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

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

- A flashlight converts electrical energy into other forms of energy
- A kind of is similar to a form of
- A flashlight emits light
- Light is a kind of energy
- Therefore, 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
- So, 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
Question
In which object does chemical energy most likely transform into electrical energy?

Context
- Batteries convert chemical energy to electrical energy 
- A flashlight is a kind of electrical device 
- A kind of is similar to a form of 
- A flashlight emits light 
- Electrical devices convert from electrical energy  into other forms of energy 
- A flashlight is a kind of battery-operated device 
- Light is a kind of energy 
- Battery is the source of electrical energy for battery-operated device