Module: Electricity
I. OBJECTIVES:
Content Standards
The learners demonstrate an understanding of charges and
the different charging processes.
Performance
Standards
The learners shall be able to apply the topic in real life
situations by conserving electricity.
Specific Learning
Objectives /
Learning
Competencies
The Learners should be able to…
1. describe the different types of charging processes; and
2. explain the importance of earthing or grounding.
II. DISCUSSION:
Types of Charges
The varying atomic composition of different materials gives them different electrical
properties. One of which is the ability of a material to lose or gain electrons when they come
into contact with a different material through friction.
Matter is made up of small particles called atom. These particles are called protons,
electrons, and neutrons. Protons and electrons have charges. Protons are positively charged
particles while electrons are negatively charged particles. Neutrons are neutrally charged
particles.
When you pulled the tape vigorously from the table, some of the electrons from the table’s
surface were transferred to the tape. This means that the table has lost some electrons so it
has become positively charged while the tape has gained electrons which made it
negatively charged. The process involved is usually referred to as charging up the material,
and in this particular activity the process used is charging by friction.
