external and internal forces for change

Internal Energy and Change in Internal Energy - Since chemical changes are always accompanied by energy changes, it indicates that reactants and products must be having certain amounts of energy. A fixed quantity of any substance is associated with ..

Since chemical changes are always accompanied by energy changes, it indicates that reactants and products must be having certain amounts of energy. A fixed quantity of any substance is associated with a definite amount of energy, which depends upon chemical nature of the s..

Is the push/pull which changes or tends to change the state of rest or uniform motion in a straight line. It is a vector quantity, i.e., it has both magnitude and directio..

A force is often defined as a "push" or a "pull". There is nothing untrue with this statement, but does not really tell you much about a force. Instead of defining force, it substitutes an antonym. A physicist prefers to define a force in terms of what it doe..

A vegetable vendor applies force to push the cart, a driver applies force either to stop the car or to change the speed or direction of motion and a football player kicks the ball to set it in motion. In all the above examples, the force applied on a body can..

Pheretima posthuma is a common species of earthworm found living in burrows made in moist soil. It is nocturnal in habit. It has an elongated, cylindrical body which is metamerically segmented. Anteriorly the first segment is called peristomium. It encloses a mouth. Overhanging the mouth is a flesh..

When current is drawn from a cell, ions move within the cell from one electrode to another. The resistance offered by the electrodes and electrolytes to these, measure the internal resistance of the cell.The internal resistance of a cell depends on the distance between the plate..

Internal Energy - Internal energy is one of the most important concepts in thermodynamics. Energy changes in a body sliding with friction. Warming a body increases its internal energy and cooling the body decreases its internal energy. However, what..

A liquid may be made to boil at any desired temperature by changing the external pressure. For example, a liquid may be made to boil at higher temperature by increasing the pressure on its surface, as is done in a pressure cooker. It may be made to boil at a lower temperature t..

Force is the external agent that changes the state of rest or uniform motion of a body along a straight lin..