Some of the content of this guide was modeled after a guide published by OpenStax and has been adapted for the NWP Learning Commons in March 2022. This work is licensed under a Creative Commons BY 4.0 International License.
Force is a push or a pull. The concept of force is a qualitative description of the interaction between two bodies or between a body and its environment.
Contact Force
Involves direct contact between two bodies. Examples include: pushing a block with your hands or friction of the block with the ground.
Long-Range Force
Acts between bodies separated by empty space. Examples include: gravitational pull on the moon from the earth or magnetic fields pulling on each other.