Question

Identify the energy as potential or kinetic

a) ice skating

b) a milkshake

c) gas in the tank

Answer 1

Ans. #A. Ice skating: The energy associated with a particle due to its motion is said to its kinetic energy. Ice skating indicates a person in motion. So, the energy associated with a person enjoying ice skating is its kinetic energy.

#B. Milkshake: A milkshake consists of numerous molecules like glucose, proteins, fats, etc.. The atoms bonded through chemical bonds in a molecule have chemical potential energy stored in the bond. Therefore, the energy associated with milkshake is chemical potential energy.

#C. Gas in a tank: The gas molecules confined in aby vessel (or when free) are under constant motion. So, the energy associated with gas molecules in the vessel is its kinetic energy.