Ch-06: Work & Energy

Ch-06: Work & Energy 

After studying this unit, the students will be able to:

• Define work and its SI unit.
• Calculate word done using equation: Work = force x distance moved in the direction of force
• Define energy, kinetic energy and potential energy. State unit of energy.
• List the different forms of energy with examples.
• Describe the processes by which energy is converted from one form to another.
• State mass energy equation E-mc2 and solve problems using it.
• Describe the process of electricity generation by drawing a block diagram of the process from fossil fuel input to electricity output.
• List the environmental issues associated with power generation.
• Explain by drawing energy flow diagrams through steady state systems such as filament lamp, power station, a vehicle travelling at a constant speed on a level road.
• Solve problems using mathematical relations learnt in this unit.

Key Points of Physics notes for 9th Class

Taleems portal provides students good notes in your study that helps you to quickly review the key points in the material that you have read and clear your concept is an important part of academic success in school / college. It is also an effective learning strategy that intentionally identifying the important content for your desire course and professional practice. This will also help you in improving your comprehension of material and retention:

• Notes equipped with qualitative and quantitative measures and skills for learning knowledge in better way
• All the contents will definitely help you to improve your skills to gain competitive edge
• Important Short and Long Question / Answers of exercises all are in easy words
• All the creative work, quizzes and other work mention in chapters also available with solutions
• MCQs short question and answers other then exercise of chapters are also available to enhance your study skills
• All notes available on Taleems Portal consist of Solved Review and Conceptual Questions
• You can view all these notes online or can download to your PC or Mobile to read again and again offline