potential energy that heats the air. chemical energy that moves the swing. kinetic energy which makes the swing slow down. thermal energy that is released into the atmosphere.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Alicia gives her brother a push while he is seated on a swing. She finds that after a few seconds, she needs to push again to keep him going. The reason her brother slows down is because the mechanical energy is converted into
Possibilities:
- potential energy that heats the air.
- chemical energy that moves the swing.
- kinetic energy which makes the swing slow down.
- thermal energy that is released into the atmosphere.

thermal energy that is released into the atmosphere.