A research team has recently devised a novel mechanism to transport droplets at record-high velocity and distance without extra energy input, and droplets can be moved upward along a vertical surface, ...

Save guides, add subjects and pick up where you left off with your BBC account. Multiple forces act on an object at the same time. The size and direction of these forces determines the movement of the ...

When an object is falling, the two main forces acting on it are weight close weightA force that acts on mass, pulling it down, due to gravity. Weight is a force and forces are measured in newtons (N).