Force

Topic Objectives

By the end of this topic, the learner should be able to:

• Define force and state its SI unit;
• Describe types of forces;
• Describe experiments to illustrate cohesion, adhesion and surface tension;
• State the effects of force;
• State the difference between mass and weight;
• State the relation between mass and weight, W = mg;
• Define scalar and vector quantities;
• Solve numerical problems involving W = mg.