* Balanced forces: When forces are balanced, they have equal magnitudes but act in opposite directions. This means they cancel each other out.
* Newton's First Law: This law states that an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction unless acted upon by an unbalanced force.
* Effect of balanced forces: Since balanced forces effectively cancel each other, they don't create a net force. Without a net force, there's no acceleration (change in motion).
Example: Imagine a box sitting on a table. The force of gravity pulls the box down, but the table pushes back with an equal and opposite force. These forces are balanced, so the box remains stationary.
