science definition for work

During high tide, when the level of water in the sea is high, sea-water flows into the reservoir of the barrage and turns the turbines. The turbines then turn the generator shaft to produce electricity. During low tide, the sea-water stored in the barrage reservoir is allowed to flow out into..

Work and Measurement of Work - Work is said to be done when a force acts on an object and the point of application of the force moves in the direction of force. Conditions to be satisfied for work to be done: Some force must act on the object The point of app..

Work is said to be done when a force acts on an object and the point of application of the force moves in the direction of force. Conditions to be satisfied for work to be done: Some force must act on the object The point of application of force must move in the direction of for..

When a force acts on an object and the object moves in the direction of force, we say that the force has done work on the objec..

Working of an Eye - The light coming from an object enters the eye through cornea and pupil. The eye lens converges these light rays to form a real, inverted and diminished image on the retina. The light sensitive cells of the retina gets activated with the incidence of light and generate..

The light coming from an object enters the eye through cornea and pupil. The eye lens converges these light rays to form a real, inverted and diminished image on the retina. The light sensitive cells of the retina gets activated with the incidence of light and generate electric signals. These elec..

Water flowing in high altitude rivers is stored in a man-made reservoir as shown in the figure. The kinetic energy of the flowing water is transformed into potential energy as the water level rises. This water is carried through pipes to the turbine situated at the bottom of the dam. The water ..

W = F x S SI unit of F is N and that of S is m [N = newto..

In many cases when we pull or push an object, we find that force and displacement are not in the same direction. Let a constant force F acting on a body produce a displacement S as shown in the figure. Let q be the angle between the direction of the force and displacemen..

Question 1 - Question: List out the conditions to be satisfied for work to be done. Answer: The conditions to be satisfied for work to be done are: Some force must act on the object The point of application of the force must mo..