Objectives: At The End Of This Chapter, The Student Should Be Able To:

Introduction Objectives At the end of this chapter, the student should be able to 1. Define physics and list it branches 2. Identify the fundamental physical quantities, their units and standards of measurement. 3. Explain how the length of an object can be measured with metre rule, vernier calipers and micrometer screw gauge. 4. Describe how the mass of an object can be measured with a chemical balance, beam or lever balance 5. List the instruments for measuring time 6. State the types of errors in measurement and describe how experimental error can be estimated. 7. Differentiate between scalar and vector quantities 8. Describe how vectors can be added, subtracted and resolved into components. 9. Determine the relationship between physical quantities using the method of dimensional analysis. 1.0 What Is Physics Physics is a science concerned with the study of matter in relation to energy. More specifically, it is the systematic study of the effect of changes in the surrounding physical conditions of a material object or system on its physical properties such as the dimensions, density, strength, ability to move, ability to pass electricity, ability to transmit and reflect light and so on. The surrounding physical conditions referred to