The difference between all of these classes of levers is what component of the lever is in the center. As you know, a lever has 3 parts...

The moment of a force is the tendency of that force to cause rotational acceleration rather than linear acceleration. The moment/torque...

Thermal energy, as discussed in a previous post, is the kinetic energy possessed by the particles of a substance. The transfer of thermal...

Pressure, P is the force applied per unit area of a surface. For example, standing on one foot places more pressure on that foot than...

The specific latent heat (l) of a substance is a measure of the heat energy (Q or Eʜ) per unit mass (m) released or absorbed during...

Heat Capacity, C, is defined as how much heat must be added to a substance to raise its temperature by 1℃ or 1K.

A temperature increase of 1 degree Celsius is the same as a temperature increase of 1 Kelvin. The main purpose of the Kelvin scale...

Thermal expansion is a fractional change in size (volume) of a material in response to a change in temperature.

Temperature is a measure of the tendency of an object to spontaneously give up (lose) thermal energy to its surroundings.

In the 18th century, a theory of thermodynamics (now obsolete) called the caloric theory of heat was developed.