CLASS 5 SCI CH 11 FORCE AND ENERGY PART 2

**The Various Forms of Energy**

We eat food to get energy for work and play. Food particles have chemical energy stored in them, which means mainly we get energy from food. The chemical energy stored in food provides some energy that is stored inside our body as potential energy because it's stored inside a body. This chemical energy helps our muscles apply force to do work.

**Forms of Energy**

There are different forms of energy, and these include potential energy, kinetic energy, and chemical energy. Potential energy is the stored energy that has the potential to be converted into other forms of energy. Kinetic energy, on the other hand, is the energy of motion. Chemical energy is the energy that is stored in the bonds of atoms and molecules.

**Thermal Energy**

All the above forms of energy are related to thermal or heat energy. Thermal energy is the energy of heat. It is a form of energy that is associated with the temperature of an object. The Sun is considered as a natural source of heat and light, and it provides us with thermal energy. We use this thermal energy for various purposes, such as cooking and heating our homes.

**Measuring Thermal Energy**

We can measure the temperature of an object using a thermometer, which is an instrument that measures the temperature of an object. Thermometers are used to determine whether an object is at a boiling point or burning with fuel. By measuring the temperature of an object, we can determine its thermal energy.

**Electrical Energy**

Another form of energy is electrical energy. Electrical appliances, such as fans and lights, require electricity to function. Electricity carries a type of energy called electrical energy, which makes these appliances work. Electrical wires carry this type of energy from one place to another.

**Electrochemical Energy**

Electrochemical energy is the energy that is stored in batteries. Batteries store energy in chemical reactions, which involve the transfer of electrons between two electrodes. This energy can be used to power devices, such as mobile phones and cars. The battery stores energy in a chemical way, which involves the combination of chemicals.

**Light Energy**

Light energy is another form of energy that we obtain from natural sources. The Sun is a natural source of light energy, which it transmits as both heat and light. We can obtain light energy from artificial sources, such as electrical bulbs, LEDs, lamps, and candles.

**Sound Energy**

Sound energy is the energy associated with sound waves. Sound waves are created when objects vibrate, and these vibrations transmit energy through the air. We can listen to music using radios, television, musical instruments, and mobile phones, which all require sound energy to function.

**Solar Energy**

Solar energy is the energy that we obtain from the Sun. The Sun transmits energy as both heat and light, and this energy can be converted into different forms, such as electrical energy and thermal energy. Solar power plants use solar energy to generate electricity, which is then used to power homes and industries.

**Wind Energy**

Wind energy is another natural source of energy that we obtain from the wind. When wind blows, it causes objects to move, creating a motion known as kinetic energy. We can harness this energy using turbines, which convert the wind energy into electrical energy. Wind farms use this technology to generate electricity, providing an alternative source of power.

**Abundance of Energy**

All these forms of energy are abundant and are present in nature. They can be harnessed and utilized to meet our energy needs. The abundance of energy is a fundamental aspect of our lives, and it plays a crucial role in powering our homes, industries, and transportation systems.

