Answer:
the boy is in Kinetic energy 
Explanation:
Because when he swings he isn't experiencing any forces towards him only the swing experiences potential energy 
 
        
             
        
        
        
- "This energy is usually in the form of low-level thermal energy. It is only possible to extract work when there is a temperature difference, so low-level thermal velocity; this means that the force of friction and the applied force are equal in magnitude."
- "An energy transformation is the change of energy from one form to another. Energy transformations occur everywhere every second of the day. There are many different forms of energy such as electrical, thermal, nuclear, mechanical, electromagnetic, sound, and chemical."
 
        
                    
             
        
        
        
Answer: Neurone 
Explanation:
Neurone is also known as nerve cell. It is the basic unit of the nervous system, and helps to transmits/ conducts nerve impulses from the brain to the body or vice versa.