MEASUREMENTS 1 - KCSE PHYSICS NOTES, AUDIOVISUALS, OBJECTIVES, QUESTIONS, SCHEMES OF WORK AND ANSWERS
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SPECIFIC OBJECTIVES
​By the end of the course, the learner should be able to:
TOPICS / SUB-TOPICS OUTLINE:
​MEASUREMENTS 1
​In order to measure we need to know or define the quantity to be measured and the units for measuring it. In 1971 a system known as the International System of Units (Systeme’ Internationale) and seven basic units were agreed upon as follows. Other quantities can be obtained from these basic quantities and are referred to as derived quantities.
Length
This is the measure of distance between two points in space. The SI unit for length is the metre (m). Therefore;
Area
This is the measure of the extent of a surface. It is a derived quantity of length. Its SI units are square metres (m2). Other units are cm2, km2 etc. Formulas are used to determine areas of regular bodies while for irregular bodies an approximation of area is used.
Volume
This is the amount of space occupied by matter. The SI units for volume is cubic metre (m3). Other sub-multiples are cm3, mm3 and l. Hence 1 m3 = 1,000,000 cm3 and 1l= 1,000 cm3. Volume can be measured using a measuring cylinder, eureka can, pipette, burette, volumetric flask, beaker, etc.
​Mass
​This is the quantity of matter contained in a substance. Matter is anything that occupies space and has weight. The SI unit for mass is the Kilogram (kg). Other sub-multiples used are grams (g), milligrams (mg) and tonnes (t). 1 kg = 1,000 g = 1,000,000 mg=100 tonnes. A beam balance is used to measure mass.
MEASUREMENT 1 QUESTIONS
TOPICAL QUESTIONSSCHEMES OF WORK
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INTRODUCTION TO PHYSICS - KCSE PHYSICS NOTES, AUDIOVISUALS, SCHEMES OF WORK, QUIZ AND ANSWERS13/1/2018 INTRODUCTION TO PHYSICS - KCSE PHYSICS NOTES, AUDIOVISUALS, SCHEMES OF WORK, QUIZ AND ANSWERS
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​INTRODUCTION TO PHYSICS
​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
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 bulk properties of matter as well as other phenomena observed.
Branches of physics
​Relation of physics to other subjects
​Since physics enables us to understand basic components of matter and their mutual interactions it forms the base of natural science. Biology and chemistry borrow from physics in explaining processes occurring in living things and organisms. Physics also provides techniques which are applied almost every area of pure and applied science i.e. meteorology, astronomy etc. Career opportunities in physics
​Basic laboratory safety rules
SPECIFIC OBJECTIVES:
By the end of the course, the learner should be able to:
TOPICS/SUBTOPICS OUTLINE:
INTRODUCTION TO PHYSICS QUESTIONS
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