Solar (energy derived from the sun) panels make sense as a primary means of obtaining usable energy when the 2nd law of thermodynamics ( Heat spontaneously flows from a substance of higher temperature to a substance of lower temperature and never spontaneously in the reverse direction & Any reaction is never 100% efficient, some energy is always lost as heat) is taken into consideration, because they are a renewable source of energy ( a source that is not going to be depleted). The solar panels will always take in energy from the sun during the day and are effective with energy saving.
1. Which type of energy can be converted with this device?
A. Oil
B. Nuclear
C. Solar*
2. When at the top of a roller coaster not moving which of the following would be the greatest?
A. Speed
B. Kinetic Energy
C. Potential Energy*
3. When an object is at equilibrium it is?
A. Accelerating
B. Slowing down
C. Being still/ Moving at a constant speed*
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