Form 6 Physics Notes FORM 6 PHYSICS: ENVIROMENTAL PHYSICS PART – 2 msomimaktaba, November 6, 2018February 13, 2019 TIDAL ENERGYTidal Power is the power of electricity generation achieved by capturing the energy contained in moving water mass due to tides. Two types of tidal energy can be extracted: Kinetic energy of currents between ebbing and surging tides and potential energy from the difference in height between high… Continue Reading
Form 6 Physics Notes FORM 6 PHYSICS: ENVIRONMENTAL PHYSICS PART – 1 msomimaktaba, November 6, 2018February 13, 2019 (i) Agriculture physics – Influence of solar radiation on plant growth. – Influence of wind, humidity, rainfall and air temperature on plant growth. – Soil environmental component which influence plant growth. (ii) Energy from the environment Photovoltaic energy Wind energy Geothermal energy Wave energy (iii) Geophysics (Earth quakes)… Continue Reading
Form 4 Physics Notes PHYSICS FORM FOUR TOPIC 7: GEOPHYSICS msomimaktaba, November 6, 2018February 13, 2019 Geophysics is a branch of science that deals with the physical, chemical, geological, astronomical and other characteristic properties of the earth.It deals with geological phenomena such as the temperature courages the change of weather(most of weather phenomenon occur in the troposphere).Clouds and rain are formed within this region. The… Continue Reading
Form 4 Physics Notes PHYSICS FORM FOUR TOPIC 6: ELEMENTARY ASTRONOMY msomimaktaba, November 6, 2018February 13, 2019 Introduction to Astronomy The Concept of Astronomy Explain the concept of astronomy Astronomy is a branch of science which deals with the study of origin,evolution, composition, distance and the motion of all bodies and scattered matter in the universe. Universe is the totality of space and time together with… Continue Reading
Form 4 Physics Notes PHYSICS FORM FOUR TOPIC 5: ELECTRONIC msomimaktaba, November 6, 2018February 13, 2019 Semi Conductors The Concept of Energy Band in Solids Explain the concept of energy bands in solids In solid-state physics, the electronic band structure (or simply band structure) of a solid describes those ranges of energy that an electron within the solid may have (called energy bands, allowed bands, or… Continue Reading
Form 4 Physics Notes PHYSICS FORM FOUR TOPIC 4: THERMIONIC EMISSION msomimaktaba, November 6, 2018February 13, 2019 Thermionic Emission Thermionic emission is the discharge of electrons from heated materials, widely used as a source of electrons in conventional electron tubes (e.g., television picture tubes) in the fields of electronics and communications. The phenomenon was first observed (1883) by Thomas A. Edison as a passage of electricity from… Continue Reading
Form 4 Physics Notes PHYSICS FORM FOUR TOPIC 3: RADIOACTIVITY msomimaktaba, November 6, 2018February 13, 2019 The Nucleus of an Atom The Structure of the Nucleus of an Atom Describe the structure of the nucleus of an atom The word atom is derived from the Greek word atom which means indivisible. The Greeks concluded that matter could be broken down into particles to small to be… Continue Reading
Form 4 Physics Notes PHYSICS FORM FOUR TOPIC 2: ELECTROMAGNETISM msomimaktaba, November 6, 2018February 13, 2019 Magnetic Fields due to a Current-carrying Conductor How Electric Current Produce a Magnetic Field Explain how electric current produces a magnetic field Electromagnetism is the effect produced by the interaction of an electric current with a magnetic field. The interaction can result in a force causing the conductor carrying the… Continue Reading
Form 4 Physics Notes PHYSICS FORM FOUR TOPIC 1: WAVESIntroduction to Waves msomimaktaba, November 6, 2018February 13, 2019 The Concept of Wave Explain the concept of a wave A wave is a disturbance that travels through a medium from one location to another location. Consider a slinky wave as an example of a wave. When the slinky is stretched from end to end and is held at rest,… Continue Reading
Form 3 Physics Notes PHYSICS FORM THREE TOPIC 9: THERMAL CURRENT ELECTRICITY msomimaktaba, November 6, 2018February 13, 2019 Electromotive force (emf) and potential difference (pd) The Concept of Electromotive Force (emf) and Potential Difference (PD) Explain the concept of electromotive force (emf) and potential difference (pd) Potential difference (P.d) is the difference in potential between two charged points of conductor. It is measured in volts with… Continue Reading
Form 3 Physics Notes PHYSICS FORM THREE TOPIC 8: VAPOUR AND HUMIDITY msomimaktaba, November 6, 2018February 13, 2019 Vapour The Process of Evaporation of Liquid Explain the process of evaporation of liquid Vapours These are molecules which escape into the atmosphere after liquids are heated. When a liquid is heated strongly then molecules tends to escape ( those molecules are called vapour). Most liquids evaporates at any temperature… Continue Reading
Form 3 Physics Notes PHYSICS FORM THREE TOPIC 7: MEASUREMENT OF THERMAL ENERGY msomimaktaba, November 6, 2018February 13, 2019 Heat Capacity Heat capacity is the amount of heat required to raise the temperature of an object or substance by one degree. The temperature change is the difference between the final temperature ( Tf) and the initial temperature ( Ti). The Factors which Determine Heat Quality of a Substance… Continue Reading
Form 3 Physics Notes PHYSICS FORM THREE PHYSICS FORM THREE TOPIC 6: TRANSFER OF THERMAL ENERGY msomimaktaba, November 6, 2018February 13, 2019 Conduction The Concept of Conduction of Heat Explain the concept of conduction of Heat Conduction is the transfer of heat energy through solids, for example, metals. Generally solid substances contain particles which are close together. Each particle vibrates at one position but cannot move to another position. Solid materials… Continue Reading
Form 3 Physics Notes PHYSICS FORM THREE TOPIC 5: THERMAL EXPANSION msomimaktaba, November 6, 2018February 13, 2019 Thermal Energy The Concept of Heat Explain the concept of heat Heat – Is the transfer of energy due to temperature differences. Temperature – Is the degree of hotness or coldness of a body. Or heat is a form of energy which raises the temperature of the substance…. Continue Reading
Form 3 Physics Notes PHYSICS FORM THREE TOPIC 4: OPTICAL INSTRUMENT msomimaktaba, November 6, 2018February 13, 2019 Simple Microscope The Structure of the Simple Microscope Describe the structure of the simple microscope A magnifying glass, an ordinary double convex lens with a short focal length, is a simple microscope. The reading lens and hand lens are instruments of this type. When an object is placed nearer… Continue Reading
Form 3 Physics Notes PHYSICS FORM THREE TOPIC 3: LIGHT msomimaktaba, November 6, 2018February 13, 2019 Light is aform of energy which controls the sense of vision. Reflection of Light from Curved Mirrors Difference between Concave and Convex Mirrors Distinguish between concave and convex mirrors Concave mirror is a spherical mirror whose reflecting surface is curved inwards. A Good example is the driving mirror of… Continue Reading