"WEBVTTKind: captionsLanguage: enoki students in second part will discuss about the energy means what is the energy different types of energy and different forms of energy okay so firstly what is our energy and our tree is the capability or a capacity to doing any work okay so now a one word arises that work means what is a work then we applied a force on any object it displaces it displaces with some distance okay that it's had to be a work done here we can take one example as you seen in this picture the boy is seen in the Addison picture has moved the move from one point to another he is said to have done work here means a boy move a book from one place to another place means it changes the position of a book from one place to another place means it displaces it with some distance then it's said to be doing the work okay now energy the capability or ability of body to do work is said to be energy of johan worker T&T whose vocal Nikoli hamari do capability air yabba-doo marie ability a humble work kar sakte hum become curseth they're the most calm cooker Nicola hamari boy de cocao hie energy okay now energy is present in different forms as we discussed in this chapter here you can see on a dime dramatically firstly energy types the three types of energies first one is potential energy kinetic energy and chemical energy next one different forms of energy so different forms of energy here we will discuss about a sound energy he thermal energy or heat energy electromagnetic light energy wind energy electrical energy an electro chemical energy so firstly what is the potential energy so with example if football is just kept on the ground of a basketball coat our water is just kept or stored in a dam or an overhead tank they all are in a stationary position means they cannot move their move from its original position because means they cannot move from one place to another place they are in a stationary position even then they possesses some energy means Vande are in the stationary position they possess is some energy inside them ok so that energy is known as a that stored energy inside them is known as a potential energy next one is kinetic energy then a bull body is in a motion potential energy is related with the stationary condition okay means a stationary position but a kinetic energy is opposite to the potential energy it related with the motion means when the body changes its position from one one place to another place it possesses some energy that is known as I cannot take energy okay for example when a car moves it possesses kinetic energy by its movement because it travels from one place to another place next one is force applied on a stationary basketball also makes its move the ball has kinetic energy because of being in motion means when we playing with the basketball it possesses a can I take energy but when we kept a basketball in a stationary position it possesses a potential energy okay so that is the main difference between potential and kinetic energy next one is chemical energy so chemical energy we eat food to get energy for work and play food particles have chemical energy stored in them means mainly we get energy from food okay then we eat of food particles it provides some chemical energy that stored in them okay and that chemical energy is a particular form of potential energy because it's stored inside of a body so chemical energy of the food helps muscles to apply force to do work means through chemical energy of omaree muscles Cuccia provide career omaree muscle scoobo force provide career come car Nikoli ticket push no couch come carnegie leo mary body co force provide carry amara body co energy provide carry a ticket for example the girl runs due to kinetic energy here a girls run means a motion is created so that is known as a means the hair up it possesses she possesses a kinetic energy while running but when he eating the food it is in she is in rest position so it possesses a potential energy next one is thermal and energy so these are now I started are different forms of energy different types of energies are potential energy kinetic energy and chemical energy whereas different forms of an address are thermal energy so it is started from a thermal energy all the above are said to leaves thermal or heat energy means here are some examples for example shining sun burning fuel boiling water mainly a heat is related with the temperature okay the Sun is considered as a natural source of heat and light on the earth the heat energy is used for cooking or many or many household works okay inside the kitchen we Jews are burning fuels coals patrols to burn or to cook okay mainly in a term in a heat energy are atala thermal energy we use a one instrument to measure the temperature that is known as a thermometer means if we want to measure the temperature of a object that is at a boiling point or a burning with the fuel then then we use a instrument known as a thermometer next one is electrical energy so all of the appliances electrical appliances run inside our houses for example electrical fans LCDs here heater okay so they all run with the help of electricity okay so there is another form of energy called electrical energy that makes electrical appliances to do work electricity carries a type of energy called electrical energy means all alike electrical appliances are run with the help of electricity so electricity carries carries with us our electrical energy so electrical wires carry bit that type of energy which helps to Rhonda all electrical appliances next one is electrochemical energy so we all uses our mobile phones okay and we can charge the mobile phones so that my battery that is inserted inside the mobile phones is the example of fun electrochemical energy because it's towards and this it's it's towards a electrical in electrical energy in the chemical way okay so a battery stores energy in a chemical way since electrical energy also gets involved in a battery we can say that battery store energy called electrochemical energy means it is a combination of electrons pearl plus chemicals okay so that is Naza electrochemical energy next one is light energy so the main natural source of light energy is Sun it transmitted energy as a heat energy as well as light energy okay so light energy we can obtain from electrical bulbs LEDs lamps tube lights and candles next one is source sound energy so here we can take the example of some sources which provide us some sounds ok mean means we can listen a music with the help of a radios television music musical instruments with the help of a mobile phones so all the instruments that provide some sound that known means that is that given a sound to us with the help of a sound energy next one is solar energy solar is also related with the Sun energy means the energy that we get from the Sun is called solar energy and that energy obtained from the Sun is it converted into different forms for example in solar or solar power so that solar energy further converted into a electrical energy also okay it is used to provide heat light hot water and electricity next one is wind energy as the name indicates there that the energy that we get from a wing okay so firstly what is of men moving air is known as I've been wind causes things to move we all know that being the causes things to move so when means and turbines use wind energy to move nowadays people are using wind energy to produce electricity in wind farms means here we can convert a wind energy into electrical and in electrical energy and we can perform a various task with the help of wind energy so these are the natural sources means these are the natural energies that we get from a nature okay and these are in present in a very abundance okay abundance means yujo energy so tal and then they took me home a provide kiaa tikaa for example bring solar light and a tree okay our usual at the a geek Abubakar Thani was a tea is l'homme in energy SCADA prefer Carnot ie as compared to the artificial energies okay so Roger this is all about of a chapter thank you