Question

which phrase is the best definition of energy
the ability to generate heat
the ability to produce fusion
the ability to do work
ability to generate electricity
question 2
1 pts
which form of energy does an endothermic reaction use
sound energy
nuclear fusion
electrical energy
chemical energy

Explanation:

For the first question, energy is defined in physics as the ability to do work. Heat generation, fusion production, and electricity generation are just some of the ways energy can be manifested or used. For the second question, an endothermic reaction is a chemical reaction that absorbs heat (thermal energy), and the energy involved in the chemical - bond breaking and forming processes is chemical energy.

Answer:

Question 1: the ability to do work
Question 2: chemical energy