Physical science grade 12 work energy and power notes pdf

Explore the many different forms energy can take sound, heat, light, chemical, and nuclear. Defining work, components of force and work, kinetic and potential energy, mechanical energy as well as the workenergy. Thus, calculate the energies and efficiencies of the setup. Dec 14, 2015 on this page you can read or download physical science study notes for grade 12 pdf in pdf format. Revision video physical sciences grade 12 work, energy and power. Work, energy and power class 8 science notes khullakitab. Two trucks, p and q, are travelling in opposite directions along a straight level road. An inclined plane is one of the six simple machines and input work and output energy. A textbook for high school students studying physics.

Energy is the capacity of a system to perform work. Siyavulas open physical sciences grade 12 textbook, chapter 5 on work, energy and power. Concepts of work, kinetic energy and potential energy are discussed. Physics notes class 11 chapter 6 work, energy and power. Physical science work energy and power department of basic. Physical sciences p2 chemistry gr 12 3 fs2017 terms, definitions, questions and answers how to use this document dear grade 12 learner 1. Grade 12 subject physical sciences week 1 topic frames of. In this lesson we revise the definition of work as well as revise the idea that power is the rate of transfer of energy. Study notes physical science grade 12 stanmore secondary. P w change in t where p power wattw, w work j, change in t.

In this lesson, we revise the definition of work as well as revis. It is the rate of work done or rate of energy transfer. Work kinetic energy theorem we can now replace any work due to conservative forces by potential energy terms, i. The subject matter of physical sciences is organised in six main knowledge areas. Class 11th physics 6 work energy and power notes shiksha. Where e be the energy produce, m be the mass of the object or material and c be the velocity of the. Work, energy and power thursday february 12th reading. Nuclear physics grade 12 physics notes khullakitab. In physics, however, the word work covers a definite and precise meaning. Apr 02, 2020 heres a collection of past physical sciences papers plus memos to help you prepare for the matric finals.

Physical sciences controlled test 1 nsc page 1 marks. To study physical sciences is challenging and hard work. Grade 11 physical science physical sciences break 1. A passenger on truck p will observe truck q travelling at a. Ac to the relativistic theory mass energy relation is given by einstein is mass can be converted into energy and energy can be converted into mass and viceversa and he give a relation emc 2. Self study guides for grades 10 12 national department of. The energy possessed by a body due to its position in a force field is called potential energy. In this winter school live show we take a close look at gr 12 physical sciences questions and answers relating to organic chemistry. Read your notes textbook, write summaries, calculate answers, and memorise. It can also be defined as the rate of change of energy. You must work your way through this study guide to improve your. Lesson objectives at the end of this lesson learners should know.

More power points and helpful sites we will use in class. Grade 12 ieb physics momentum impulse work energy and. The words work and power must be clearly defined as science concepts and it must be further clarified to the learners that these words do not. A scalar is a physical quantity with magnitude only. Nuclear energy changes a small amount of matter into a large supply of energy.

Using the readings given in the table, plot a graph on this page of. Siyavulas open physical sciences grade 12 textbook, chapter 5 on work, energy and power covering chapter summary. Remember, you have to do all the activities and carry out the practice exercises after each lesson. In this context, we are going to discuss the list of content on what is work, power and energy. The rewards are excitement, new discoveries and creative. These shortcodes will take you to video solutions of select exercises to show you stepbystep how to. Or here, e mech is the total mechanical energy of a system, equal to the sum of the kinetic and potential energy of the system. It is important to know whether a force is an conservative force or an nonconservative force in the system, because this is related to whether the force can change an objects total mechanical energy when it does. In physics, we can define energy as the capacity to do work. The best advice i can give to you is to budget your time properly, dont wait until the last minute the night before to get your work done. The solutions for all physical sciences grade 12 learners book contains content knowledge and background information to ensure that you acquire enough, and a bit more, knowledge than required by the curriculum and assessment policy statement caps. Siyavulas open physical sciences grade 12 textbook, chapter 5 on work, energy and power covering end of chapter exercises.

Ncert solutions for class 11 physics chapter 6 work energy and power are part of ncert solutions for class 11 physics. The concept of power is concerned with how rapidly energy is being transferred or transformed when work is done. Atkins, david c physical science documents and powerpoints. If you would like to join our lessons live, head over to the link below students with access to email can. Even though physics says that no work is done if the force does not move through a distance in the direction of the force, biology disagrees and that because. Physical sciences physics grade 12 textbook and workbook. When we talk about physics, the chapter of work, power, and energy is one of the most important chapters which involves concepts of mechanics. Use together with exam papers to improve your marks. Class 11 physics revision notes for chapter 6 work. Physics notes class 11 chapter 6 work, energy and power work when a force acts on an object and the object actually moves in the direction of force, then the work is said to be done by the force. Students will be able to gain an understanding of energy and its various forms in physical science apply basic math skills to calculate work. Sciences teaching material and study guidesnotes physical. Ex 8 what average force f is necessary to stop a 16 g bullet traveling at 260 ms as it penetrates into wood at a distance of 12 cm. Maths and physical science grade 10 and 12 home facebook.