have a nice dayoki students in second part will discuss about the energy means what is the energy different types of energy and different forms of energy okay so firstly what is our energy and our tree is the capability or a capacity to doing any work okay so now a one word arises that work means what is a work then we applied a force on any object it displaces it displaces with some distance okay that it's had to be a work done here we can take one example as you seen in this picture the boy is seen in the Addison picture has moved the move from one point to another he is said to have done work here means a boy move a book from one place to another place means it changes the position of a book from one place to another place means it displaces it with some distance then it's said to be doing the work okay now energy the capability or ability of body to do work is said to be energy of johan worker T&T whose vocal Nikoli hamari do capability air yabba-doo marie ability a humble work kar sakte hum become curseth they're the most calm cooker Nicola hamari boy de cocao hie energy okay now energy is present in different forms as we discussed in this chapter here you can see on a dime dramatically firstly energy types the three types of energies first one is potential energy kinetic energy and chemical energy next one different forms of energy so different forms of energy here we will discuss about a sound energy he thermal energy or heat energy electromagnetic light energy wind energy electrical energy an electro chemical energy so firstly what is the potential energy so with example if football is just kept on the ground of a basketball coat our water is just kept or stored in a dam or an overhead tank they all are in a stationary position means they cannot move their move from its original position because means they cannot move from one place to another place they are in a stationary position even then they possesses some energy means Vande are in the stationary position they possess is some energy inside them ok so that energy is known as a that stored energy inside them is known as a potential energy next one is kinetic energy then a bull body is in a motion potential energy is related with the stationary condition okay means a stationary position but a kinetic energy is opposite to the potential energy it related with the motion means when the body changes its position from one one place to another place it possesses some energy that is known as I cannot take energy okay for example when a car moves it possesses kinetic energy by its movement because it travels from one place to another place next one is force applied on a stationary basketball also makes its move the ball has kinetic energy because of being in motion means when we playing with the basketball it possesses a can I take energy but when we kept a basketball in a stationary position it possesses a potential energy okay so that is the main difference between potential and kinetic energy next one is chemical energy so chemical energy we eat food to get energy for work and play food particles have chemical energy stored in them means mainly we get energy from food okay then we eat of food particles it provides some chemical energy that stored in them okay and that chemical energy is a particular form of potential energy because it's stored inside of a body so chemical energy of the food helps muscles to apply force to do work means through chemical energy of omaree muscles Cuccia provide career omaree muscle scoobo force provide career come car Nikoli ticket push no couch come carnegie leo mary body co force provide carry amara body co energy provide carry a ticket for example the girl runs due to kinetic energy here a girls run means a motion is created so that is known as a means the hair up it possesses she possesses a kinetic energy while running but when he eating the food it is in she is in rest position so it possesses a potential energy next one is thermal and energy so these are now I started are different forms of energy different types of energies are potential energy kinetic energy and chemical energy whereas different forms of an address are thermal energy so it is started from a thermal energy all the above are said to leaves thermal or heat energy means here are some examples for example shining sun burning fuel boiling water mainly a heat is related with the temperature okay the Sun is considered as a natural source of heat and light on the earth the heat energy is used for cooking or many or many household works okay inside the kitchen we Jews are burning fuels coals patrols to burn or to cook okay mainly in a term in a heat energy are atala thermal energy we use a one instrument to measure the temperature that is known as a thermometer means if we want to measure the temperature of a object that is at a boiling point or a burning with the fuel then then we use a instrument known as a thermometer next one is electrical energy so all of the appliances electrical appliances run inside our houses for example electrical fans LCDs here heater okay so they all run with the help of electricity okay so there is another form of energy called electrical energy that makes electrical appliances to do work electricity carries a type of energy called electrical energy means all alike electrical appliances are run with the help of electricity so electricity carries carries with us our electrical energy so electrical wires carry bit that type of energy which helps to Rhonda all electrical appliances next one is electrochemical energy so we all uses our mobile phones okay and we can charge the mobile phones so that my battery that is inserted inside the mobile phones is the example of fun electrochemical energy because it's towards and this it's it's towards a electrical in electrical energy in the chemical way okay so a battery stores energy in a chemical way since electrical energy also gets involved in a battery we can say that battery store energy called electrochemical energy means it is a combination of electrons pearl plus chemicals okay so that is Naza electrochemical energy next one is light energy so the main natural source of light energy is Sun it transmitted energy as a heat energy as well as light energy okay so light energy we can obtain from electrical bulbs LEDs lamps tube lights and candles next one is source sound energy so here we can take the example of some sources which provide us some sounds ok mean means we can listen a music with the help of a radios television music musical instruments with the help of a mobile phones so all the instruments that provide some sound that known means that is that given a sound to us with the help of a sound energy next one is solar energy solar is also related with the Sun energy means the energy that we get from the Sun is called solar energy and that energy obtained from the Sun is it converted into different forms for example in solar or solar power so that solar energy further converted into a electrical energy also okay it is used to provide heat light hot water and electricity next one is wind energy as the name indicates there that the energy that we get from a wing okay so firstly what is of men moving air is known as I've been wind causes things to move we all know that being the causes things to move so when means and turbines use wind energy to move nowadays people are using wind energy to produce electricity in wind farms means here we can convert a wind energy into electrical and in electrical energy and we can perform a various task with the help of wind energy so these are the natural sources means these are the natural energies that we get from a nature okay and these are in present in a very abundance okay abundance means yujo energy so tal and then they took me home a provide kiaa tikaa for example bring solar light and a tree okay our usual at the a geek Abubakar Thani was a tea is l'homme in energy SCADA prefer Carnot ie as compared to the artificial energies okay so Roger this is all about of a chapter thank you have a nice day\n"