The current will bypass the load or device and take the shortest route. This may cause the wires to overheat and can lead to damage in appliances, electrical shock, or even start a fire. And if you are not taking any preventative measures against short circuits, you are only increasing the risk of these situations happening. The current will bypass the load or device and take the shortest route. This may cause the wires to overheat and can lead to damage in appliances, electrical shock, or even start a fire. And if you are not taking any preventative measures against short circuits, you are only increasing the risk of these situations happening. It is vitally important to take safety precautions when working with electricity. Some ground rules need to be followed first. Activity #1 Heat flow 1. What happened to the materials that you put on the CUP of hot water? 2. Does all the object become hot? 3. What method of heat transfer happened? 4. Which among the materials are good conductors of heat? 5. Which among the materials are insulators of heat and electricity?