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