EVERYDAY SCIENCE

Detailed explanation-1: -’Thermal’ energy is energy stored by things that stretch or compress. A book and a feather sitting next to each other on a shelf have ‘different’ potential energies. Two copies of the same book are in a book case.

Detailed explanation-2: -This form of energy is called elastic potential energy. It occurs when an object (such as our skin, a spring, a trampoline, or a rubber band) resists being stretched out of shape. The elastic potential energy in a rubber band can be used to do work.

Detailed explanation-3: -The terms thermal energy and heat energy are often used interchangeably as they both involve power created by heat. However, thermal energy refers to the stored or total internal energy of a system’s temperature, while heat represents thermal energy transfer.

Detailed explanation-4: -Answer and Explanation: The answer is 1. A reaction cannot be exothermic overall if activation energy is required. The statement is false because reactions can be exothermic overall even if activation energy.