Identify potential and kinetic energy in systems. Complete the table below.

Let's break down these energy transfer activities.

Activity 11: Investigate energy transfer in biological systems

1. Horse eating grass (Figure 25):

   • a) Energy stored in the grass: The energy stored in the grass is chemical potential energy.
   • b) What happens to this energy: When the grass reaches the horse's body, the chemical potential energy is converted into chemical potential energy (stored in the horse's tissues), kinetic energy (for movement), and thermal energy (body heat).
   • c) Energy flow diagram: $$\text{Chemical potential energy (grass)} \xrightarrow{\text{digestion/metabolism}} \text{Chemical potential energy (horse)} \xrightarrow{\text{movement/body processes}} \text{Kinetic energy} + \text{Thermal energy}$$

2. Athlete drinking an energy drink (Figure 2 - assumed):

   • a) Energy stored in the energy drink: The energy stored in the energy drink is chemical potential energy.
   • b) What happens to this energy: When the drink reaches the athlete's body, the chemical potential energy is converted into chemical potential energy (stored in the athlete's body), kinetic energy (for movement), and thermal energy (body heat).
   • c) Energy flow diagram: $$\text{Chemical potential energy (drink)} \xrightarrow{\text{digestion/metabolism}} \text{Chemical potential energy (athlete)} \xrightarrow{\text{movement/body processes}} \text{Kinetic energy} + \text{Thermal energy}$$

Activity 12: Identify potential and kinetic energy in systems

Here is the completed table:

| Example of an energy system | Indicate whether it is a mechanical, biological, thermal or electrical system | Identify the energy transferred in the system