Do you currently have motorcycle insurance? Insurance is mandatory to drive in California Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question When traveling down a downgrade, the speed of a vehicle will likely: Answers Decrease. Stay the same. Increase. Explanation The force of gravity will cause a vehicle's speed to increase when traveling downhill. Take a FREE Practice Test Now This questions appears in the following tests: Louisiana Knowledge Test Class A , Maryland Knowledge Test Class B , Nevada Knowledge Test Class B , Maine Double , Ohio Double , Washington Double , Rhode Island Passenger ,