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Formulas

Energy

Showing formulas of Energy

Physics
Subject
Mechanics
Sub Subject
Oscillations
Chapter
Showing 11 of 11 formulas Page 1 of 1

Kinetic Energy

Physics → Mechanics → Work Energy → Energy
$$KE = \frac{1}{2}mv^2$$
Energy due to motion: $$KE = \frac{1}{2}mv^2$$
📖 Physics 📚 Work Energy

Planck Equation

Physics → Quantum Mechanics → Photons → Energy
$$E = hf$$
Energy of photon
📖 Physics 📚 Photons

Capacitor Energy

Physics → Electricity → Capacitors → Energy
$$U = \frac{1}{2}CV^2$$
Energy stored in capacitor
📖 Physics 📚 Capacitors

Kinetic Energy of Rotation

Physics → Mechanics → Rotational Motion → Energy
$$K_{rot} = \frac{1}{2}I\omega^2$$
Energy of a rigid body due to its rotation about an axis.
📖 Physics 📚 Rotational Motion

Work-Energy Theorem (Rotational)

Physics → Mechanics → Rotation → Energy
$$W = \Delta K_{\text{rot}} = \frac{1}{2} I \omega_f^2 - \frac{1}{2} I \omega_i^2$$
The net work done by all torques acting on a rigid body is equal to the change in its rotational kinetic energy.
📖 Physics 📚 Rotation

Kinetic Energy (Relativistic)

Physics → Modern Physics → Relativity → Energy
$$K = (\gamma - 1)mc^2$$
Calculates kinetic energy when speeds approach the speed of light.
📖 Physics 📚 Relativity

Total Energy of Harmonic Oscillator

Physics → Mechanics → Oscillations → Energy
$$E = \frac{1}{2} k A^2$$
Total mechanical energy (sum of kinetic and potential) of an object in SHM.
📖 Physics 📚 Oscillations

Gravitational Potential Energy (Universal)

Physics → Mechanics → Gravitation → Energy
$$U = -\frac{G M m}{r}$$
Work done in bringing a mass from infinity to a point in a gravitational field.
📖 Physics 📚 Gravitation

Commercial Unit of Energy

Physics → Electricity → Electricity → Energy
$$1 kWh = 3.6 \times 10^6 J$$
Conversion between kilowatt-hour and Joules.
📖 Physics 📚 Electricity

Total Energy (Mechanical)

Physics → Mechanics → Work and Energy → Energy
$$E_{total} = E_k + E_p$$
Sum of kinetic and potential energy in a system.
📖 Physics 📚 Work and Energy

Potential Energy (Gravitational)

Physics → Mechanics → Work and Energy → Energy
$$E_p = mgh$$
Energy possessed by a body by virtue of its position above the ground.
📖 Physics 📚 Work and Energy
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