D2.2 Gears

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.

What's the ratio?

• 1:1

• 84 : 60

• 60 : 36

Looking at the picture, what is the gear ratio?

• 6:10
• 3:10
• 10:6
• 3:5

True or false; both speed and torque can increase at the same time.

• true
• false
• not enough information

True or false; the starting gear is the input gear.

• true
• false
• not enough information

When gears are the same size they turn the same number of times.

• True
• False

Which gear is the output?

• A

• B

Which gear is the drive (input)? 

• A
• B

How do you determine the ratio between two gears?

• # of teeth of input gear/# of teeth of input gear

• # of teeth of input gear/# of teeth of output gear

• # of teeth of output gear/# of teeth of input gear

• # of teeth of output gear/# of teeth of output gear

When a larger gear is connected to a motor and the smaller gear is driven the speed_______

• Speed increases

• Speed Decreases

• stays the same

• will not move