Resolution 242, calling on Israel to withdraw from the territories it won in its war against Arab aggression in 1967, is known as a Chapter 6 resolution under the UN Charter. In such cases, the Security Council makes non-binding recommendations aimed at the peaceful resolution of disputes.
By contrast, Resolution 1441, calling on Iraq to give up its weapons of mass destruction following its August, 1990 invasion of Kuwait and its continued non-compliance with the UN, is a Chapter 7 resolution. As The Economist explained last October in contrasting the Israel and Iraq situations, Chapter 7 resolutions give the Security Council "broad powers to take action, including warlike action (my italics), to deal with" to quote directly from the UN Charter, "any threat to the peace, breach of the peace, or act of aggression."
Chapter 6 of the UN Charter (under which the resolutions pertaining to Israel were issued) concerns "PACIFIC SETTLEMENT OF DISPUTES", and may be seen Here.
By contrast, Chapter 7 (under which resolution 1441 was issued) concerns "ACTION WITH RESPECT TO THREATS TO THE PEACE, BREACHES OF THE PEACE, AND ACTS OF AGGRESSION", and may be seen Here.
Also see the Canadian National Defense Land Force Doctrine and Training System - Peace Support Operations Field Book which talks about Chapter 6, the colloquially-described "Chapter six and a half", and Chapter 7 as they apply to peacekeeping implementation. It compares the role of peacekeeping troops under Chapter 6 as "umpires or referees", the "Chapter six and a half" operations where additional mandates may require the use of force short of full combat and peace enforcement, and Chapter 7 which entails corecive measures to deal with threats to peace.