Definition of Environmental Health. Environmental health is the science and practice of preventing human injury and illness and promoting well-being by identifying and evaluating environmental sources and hazardous agents and
It turns out that an objectâs kinetic energy increases as the square of its speed. A car moving 40 mph has four times as much kinetic energy as one moving 20 mph, while at 60 mph a car carries nine times as much kinetic energy as at 20 mph.Thus a modest increase in speed can cause a large increase in kinetic energy.These ideas are combined in the equation for kinetic energy. In words: Kinetic energy equals the mass of the moving object times the square of that objectâs speed (v 2).hus a modest increase in speed can cause a large increase in kinetic energy. These ideas are combined in the equation for kinetic energy. In words: Kinetic energy equals the mass of the moving object times the square of that objectâs speed (v 2).
Increasing Translational Kinetic Energy. Because the translational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's translational kinetic energy. Increases to mass and velocity, however, do not have the same impact.Because kinetic energy is proportional to the velocity squared, increases in velocity will have an exponentially greater effect on translational kinetic energy.ranslational Kinetic Energy. Translational kinetic energy is the energy of motion in a straight direction -- think of it as the energy of a car driving down the street.