3. What is the term used to describe the heat released or absorbed as a result of phase change? A heat transfer B. internal heat C. endothermic heat D. latent heat 4. What could be the reason for the sagging of electrical power lines on HOT DAY? A Pollution B. Climate change C. thermal expansion D. global warming 5. 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 an object of lower temperature to an object of lower temperature D. from an object of higher temperature to an object of higher temperature 6. Which of the following is NOT a unit of temperature? A. Calorie B. Celsius C. Fahrenheit D. Kelvin 7. The decrease in temperature of a substance indicates that A. the number of particles in it decreases B. the average velocity of its particles increases C. the average potential energy of particles decreases D. the average kinetic energy of its particles decreases 8. A substance releases heat without changing its temperature whenever it is A. melting and boiling C. melting and condensing B. boiling and condensing D. freezing and condensing 9. Temperature of a body measures the molecular A. average kinetic energy C. differences in kinetic energy B. differences in potential energy D. differences in potential energy 10. What happens to the temperature of an object when the particles are moving faster? A. reduces B. increases C. remains constant D. increases then reduces​