Mechanism Gears

what is this

• gear train with idler

• cam and follower

• worm gear and worm wheel

• bevel gear

what is this

• gear train with idler

• bevel gear

• cam and follower

• universal joint

A comparison of the number of teeth of one gear to another.

• gear total
• gear purpose
• gear ratio 

Which mechanism would you use to ride up a hill?

• A

• B

What happens to speed
when you increase torque?

• Speed Increases
• Speed decreases
• Speed stays the same

The input gear has 6 teeth.
The output gear has 48 teeth.  The gear ratio is...

• 1:8
• 8:1
• 6:48

What is the best explanation for a gear train with a 7:1 gear ratio?

• The driver gear turns faster than the driven gear.

• The driver gear turns slower than the driven gear.

• The driver gear turns the same speed as the driven gear.

If the small gear is driving the large gear, what is happening to the torque?

• Increases

• Decreases

• Remains constant

• Not enough information

What is the name of this mechanism?

• Gear Train

• Ratchet and Pawl

• Worm gear and Worm Wheel

• Rack and Pinion

What happens to the output speed in this mechanism when the hand turns the bigger pulley?

• Increases

• Decreases

• Remains Constant