Question 10
Attach several drawing pins to a clamped metal rod using small pieces of candle wax. Heat one end of the rod with a Bunsen burner and observe the pins as the rod heats up. Wear safety goggles, tie back long hair and keep a safe distance from the flame. Do not touch the hot rod or falling pins; let the apparatus cool before handling.
In this experiment, did the thermal energy disappear after it left the metal rod? Explain your answer based on the Law of Conservation of Energy.
In this experiment, did the thermal energy disappear after it left the metal rod? Explain your answer based on the Law of Conservation of Energy.
