In the study of physics, energy is defined as the capacity to do work. That energy or force is measured in units called joules.
Work involves the application of force on an object that causes movement across a distance. For example, pushing a shopping cart involves exerting force to move it over the ground. The basic equation to illustrate this is:
The activity of work essentially involves the transfer of energy. In the previous example, energy is transferred from a person to the shopping cart.Learn More
Buffering capacity is defined as the number of moles of strong base or acid needed to change the pH of a liter of buffer solution by one unit. A general buffer capacity estimate is 40 percent of the total sum of the molarites of the conjugate base and acid.Full Answer >
Water-holding capacity is defined as the water retained between field capacity and wilting point. Field capacity is the saturated state of water in the soil that can drain freely due to the force of gravity. Wilting point is the soil water level after its absorption by a plant.Full Answer >
In physical science, time is defined as a measurement, or as what the clock face reads. With the advent of atomic timekeeping and the International System of Units, time is measured in units of seconds and held to the standards of the UTC time stamp.Full Answer >
Water has a high heat capacity because a lot of heat energy is required to break the hydrogen bonds found in a molecule of water. Because the majority of heat energy is concentrated on breaking the hydrogen bonds, the water molecule itself heats up after the bonds are broken.Full Answer >