An idea, event, or object can be represented by a to people better understand it.

The representative model can be used to demonstrate the object or event or an idea to the people making them understand better.

Explanation:

Model representation is the best way to make people understand the idea or the event as verbal listening do not target the sense in much deeper way as the visual effect do.

The people will grasp of the model very easily as they could see it and they are not required to imagine. While imagining the event or the idea, half of the senses are involved in it and let the individual understand less.  

pe = weightxheight = 2000x1000=2,000,000joules

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right