A child swings on a swing at the playground. The motion of the swing resembles the motion of a pendulum. When is the kinetic energy of the swing the greatest?

at the bottom of the swing

when it reaches the highest point going backward

when it reaches the highest point going forward

It has the same amount of kinetic energy the entire time.

at the bottom of the swing

Kinetic energy is greatest at the lowest point, or the bottom, of the swing.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.