Mechanical Waves are waves which propagate through a material medium (solid, liquid, or gas) at a wave speed which depends on the elastic and inertial properties of that medium. There are two basic types of wave motion for mechanical waves: longitudinal waves and transverse waves. The animations below demonstrate both types of wave and illustrate the difference between the motion of the wave and the motion of the particles in the medium through which the wave is travelling.
If the temperature of the air is said to be at absolute zero, one might conclude that a. the molecules contain a minimum amount of energy. b. the motion of the molecules is at a maximum. c. the molecules are occupying a large volume. the molecules contain a minimum amount of energy.
Relative Humidity. The amount of water vapour air can hold depends on temperature. Warm air can hold more water vapour than cold air because it is less dense, so has more capacity. Relative Humidity is the percentage of water vapour in the air, based on how much it can hold given its current temperature.When Relative Humidity reaches 100% the air is saturated with water vapour and cannot hold any more, this is know as the Dew Point.Dew points are measured by temperature, so the Dew Point of 15Â°C air with 25% humidity is 5Â°C.hen Relative Humidity reaches 100% the air is saturated with water vapour and cannot hold any more, this is know as the Dew Point. Dew points are measured by temperature, so the Dew Point of 15Â°C air with 25% humidity is 5Â°C.