Question 1 (1 point) The total amount of energy in the universe never changes%2C but the availability of each different type of energy to do work can change tremendously. What best explains this change in available energy%3F a Energy can only be transferred as heat. b Energy can only be created through nuclear reactions. c Energy is regularly changing from one form into another. d Energy is always converted with 100 percent efficiency.
c) Energy is regularly changing from one form into another.
The correct answer is c) Energy is regularly changing from one form into another.
To answer this question, we need to look at the different options and determine which one best explains the change in available energy.
a) Energy can only be transferred as heat. This statement is incorrect because energy can be transferred and converted into different forms, not just as heat.
b) Energy can only be created through nuclear reactions. This statement is also incorrect because energy can be created through various processes, not limited to nuclear reactions alone.
c) Energy is regularly changing from one form into another. This statement is true. Energy can be transformed from one form to another. For example, electrical energy can be converted into mechanical energy or chemical energy can be converted into thermal energy.
d) Energy is always converted with 100 percent efficiency. This statement is incorrect. In reality, energy conversions are not 100 percent efficient. Some energy is always lost as heat or other forms of waste energy during a conversion process.
Therefore, the correct answer to the question is c) Energy is regularly changing from one form into another.