Fizika

Acceleration

The rate of change of velocity of an object with respect to time.

Amplitude

The maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position.

Angular Momentum

The rotational analog of linear momentum, defined as the product of the moment of inertia and angular velocity.

Buoyancy

The upward force exerted by a fluid that opposes the weight of an immersed object.

Capacitance

The ability of a system to store an electric charge per unit of electric potential difference.

Conduction

The process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or electrical potential.

Diffraction

The process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge.

Doppler Effect

An increase or decrease in the frequency of sound, light, or other waves as the source and observer move toward or away from each other.

Electromagnetic Spectrum

The range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies.

Entropy

A thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder.

Force

An interaction that, when unopposed, will change the motion of an object (mass times acceleration).

Frequency

The number of occurrences of a repeating event per unit of time.

Gravity

The universal force of attraction acting between all matter.

Inertia

The property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.

Kinetic Energy

The energy that an object possesses due to its motion, defined as $E_k = \frac{1}{2}mv^2$.

Momentum

The product of the mass and velocity of an object.

Newton's Laws of Motion

Three physical laws that together laid the foundation for classical mechanics.

Optical Refraction

The change in direction of a wave passing from one medium to another caused by its change in speed.

Potential Energy

The energy held by an object because of its position relative to other objects, stresses within itself, or its electric charge.

Quantum Mechanics

The branch of physics that deals with the physical properties of nature at the scale of atoms and subatomic particles.

Relativity

A theory developed by Albert Einstein, encompassing both special and general relativity, concerning the relationship between space, time, and gravity.

Resistance

A measure of the opposition to current flow in an electrical circuit.

Scalar Field

A function that assigns a single scalar value to every point in a space.

Superposition

The principle that when two or more waves overlap in space, the resulting disturbance is the sum of the disturbances of the individual waves.

Thermodynamics

The branch of physics that deals with heat, work, and temperature, and their relation to energy, radiation, and physical properties of matter.

Torque

A twisting force that tends to cause rotation.

Velocity

The rate of change of an object's position with respect to a frame of reference and time.

Wavelength

The distance between successive crests of a wave.

Work

The measure of energy transfer that occurs when an object is moved over a distance by an external force.