Three class periods program description much of our success as an industrialized society stems from our ability to harness energy. The work done by a force is positive when the angle between force and displacement is acute, that is, the angle is less than 90 degree. Work done by the force is equal to the product of the force and the displacement of the object in the direction of force. Ncert solutions for class 11 physics chapter 6 work energy and. End of chapter exercises work, energy and power siyavula. Cbse class 11 physics notes chapter 6 work, power and energy. Firstly you must make sure that you study the terms and definitions provided for each topic. Siyavulas open physical sciences grade 12 textbook, chapter 5 on work, energy and power covering introduction. Introduction to work and energy video khan academy. We cover different topics in different chapters in different grades but that doesnt mean that they are not related.

Work is said to be done when the force is applied on a body and the body covers a certain distance. In this lesson we revise the work energy theorem as well as discuss the concept of power. Work, energy and power grade 11 physics notes khullakitab. They provide notes, examples, problemsolving exercises with solutions and examples of practical activities. Class 11 physics revision notes for chapter 6 work, energy. A guide to work, energy and power teaching approach work, energy and power is a topic which comprise of three concepts which are very closely related work and energy and power. Mathematics, mathematical literacy and physical sciences part 1.

In physics, power is associated with energy and has a precise meaning. To compare the work input when a car is pulled up an incline to the output energy that is put into the carearth system. Work and kinetic energy conservative and nonconservative forces work and potential energy conservation of energy calculus method for determining work power. Workenergy theorem work, energy and power siyavula. Write your name, date and grade on the answer sheet and on the graph paper. Dec 14, 2015 grade 11 physical science through the study and systematic application of the physical sciences. The solutions for all physical sciences grade 12 learners book, includes sufficient practical tasks to ensure that you develop the skills necessary to become a true scientist. Earth science optional final exam due exam day for extra 100 test grade.

Grade 12 physical science webinar week 5 and organic chemistry notes grade 12 physical science webinar week 6 and work, energy and power notes advantagelearn maths online. It will talk about electrical power and costing and conservation of electrical energy. For the physical sciences and mathematics papers, this. In this lesson on workenergy we focus on the following. You will also learn from this topic the advantages and disadvantages of hydroelectricity. Students will be able to gain an understanding of energy and its various forms in physical science apply knowledge of energy and its various forms college and career readiness standards. Truck p travels at 15 ms1 and truck q travels at 10 ms1. A work, energy and power and the work energy theorem a doppler effect a electric circuits internal resistance, resistors in series and parallel a electrodynamics a photoelectric effect a spectra grade 11.

In fact, it is very important to note that all of the different topics related to mechanics forces, mechanical energy, momentum, rectilinear motion actually form a consistent picture of the same physical system. Physical sciences grade 12 table of contents siyavula. In grade 10, you saw that mechanical energy was conserved in the absence of nonconservative forces. Physical science notes biology notes biology syllabus physical science syllabus unit 1. If you dont see any interesting for you, use our search form on bottom v. Class 11 physics revision notes for chapter 6 work, energy and. Physical science 8th graders, be the leaders i know you can be. Work is scalar quantity because it is defined as the dot product or scalar product two vectors force and displacement and the scalar product of two vectors gives the scalar quantity. Power is measured in joules per second js r o watts w and is worked out using the formula. Tutoring online learning and providing with important notes.

Somebody who has the capacity to work for 1416 hours a day is said to have a large. Physical science documents and powerpoint notes for class. The work done by a force is negative when the angle between force and displacement is obtuse, that is, greater than 90 degree and less than or equal to 180 degrees. Siyavulas open physical sciences grade 12 textbook, chapter 5 on work, energy and power covering exercises. Self study guides for grades 10 12 department of basic. A momentum and impulse a vertical projectile motion a newtons second law of motion expressed in terms of momentum. Health and physical education teaching material and study guidesnotes. Siyavulas open physical sciences grade 12 textbook, chapter 5 on work, energy and power covering power. Grade 12 ieb physics momentum impulse work energy and power. This document was compiled as an extra resource to help you to perform well in physical sciences. Physical sciences grade 12 physics northern cape department of education term ii work energy and power by g. Physical science grade 12 study guide free download pdf.