EXPLAIN: Select the words to complete the paragraph about how batteries store and use thermal energy to make electricity. fill in the blank with the words gain or lose

Question

During the day, thermal batteries are heated by the sun. The molecules in the batteries
gain
kinetic energy causing their temperature to increase. At night, the thermal batteries will
kinetic energy

Answer 1

In the context of thermal batteries and their function, here's how the paragraph can be completed:

During the day, thermal batteries are heated by the sun. The molecules in the batteries gain kinetic energy causing their temperature to increase. At night, the thermal batteries will lose kinetic energy.

This completion explains that during the day, the batteries absorb heat (gain kinetic energy), while at night, they release that heat (lose kinetic energy), which can then be converted into electricity.