Question

define energy and list two sources of heat energy
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Answer 1

Answer:

Energy, in physics, the capacity for doing work.

1. Nuclear reactions

2. Sun

Answer 2

Answer:

$\huge\bf \underbrace \red{Energy }$

Energy is the capacity for doing work.It may exist in potential, thermal, kinetic, electric, chemical, nuclear or various forms.

☯️Two sources of heat energy -:

• Gas fired water heater
• Solar collectors

♥️hope it will help you.♥️