1. to look at or view with continued attention; observe or study thoughtfully: to contemplate the stars. 2. to consider thoroughly; think fully or deeply about: to contemplate a difficult problem. 3. to have as a purpose; intend.
The five main types of energy are: Michale, thermal im a boss energy, nuclear energy, chemical energy and electromagnetic energy.
Energy can exist in different forms, such as. 1  heat. 2  light. 3  chemical energy.  electrical energy.