New 2020 Form 4 Chemistry Topic 1 Revised
Institution: Secondary
Course: Education
Content Category: Form 4 Chemistry Topical Questions and Answers
Posted By: mikeGreen
Document Type: PDF
Number of Pages: 44
Price: KES 90
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Summary
Download the new revision on chemistry form 4 topic Energy, the whole topic's notes are provided including the topical questions and answers provided. The work includes all drawings and diagrams from the topic and the answers provided are explained for easy understanding and mastery of the content.
FORM 4 TOPIC 1 ENERGY
Q&A
1.Introduction to Energy changes
Energy is the capacity to do work. There are many/various forms of energy like heat, electric, mechanical, and/ or chemical energy. There are two types of energy:
(i)Kinetic Energy (KE); the energy in motion.
(ii)Potential Energy (PE); the stored/internal energy.
Energy like matter, is neither created nor destroyed but can be transformed /changed from one form to the other/ is inter convertible. This is the principle of conservation of energy. e.g. Electrical energy into heat through a filament in bulb.
Chemical and physical processes take place with absorption or evolution/production of energy mainly in form of heat
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