How you place the Pea, Jowar and Fern at its proper systematic position? Draw a flow chart with example of.

Take the inside tray of a used up match box and place a small magnetic needle inside the tray . Now take a long connecting wire and wind it around the tray . Complete the electric circuit ny connecting in it , this wire , electric cell , plug key and a bulb as shown in the below figure .: Mark the position of the magnetic needle . take a bar magnet near to the magnetic needle . keep looking at the needle and close the plug key . the bulb will light up , and you will realize that the current has started flowing . does the magnetic needle change its position ? :

Answer the following questions: What do you understand by the kinetic energy of a body? With suitable examples explain how a body does work by virtue of its kinetic energy.

Draw schematic of power plant based on natural gas and answer the following questions : i. At which place natural gas power plant is situated in Maharashtra ? ii. How is pollution reduced in natural gas based power plant ? iii. Give two examples of eco-friendly electricity process.

Read the following paragraph and answer the questions: If heat is exchanged between a hot and cold object, the temperature of the cold object goes on increasing due to gain of energy and the temperature of the hot object goes on decreasing gue to loss of energy. The change in temperature continues till the temperatures of both the objects attain the same value. In this process, the cold object gains heat energy and the hot object loses haet energy. If the system of both the objects is isolated from the environment by keeping it inside a heat resistance box (meaning that the energy exchange takes place between the two objects only ), then no energy can flow from inside the box or come into the box. How will you state the principle briefly?