VIDEO LESSON: Introduction to Physics – What is Physics?
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Science in our lives
Scientists are people trained in science and who practice the knowledge of science. We require people in industries to work as engineers, technicians, researchers, in hospitals as doctors, nurses, and technologists. Science gives us powerful ideas, instruments, and methods which affect us in our daily lives.
Scientific methods
- A laboratory is a building specifically designed for scientific work and may contain many pieces of apparatus and materials for use.
- A hypothesis is a scientific fact or statement that has not been proven or experimented.
- A law or principle is a scientific fact or statement that has been proven and experimented to be true for all conditions.
- A theorem is a fact or statement that is true and proven but applicable under specific conditions.
What is physics?
Physics is a Greek word meaning nature hence it deals with natural phenomena. Physics is therefore a science whose objective is the study of components of matter and their mutual interactions. Physics is also defined as the study of matter and its relation to energy. A physicist is able to explain the bulk properties of matter as well as other phenomena observed.