- A flashlight is a kind of battery-operated device
- Battery is the source of electrical energy for battery-operated device
- Hence, battery is the source of electrical energy for a flashlight

- Electrical devices convert from electrical energy  into other forms of energy
- A flashlight is a kind of electrical device
- Hence, a flashlight converts electrical energy into other forms of energy

- The statement "Iron is a kind of metal " is irrelevant

- A flashlight converts electrical energy into other forms of energy
- A flashlight emits light
- A kind of is similar to a form of
- Light is a kind of energy
- So, a flashlight converts electrical energy into light energy

- Battery is the source of electrical energy for a flashlight
- A flashlight converts electrical energy into light energy
- Therefore, a flashlight converts electrical energy from the battery into light energy

- A flashlight converts electrical energy from the battery into light energy
- Batteries convert chemical energy to electrical energy
- So, when a flashlight is used, the energy is changed from chemical energy into electrical energy and then into light energy

Therefore, when a flashlight is used, the energy is changed from chemical energy into electrical energy and then into light energy
In which object does chemical energy most likely transform into electrical energy?
- A flashlight emits light 
- A kind of is similar to a form of 
- A flashlight is a kind of battery-operated device 
- Iron is a kind of metal 
- Electrical devices convert from electrical energy  into other forms of energy 
- Batteries convert chemical energy to electrical energy 
- Battery is the source of electrical energy for battery-operated device 
- A flashlight is a kind of electrical device 
- Light is a kind of energy