Ohm's law states a relationship between voltage, current, and charge. that less current flows when a higher voltage is applied. that for constant voltage, a greater resistance means more current will flow. that the current in a circuit increases if the potential difference increases.

Explanation:

According to Ohm's law: If the temperature of a conductor remains constant, then the current flowing through the conductor is directly proportional to the potential difference applied across the conductor.

V =  I R

where, v is the potential difference, I be the current and R be the resistance

So, when the potential difference increases, the current flowing through the conductor also increases.

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.