Question

The motion of particles is because of their _________ which ________ with rising temperature.

• A. potential energy, increases
• B. kinetic energy, increases
• C. potential energy, decreases
• D. kinetic energy, decreases

Answer 1

The correct option is B kinetic energy, increases

"Kinetic" means relating to the motion. So, motion of particles is associated with their kinetic energy. As the energy is given to the particles in the form of heat, the kinetic energy of particles is increases and the particles start moving faster. Thus, the kinetic energy of particles increases with the increasing temperature.