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).
Best Answer: As you increase the temperature the rate of reaction increases. As a rough approximation, for many reactions happening at around room temperature, the rate of reaction doubles for every 10Â°C rise in temperature.The more finely divided the solid is, the faster the reaction happens. catalyst is to help to increase the rate of chemical reaction by changing the energy pathway to a lower activation energy pathway. That is increasing the frequency of collisions between reactants. The higher the collision per unit the higher the rate of reaction.