V13 · complete text alternative

V13 · A small real fact about forces. Tiny original factual wording: Contact forces can change an object’s movement or shape. Pushing or pulling with a hand is a contact interaction. Primary explanation: Questacon, Year4 at Home Forces, page1; adult indexed reading12October2026. This general explanation is not a Year1 official task or a result for any fictional case. https://www.questacon.edu.au/sites/default/files/assets/discover/questacon-at-home/Year%204_Questacon%20at%20Home%20Activity%20Sheet_Forces.pdf . No provider media/expression copied, no assumed blanket licence.