Force - JSS1 Basic science Past Questions and Answers - page 2

An example of a contact force is the force exerted when you push a door to open it.

An example of a non-contact force is the gravitational force exerted by the Earth on an object, even when they are not in physical contact.

Frictional force opposes the motion of objects sliding against each other, causing them to slow down or come to a stop.

The strength of the gravitational force between two objects depends on their masses and the distance between them. The greater the masses and the shorter the distance between the objects, the stronger the gravitational force.

Tension force is often observed in everyday scenarios such as when a person pulls on a rope to lift an object or when a string holds up a hanging decoration.

Magnets can either attract or repel each other depending on the orientation of their poles. Like poles repel each other, while opposite poles attract. This interaction is due to the magnetic force between the magnets.