Which term describes the time it takes for an object to complete one full cycle of motion on a spring? a. period b. frequency c. amplitude d. time e. force

option (A) is correct

Explanation:

The taken to complete one full cycle of motion on a spring is called its period or time period.

It is denoted by T and its SI unit is second.

The number of oscillations completed in one second is called frequency. It is denoted by f and its SI unit is Hertz.

Period is the reciprocal of frequency.

The maximum displacement from its mean position is called amplitude. Its SI unit is metre.

i'm only doing this for the points : (

explanation:

i'm only doing this the points

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.