Explain the law of conservation of energy briefly and also explain its statement in detail with examples.
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Answer:
LAW OF CONSERVATION OF ENERGY:
In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. ... For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes
Answer:
the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time.
OR
The law of conservation of energy is a law of science that states that energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another
The law of conservation of energy can be seen in these everyday examples of energy transference:
Water can produce electricity. Water falls from the sky, converting potential energy to kinetic energy. This energy is then used to rotate the turbine of a generator to produce electricity. In this process, the potential energy of water in a dam can be turned into kinetic energy which can then become electric energy.
When playing pool, the cue ball is shot at a stationary 8 ball. The cue ball has energy. When the cue ball hits the 8 ball, the energy transfers from the cue ball to the 8 ball, sending the 8 ball into motion. The cue ball loses energy because the energy it had has been transferred to the 8 ball, so the cue ball slows down.
Kelly ran across the room and bumped into her brother, pushing him to the floor. The kinetic energy she possessed because of her movement was transferred to her brother, causing him to move.
When a moving car hits a parked car and causes the parked car to move, energy is transferred from the moving car to the parked car.
When playing the lawn game bocce ball, a small ball is thrown with the intention of hitting larger balls and causing them to move. When a larger ball moves because it was hit by the small ball, energy is transferred from the small ball to the larger one.
When you push a book across the table, the energy from your moving arm is transferred from your body to the book, causing the book to move.
A cat sitting on the highest branch of a tree has what is known as potential energy. If he falls off the branch and falls to the ground, his potential energy is now being converted into kinetic energy.
When kicking a football that is sitting on the ground, energy is transferred from the kicker's body to the ball, setting it in motion.