Types of energy 2
Theme: YOU AND ENERGY
Basic science J.S.S.2 Second Term
WEEK 9
Types of energy 2
Performance Objectives
The student should be able to:
- Explain the molecular structures of solids, liquids and gases using kinetic energy
- Explain boiling and evaporation using kinetic theory
Content
Solids
A solid’s particles are packed closely together. The forces between the particles are strong enough that the particles cannot move freely; they can only vibrate. As a result, a solid has a stable, definite shape and a definite volume. Solids can only change shape under force, as when broken or cut.
In crystalline solids, particles are packed in a regularly ordered, repeating pattern. There are many different crystal structures, and the same substance can have more than one structure. For example, iron.... View More
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