What kind of gear?
Gearing up or down?
Bicycle bonus
Gear Math
100

This is the part of the gear that can mesh with another.

Teeth

100

A smaller gear driving a larger gear is called...

Gearing down

100

A multi-gear bicycle allows for what accommodation with respect to difficulty?

Changing gears

100

If a smaller gear in a gear train has 10 teeth, how many teeth does the next gear have, if it's double the size?

20 teeth

200

This is another name for a gear.

Cogwheel

200

A larger gear driving a smaller gear is called...

Gearing up

200

Going uphill, which size of gear is better in the front and back of a bicycle gear system?

Smaller gear in front, larger gear in the back

200

If a gear teeth ratio is 15:30, how many times around will the little gear spin, while the larger gear spins once?

Twice

300

It has a right angle mesh connection.

Bevel gear

300

A gear tooth ratio of 8:4, with the 8 as the driver gear is...

Gearing up

300

On flat ground for speed, which size of gear is better in the front and back of a bicycle gear system?

Larger gear in front, smaller gear in the back

300

If a gear teeth ratio is 24:6, how many times does the smaller gear spin around, when the larger gear spins once?

Four times

400

This kind of gear has horizontal movement rather than circular movement.

Rack and pinion gear

400

A gear tooth ratio of 16:32, with the 8 as the driver gear is...

Gearing down

400

Explain the relationship between smaller and larger gears uphill vs. on flat ground.

Smaller gear, less effort, more times around; larger gear, more effort, less times around

400

If a gear ratio is 64:8, how many times does the larger gear spin, if the smaller gear spins 8 times?

Once