From Section 22 of the Motorcycle Ohio Motorcycle Operator Manual

Ohio Motorcycle Three-wheel Motorcycles Practice Test

Trikes and sidecars: handling and the three-wheel test.

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Hills
Riding uphill on a three-wheeler or sidecar rig shifts weight to the rear, making the front lighter and reducing front traction for steering. Riding downhill, gravity increases the braking force needed, so begin slowing earlier for corners and stops. Section 22
Lane Position
A three-wheeler is about as wide as some cars, so lane position is limited: keep toward the center of the lane, within the markings. In groups, ride single file with at least four seconds between vehicles. Park parallel to the curb with the parking brake set or in gear. Section 22
Swerving
A three-wheeler is less maneuverable than a two-wheeler, so look well ahead to avoid sudden turns. Section 22
Stopping Quickly
On a standard trike (one front wheel, two rear) the rear wheels have more braking power, because weight doesn't shift forward in hard braking. Section 22
Unique Operating Characteristics of a Motorcycle with a Sidecar
Check whether your sidecar has brakes; without them, stopping distance and handling are affected and you may need to steer slightly toward the sidecar when braking. Section 22
Turning Right
On a sidecar rig a left turn taken too sharp or fast can lift the motorcycle's rear wheel and put the sidecar's nose on the pavement. Section 22

Practice material, not the official test: check every answer in your state's current handbook. Disclaimer