The maximum number of songs that every iPod is capable of storing varies upon the length of songs, file type, format, and encoding used. Using the iPod to hold photos and videos (when applicable), likewise can reduce the number of songs the iPod can store. However, the capacity of every iPod in gigabytes, along with the Apple estimated number of songs that each can hold, is provided below: iPod Name. Capacity (GB) Estimated Songs.
Friction. Causes of Friction. Friction is a force resisting motion of an object when in contact with another. This resistive force is caused by the surface roughness of the contact area of the materials, molecular attraction or adhesion between materials, and deformations in the materials.
Forces change motion. A force is a push or a pull. Forces give energy to objects to cause them to start moving, stop moving, change direction, or change the shape of objects. Forces are required to accelerate an object. Types of Forces: 1) Contact Force is when one object pushes or pulls an object by touching it. 2) Gravity is the force of attraction between two masses. 3) Friction is the force that resists motion between two surfaces in contact with each other.