Investigate energy transfer in a thermal system and investigate energy transfer in an electrical system

Here are the answers for Activity 9:

5. After the water becomes hot, you would observe steam escaping from the small hole in the side of the tin. The tin itself would also become hot to the touch.

   • Observation: Steam escapes from the hole, and the tin becomes hot.

6. The initial energy of this system comes from the chemical potential energy stored in the fuel of the burner or candle. When the fuel burns, this energy is converted into heat.

   • Initial energy source: Chemical potential energy from the burner/candle fuel.

7. The energy goes into heating the water and the tin. Some of this thermal energy is then transferred to the surroundings (the air) through convection and radiation, and some is carried away by the steam escaping from the hole.

   • Energy destination: Heats water and tin, then transfers to surroundings and escapes as steam.

8. The primary type of energy transfer taking place is heat transfer. This involves conduction from the flame to the tin, convection within the water, and radiation from the flame and the hot tin.

   • Type of energy transfer: Heat transfer (conduction, convection, radiation).

9. Here is the energy flow diagram for the system:

   $$\text{Chemical potential energy (fuel)} \xrightarrow{\text{burning}} \text{Heat energy (flame)} \xrightarrow{\text{conduction/radiation}} \text{Thermal energy (tin/water)} \xrightarrow{\text{convection/steam escape/radiation}} \text{Thermal energy (surroundings) + Kinetic energy (steam)}$$