प्रश्न 3. निम्नलिखितं श्लोकं पठित्वा तदाधारिताम् प्रश्नान् उत्तरत-(निम्न श्लोक को पढ़कर उस आधारित प्रश्नों
के उत्तर लिखिए-)
सुपूर्ण सदैवास्ति खाद्यान्नभाण्डे, नदीनां जलं यत्र पीयूषतुल्यम्।
इये स्वर्णवद्भाति शस्यैर्धरेयं, क्षितौ राजते भारतस्वर्णभूमिः॥
1. एकपदेन उत्तरत-(एक पद में उत्तर दीजिए-)
1. सदैव भारतस्य कि सुपूर्णमस्ति?
2. भारतस्य नदीनां जलें कीदृशमस्ति?
11. पूर्णवाक्येन उत्तरत-(पूर्ण वाक्य में उत्तर दीजिए-)
1. इयं भारतस्य धरा शस्यैः कीदृशी भाति?
2.का क्षितौ राजते?
Answers
Answer:
Heating as a transfer of energy
thermal
heat
temperature
In the last chapter we looked at thermal systems. The thermal energy of an object is the amount of energy it has inside of it, in other words, its internal energy. In a thermal system, thermal energy is transferred from one object to another. Heat is the transfer of thermal energy from a system to its surroundings or from one object to another. This transfer of energy is from the object at a higher temperature to the object at a lower temperature.
It is very important to know that, in science, heat and temperature are not the same thing.
Heat is the transfer of thermal energy from a system to its surroundings or from one object to another as a result of a difference in temperature. Heat is measured in joules (J). This is because heat is a transfer of energy.
Temperature is a measure of how hot or cold a substance feels and it is measured in degrees Celsius (°C). Temperature is a measure of the average kinetic energy of the particles in an object or system. We use a thermometer to measure the temperature of an object or substance