Motion changes to chemical energy. Stored energy changes to motion. Electricity changes to stored energy. Heat changes to electricity.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A handheld sewing machine uses a battery to make a needle move. The needle goes up and down quickly. Which energy change is taking place?
Possibilities:
- Motion changes to chemical energy.
- Stored energy changes to motion.
- Electricity changes to stored energy.
- Heat changes to electricity.

Stored energy changes to motion.