Force is measured in newtons (N). You cannot see a force but you can see its effect. For example, when you apply a force to push a door open. Vector quantities have both a magnitude and a direction.

Van der Waals forces represent a fundamental type of interaction between molecules ... Influencing the assembly and properties of nanomaterials. Real-World Examples of Van der Waals Forces One of the ...

'Unchanging motion' is when the body is at rest or is moving with a steady speed in a straight line. Balanced forces are responsible for unchanging motion. Balanced forces are forces where the ...