4.2.5 Under pressure
On this page we explore how forces applied over a surface area produce pressure. Inquiry questions Disciplinary concepts Why does a knife cut? Indeed, why does a sharp knife cut better than a blunt (dull) knife? When we apply a force to the knife handle, the force is transferred to the edge of the knife blade and from there into the onion or whatever else we are cutting. But how the force is transferred is important...