# Physics

Physics studies features of the universe, ranging from natural to manmade phenomena. With Wolfram|Alpha, you can explore data about phenomena in the areas of quantum mechanics, nuclear and particle physics, thermodynamics and Newtonian mechanics. Wolfram|Alpha also knows a variety of physical formulas and constants. With all of this built-in data and interactive calculators, it is easy to get answers to your physics questions, either for homework or general curiosity.

Mechanics

Explore the physical laws that describe the behavior of one or more bodies under a system of forces.

#### Do a gravitation calculation:

もっと表示
Statistical Physics

Explore the motion of fluids using statistical methods.

#### Compute entropy with the Sackur–Tetrode equation:

もっと表示
Optics

Study the properties and behaviors of light.

#### Use the Rydberg formula to compute spectral lines:

もっと表示
Quantum Physics

Explore quantum phenomena, such as scattering and quantum states.

#### Look up atomic spectra:

もっと表示
Physical Constants

Explore details, values and definitions for various physical constants.

#### Do computations involving constants:

もっと表示
Fluid Mechanics

Examine the behavior of fluid systems and objects moving through them.

#### Compute fluid flow around an object:

もっと表示
Oscillations & Waves

Explore oscillatory motion, from pendulums to electromagnetic waves.

#### Compute a Doppler shift:

もっと表示
Thermodynamics

Explore heat, energy and entropy and how they relate to thermodynamic systems.

#### Analyze an Atkinson cycle:

もっと表示
Relativity

Explore Einstein's theories of special and general relativity and how they relate to gravity, time and space.

#### Determine gravitational time dilation near massive objects:

もっと表示
Particle Physics

Get information about particles and their interactions.

#### Compare the values of a property for a class of particles:

もっと表示
Physical Principles

Explore physical laws, principles and effects.

もっと表示

### 理解を深める

Step-by-Step Solutions for Physics

### 関連する例

• Engineering
• Mathematics
• Nobel Prize
• Electricity & Magnetism

Explore the physics of the electromagnetic force.

#### Do a Coulomb's law computation:

もっと表示
Nuclear Physics

Explore aspects of nuclear physics, including radiation and nuclear power.

#### Compute characteristics of Cerenkov radiation:

もっと表示
Astrophysics

Explore the nature of celestial objects, including black holes, stars and planets.

#### Compute properties of a black hole:

もっと表示
Physical Effects

Get information on physical effects and compare them.

もっと表示