Written Assessment Worksheet No. 5 Grade & Section: Name: Concept Check MELC: Differentiate between heat and temperature at the molecular level (S8FE-lg-2 Part I. Multiple Choice. Read each item carefully. Select the letter of the best answe 1. A cup of tea with a temp. of 80°C is put on a table in a 20°C room. What happen to thermal energy and molecular motion of the tea when it is left on the table? A. The thermal energy increases, and the molecules move faster. B. The thermal energy decreases, and the molecules move faster. C. The thermal energy increases, and the molecules move more slowly. D. The thermal energy decreases, and the molecules move more slowly. 2. What is the CORRECT direction of heat transfer? A. from an object of higher temperature to an object of lower temperature B. from an object of lower temperature to an object of higher temperature C. from any direction depending on the situation D. not enough information 3. Which of the following is TRUE about the relationship between the temperature of a gas and the average kinetic energy (KE) of the moving particles of a gas? A. The higher the temperature of a gas, the lower the KE of moving particles. B. The higher the temperature of a gas, the greater the KE of moving particies. C. The temp. of a gas and the KE of moving particles of a gas are not related. D. The temp. of a gas is inversely proportional to the KE of moving particles. 4. Which of the following is a CORRECT concept about heat and temperature? A. If the object absorbs heat, the temperature falls. B. If the object releases heat, the temperature rises. C. If the object absorbs heat, the temperature rises. D. If the object releases heat, the temperature remains the same. 5. What happens to the temperature of the water as it boils? A. increases B. decreases C. stays the same D. undetermined Part II. Discuss heat and temperature in the given situation below. "One of the phenomena that is happening in your community is the sagging of electrical power lines on a hot day. You can notice that the cable wires are longer during a hot day in summer compared to a cold weather in a rainy season. How can rou relate heat and temperature in this situation?"