Give an example of a force exerted on an object that causes it to move and an example of a force exerted on an object that does not cause it to move. Are the forces on the objects balanced or unbalanced?
Example of a force exerted on an object that causes it to move: pushing a book across a table.
Example of a force exerted on an object that does not cause it to move: pushing against a stationary wall.
In the first example, the force applied to the book is unbalanced, as there is a greater force acting in one direction (the push) than in the opposite direction (friction). This causes the book to move.
In the second example, the force applied to the wall is balanced, as there is an equal and opposite force acting back on the individual (Newton's third law). The wall exerts an equal amount of force, canceling out the force applied by the person, and therefore, the object (wall) does not move.