To answer your question, the answer is number 1. hope this help
The average kinetic energy of colliding particles can be increased by increasing temperature.
B.
Answer:
The particles in a solid are tightly packed and locked in place. Although we cannot see it or feel it, the particles are moving or vibrating in place.
Answer: Friction is a force that resists relative motion between two surfaces in contact. Depending on the application, friction may be desirable or undesirable.
