| Motion | Friction |
| 1. Motion is a change in position or displacement of an object with respect to time. Motion is mathematically described in terms of displacement,distance, time, and speed. | 1. Friction is the force resisting the relative motion of solid surfaces, fluid layers, and materials elements sliding against each other. |
| 2. contact between the objects is not required for motion of the object. | 2. Contact between the objects is required so that friction can come into existence. |
| 3. For example: pushing a book leads to its motion in the direction of applied force, throwing a ball etc. | 3. For example: walking on the ground, riding a bicycle etc. |
