surface kinetics

Kinetic Friction - If the force applied on the body is greater than its limiting friction, then the body begins to slide. This is when we forget about static friction and consider kinetic or dynamic friction. Kinetic or dynamic friction comes to play when there is a re..

Coefficient of kinetic friction is a similar constant which is a property of two surfaces with relative motion. Coefficient of kinetic friction can be defined as the ratio of kinetic friction to normal reaction. The coefficient of kinetic friction a..

Under normal conditions matter exists in three forms: solid liquid gas Matter is made up of atoms and molecules. These atoms in molecules are in a state of continuous motion. For example, molecules and atoms of a solid can have only vibrational motion, because they are held in their positions by st..

Evaporation is the process of conversion of a liquid into its vapours at room temperature. When a liquid is placed in an open vessel, it gradually evaporates and is converted into its vapours. The molecules of liquids escape from the surface inspite of strong intermolecular cohesive forc..

You must have noticed that when you have to slide a heavy box, it is easy to slide it once the box has started sliding. You may also have noticed that it is much more easy to roll a heavy drum than to slide it. This is because there are three types of friction. They are: the Static Friction the ..

It is the maximum value of static friction which comes into play when a body is just about to slide over the surface of another body. For an applied external force greater than the limiting friction, the body begins to move. Once motion has begun, static friction cannot be considered. A n..

Sunlight falling on the earth's surface equals 50,000 times the energy used each year by man. Almost all our energy comes from sun. The sun's energy is responsible for the tidal energy, heat energy stored in water, the chemical energy stored in plants, and the kinetic energy s..

Question: The P.E. of a body at a certain height is 200 J. The kinetic energy possessed by it when it just touches the surface of the earth is 1. > P.E. 2. < P.E. 3. = P.E. 4. cannot be known Answer: ..

The Solar Energy - Sunlight falling on the earth's surface equals 50,000 times the energy used each year by man. Almost all our energy comes from sun. The sun's nuclear energy is responsible for the tidal energy, heat energy stored in water, the chemical energy stored in plants, and the h..

Random motion of molecules and their collisions with a surface Random motion of molecules and diffusion of gases Applying the gas laws to relations between the pressure, temperature, and volume Standard temperature and pressure (STP) Convert between Celsius and Kelvin temperature scales..