tanister. 13. How does the high heat capacity of water help the fish in a pond? A. The high heat capacity in the pond helps the fish swim effectively. B. The high heat capacity in the pond helps keeps the temperature of water stay relatively the same from day to night. C. The high heat capacity in the pond helps the fish maintain their body temperature. D. The high heat capacity in the pond helps keep the current of the water to stay relatively the same F. ELECTRICITY 1. What is the relationship between current and voltage? C. Cannot be determined. A. Directly proportional. B. Inversely proportional. D. No relationship exists between them. 2. What must be considered in order to measure the amount of voltage in a circuit? A. The voltmeter must be connected in parallel set up. B. The voltmeter must be connected in a series set up. C. Electron flow should be from negative to positive terminal. D. The operating voltage must be strictly followed. 3. What is the ammeter reading in the figure below? A. 1.1A B. 1.4A C. 1.6A D. 1.9A o 4. What is the voltmeter reading in the figure below? 20 A. 18.0V B. 17.5V C. 16.5V D. 15.4V 5. Which of the following is NOT true about current and voltage? The bulb in the circuit glows A. brighter in greater current C. dimmer in lesser current D. brighter in lesser voltage B. brighter in greater voltage 6. Which of the following data represents an accurate ammeter and voltmeter readings? A C. Number of dry cells Voltage Current Number of dry cells Voltage Current 1 2,6V 0.4A 1 8.0V 0.92A 2 3.4V 0.3A 2 8.5V 0.93A D. Number of dry cells Voltage Current Number of dry cells Voltage Current 1 1.3V 0.2A 1 5.2V 0.68A 2 1.5V 0.1A 2 5.1V 0.73A B.
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
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