Statics

MODULE OR INTENSITY OF A FORCE

Click the cursor on the spring and pull it down. Observe and answer:

a) Does the force you exert increase or decrease as the spring stretches?

Click on the Force control and stretch the spring again. Observe carefully and answer:

a) What do you think the arrow tries to symbolize?

b) What relationship exists between the size of the arrow and the force exerted on the spring?

Definition

The module of a force is a number which indicates its intensity. Its unit in the Système International d'Unités is the newton (N)

Forces are symbolized with arrows. Its size is directly proportional to the module of the force it represents.