PHYSICS NOTES FOR FORM ONE We have: Notes 1 and Notes 2 Notes 1 To view the Notes, click the following links below: TOPIC 1 – INTRODUCTION TO PHYSICS TOPIC 2 – INTRODUCTION TO LABORATORY PRACTICE TOPIC 3 – MEASUREMENT TOPIC 4 – FORCE TOPIC 5 – ARCHIMEDES’ PRINCIPLE AND LAW OF FLOTATION TOPIC 6 – STRUCTURE AND PROPERTIES OF MATTER TOPIC 7 – PRESSURE TOPIC 8 – WORK, ENERGY AND POWER TOPIC 9 – LIGHT Notes 2 To view the Notes, click the following links below: 1. INTRODUCTION TO PHYSICS 2. INTRODUCTION TO LABORATORY PRACTICE…
Author: Msomi Bora
TOPIC 9: LIGHT Sources of Light The Concept of Light Explain the concept of light Light if a form of energy. It is a kind of energy which can stimulate our eyes and make us see things around us. Light can carry both energy and information. Light energy can travel in vacuum and at very high speed of about 300,000,000 m/s. By definition, light is the form of energy which stimulates the sensation of our vision. It is not possible to see objects without light. In order for our eyes to see objects, light must come from the objects to…
TOPIC 8: WORK, ENERGY AND POWER Work The Concept of Work Explain the concept of work Work is said to be done only if the application of a force makes a body move from one point to another. If a person pushes a wall and without making it move, even if the person sweat and physically become tired, he would not have done any work. But if the person pushes a trolley and the trolley moves then work is said to be done. Work is defined as the product of the force applied and the distance moved in the direction…
TOPIC 7: PRESSURE Concept of Pressure The Concept of Pressure Explain the concept of pressure Pressure is defined as the force per unit area. Mathematically, the force discussed here is the force which acts normally or perpendicularly to a unit surface area. That is to say, pressure depends on the force applied and the surface area. The S.I Unit of Pressure State the S.I unit of pressure The SI unit of Pressure is Newton per square metre (N/m2). This unit is usually referred to as the Pascal (Pa). However, due to the fact that measurement of pressure may result to…
TOPIC 6: STRUCTURE AND PROPERTIES OF MATTER Structure of Matter State of matter is defined in terms of the phase transitions which indicate the change in structure and properties. Solids, liquids and gases all are made up of microscopic particles. The behavior of all these particles also varies in three phases. The Concept of Matter Explain the concept of matter Matter is anything that has mass and occupies space. In other words, matter is anything that has weight and volume. For example, stone is considered a matter because it has mass and it occupies space. Therefore, everything we see around…
TOPIC 5: ARCHIMEDES’ PRINCIPLE AND LAW OF FLOTATION Archimedes’ Principle Archimedes’ principle indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. The Concept of Upthrust Explain the concept of upthrust If a heavy object is lifted while immersed in water, it may be raised more easily than when outside the water. This is due to the reason that when anything is placed in liquid, it receives an upward force called upthrust. A body appears to have…
TOPIC 4: FORCE A force is an interaction that causes a change. In mechanics, a force is an interaction that causes a change in velocity (an interaction that causes acceleration). Concept of Force The Concept of Force Explain the concept of force For better understanding of this concept, let’s ask ourselves the following question: What causes/makes a body at rest to move? What causes the same body in motion to stop? The answers to these questions, is of course that a force is required to do so. Here, an applied force to a body can cause the body at rest…
TOPIC 3: MEASUREMENT Concepts of Measurement The Concepts of Measurement Explain the concepts of measurement Measurement is the process of assigning numbers to observations or events. It is the process in which the amount of values, data or quantity is obtained. Measurement is an important activity in physics. During measurement, a scientist follows the proper procedures uses proper instruments so as to get exact amounts. Importance of Measurement in Real Life State the importance of measurement in real life Measurement is among very important practices in several fields such as engineering, medicine, architecture, teaching, communication, transport and many more. It plays…
TOPIC 2: INTRODUCTION TO LABORATORY PRACTICE A Laboratory is a room or a building designed specifically for carrying out experiments. Laboratory Rules and Safety Guidelines Rules in a Physics Laboratory State rules in physics laboratory While working in the lab, individuals are advised to adhere to specific lab rules to ensure their safety, that of other people working in the lab and the safety of the apparatus and chemicals stored in the lab. Rules in the physics lab You should only enter the lab in the presence of a lab attendant. Keep all exits and entrances to and from the…
TOPIC 1: INTRODUCTION TO PHYSICS Physics is often described as the study of matter and energy. It is concerned with how matter and energy relate to each other, and how they affect each other over time and through space. Physicists ask the fundamental questions how did the universe begin? how and of what is it made? how does it change? what rules govern its behavior? Concepts of Physics The Concepts of Physics Explain the concepts of physics Physics is one of the branches of science which explains about how things behave or occur in our environment. For example, physics explains…
