then

use a smaller _______ gear.

• driven

• driving

• idler

• train

Which gear is the drive (input)? 

• A
• B

Which gear train provides more torque?

• A
• B