Work, Energy, and Power

Types of levers

Mechanical devices that can alter the direction or amount of a force are known as simple machines. It’s a tool that makes labour easier by reducing effort, speeding up motion, applying force at a convenient location, or lowering the risk of a dangerous operation. To multiply force, they employ leverage or mechanical advantage. There are few

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Class 11, NEET, Physics, Work-energy theorem, Work, Energy, and Power

Properties of Equipotential Surface

A basic definition of work is that when a force moves an object against an external force, the work done gets stored in the object as potential energy. This energy is released in the form of kinetic energy when the work’s external force is removed. For example, if a spring is pushed against itself, it

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Class 11, NEET, Physics, Work-energy theorem, Work, Energy, and Power

Power Factor

The ratio of working power (measured in kW) absorbed by the load to perceived power (measured in amperes,kVA) flowing through the circuit is described as the power factor (PF) of an AC electrical power system. The power factor is a dimensionless number that lies between 1 and-1 in the closed interval. 1 (actually known as

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Class 11, NEET, Physics, Work-energy theorem, Work, Energy, and Power

An Overview of What is Power

Work is related to force resulting in displacement. However, work holds no relation to the amount of time the force acted to cause the displacement. Sometimes the rate of work done is relatively quick compared to other times when it is slow. Note that the rate of work done is defined as the power.  Let

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Class 11, NEET, Physics, Work-energy theorem, Work, Energy, and Power

A Short Note on Work-Energy Theorem

Don’t miss: Unacademy Aarambh 2024 – Biggest Event for IIT JEE and NEET UG Work is the product of force and displacement. Energy is the capacity of doing work. Energy is defined as the product of power and time. Work and energy have the same units kg.m2/s2. The SI unit of work and energy is

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Class 11, NEET, Physics, Work-energy theorem, Work, Energy, and Power

A Quick Note on Work-Energy Theorem Derivation

The work-energy theorem derived understands energy in relation to force. In the work-energy theorem formula, the role of displacement is also crucial. The work-energy theorem is derived from several other aspects. These will be elaborated on in the following sections. However, knowing what energy is in physics is essential to understanding the work-energy theorem derivation. 

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Class 11, NEET, Physics, Work-energy theorem, Work, Energy, and Power