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00:00hi kids today we will learn what is potential energy and kinetic energy so
00:09let's get started
00:13first let's see what is potential energy it is the energy which is stored in an
00:21object or body due to its position or configuration of parts
00:28let's understand it with the help of examples which ball will come down with
00:36more energy blue ball or a red ball blue ball will come down with more energy
00:45because the blue ball had more energy due to more height but which energy is
00:52it it is potential energy energy possessed by an object due to its
01:00position is potential energy the higher the position of an object the more the
01:08potential energy let's look at another example a rock or stone lying on the top
01:16of a hill has potential energy due to its higher position from the ground when
01:23this stone is pushed off the hill it falls down to the ground due to
01:28potential energy
01:32water stored up in the dams or tanks on the top of the buildings have a lot of
01:39potential energy due to height here is one more example if we cut the rope the
01:46weight will come down with great energy because it has a lot of potential energy
01:53due to its position that is its height but wait to potential energy of a body
02:02depends upon the mass of the body as well as its position from the ground
02:08level the heavier the object the more the potential energy the higher the
02:16object the more the potential energy take two different weights now throw each
02:23one by one
02:27which weight had more energy yes this one as this has more weight the heavier
02:37the weight more the energy it will have now let's take another example this way
02:45has a lot of potential energy due to its weight as well as its position
02:55here is another example it's a catapult and when the rubber of the catapult is
03:03stretched it stores a lot of potential energy and it's because of its stretch
03:11position the more you stretch the more potential energy it will store and it is
03:18because of this potential energy stored in it when you release the stretch
03:23rubber it throws a stone with a great energy bow and arrow bow and arrow also
03:34works on the same principle the arrow is held on the stretch string of the bow
03:40and due to this stretch position a lot of potential energy is there the more it
03:47is stretched the more potential energy it will store and with more force the
03:55arrow will go ahead in both these examples it is first a muscular energy
04:02which is being converted to the potential energy and then the potential
04:08energy is being converted to the kinetic energy now let's see another example why
04:16does the water released from a dam has huge energy to produce electricity it is
04:23because the water is stored at big heights and also the quantity of water
04:30has too much weight so because of both height and weight when the water from
04:36the dam is released from a great height it has enormous potential energy
04:46this potential energy of the water is converted to kinetic energy and gives it
04:54a great speed and this kinetic energy is used to move the turbines
05:04which in turn powers the generators that produce electricity so kids today we
05:14learned what is potential energy we will learn about kinetic energy in our
05:21next assignment now you may go ahead and take a quiz to learn more bye-bye