Pre-Lab Preparation Sheet for Lab 2: Energy Transfer and Temperature Change(Due at the beginning of Lab 2)Directions: Read over Lab 2 and then answer the following questions about the procedures.What is your Prediction 1-1?What is your Prediction 2-1?Why are first 4 and then 8 pulses of heat transferred to the same mass of water in Activity 2-1?How is specific heat capacity defined? How will you find the specific heat capacity of water in Activity 2-2?What is the meaning of mechanical equivalent of heat?Lab 2:Energy Transfer and Temperature Change... the quantity of heat produced by the friction of bodies, whether solid or liquid, is always proportional to the quantity of energy expended.—James JouleOBJECTIVESTo establish the concept of heat as heat energy transfer from a substance at a higher temperature to one at a lower temperature.To quantify the relationship between the heat energy transferred to a system and the change in temperature of the system.To understand the meaning of specific heat and measure its value for several liquids.To determine the equivalence between the common unit of heat energy, the calorie, and the unit of energy, the joule.OVERVIEWSo far you have made observations that indicate that interactions take place when two substances in thermal contact are at different temperatures. We have called these interactions “heat energy transfer.” There are other ways to raise the temperature of an object. For example, you could rub a piece of metal on emery paper or sandpaper and measure its temperature increase with a thermometer. Also, as you have observed in Lab 1, it is possible to produce a temperature increase using an electric heater by supplying electrical energy to it. Observations like these caused physicists and engineers in the middle of the nineteenth century to conclude that heat is just a form of energy, the form that flows when there is a temperature difference between two objects. Today a physicist or engineer would say that heat is a..