Learn what temperature is in science. Get the temperature definition, units, and examples and see how it differs from heat.

# Physics

Learn about photons in physics. Get the photon definition and fun facts about this interesting unit of light.

## What Is a Photon? Definition and Facts

Learn the difference between scalar and vector quantities in math and physics. Get the definitions and examples of each element.

## Scalar vs Vector – Definitions and Examples

Get the spontaneous fission definition and examples and learn how it differs from induced fission in physics.

## Spontaneous Fission Definition and Examples

Learn the difference between diamagnetic, paramagnetic, and ferromagnetic materials. Get examples of each and know how to identify them.

## Paramagnetic vs Diamagnetic vs Ferromagnetic – Magnetism

Learn about the three types of heat transfer: conduction, convection, and radiation. Get helpful examples.

## Heat Transfer – Conduction, Convection, Radiation

Learn what the law of conservation of energy is in physics and get examples in everyday life. See the formulas for the law.

## Law of Conservation of Energy

Learn about mass defect in chemistry and physics, including how it works, its formula, and how to calculate it.

## Mass Defect Definition and Formula

Learn about simple machines and how they work. See the 6 simple machines and learn about their uses in everyday life.