ifferent Kinds of Forces: weight, normal force, frictional force, applied (push, pull) force, tension (strings or cables)

Question 1

Define weight Fg

Answer 1

Fg is the gravitational force the Earth exerts on any object on or near its surface.

Weight is a vector quantity and is dependent on the local gravitational field strength.

Question 2

Define normal force FN

Answer 2

FN is the perpendicular force exerted by a surface on an object in contact with it.

The normal force acts perpendicular to the contact surface.

Question 3

Define frictional force Ff

Answer 3

Ff is the force that opposes the motion of an object.

Frictional force can vary based on the surfaces in contact and the normal force.

Question 4

How does the frictional force act in relation to the surface?

Answer 4

The frictional force acts parallel to the surface with which the object is in contact.

This characteristic is essential for understanding the mechanics of motion and resistance.