Gear Ratio

A force in a circular direction is called

• rotary motion.

• torque.

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

• gear total
• gear purpose
• gear ratio 

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 drive gear turns 1 time for every 7 turns of the driven gear.

• The driven gear turns 7 times for 1 turn of the drive gear.

• The gear goes fast!

When gears are equal in size, what is the gear ratio?

• 1:2
• 1:3
• 2:5
• 1:1

What is the gear ratio of these meshed gears if the input gear has 36 teeth?

• 36:60
• 60:36
• 3:5
• 5:3

If the large gear has an RPM of 86, what will the small gears RPM be?
60T and 36T

• 1.67 RPM
• 51 RPM
• 125 RPM
• 143 RPM