Gravitation and weightlessness - JSS1 Basic science Past Questions and Answers - page 2

Force is a push or pull that can change the state of motion or shape of an object.

Weightlessness occurs when an object experiences no force due to gravity, commonly observed in space or during free fall.

There are four fundamental types of forces: gravitational, electromagnetic, weak nuclear, and strong nuclear.

Gravitational force is the natural attraction between objects with mass, which gives objects weight and keeps them grounded on Earth.