Heating affects particles in solids, liquids, and gases by what general effect?

Heating affects particles in solids, liquids, and gases by what general effect?

• A. All states gain more kinetic energy and movement
• B. Only solids increase movement
• C. Only gases move faster
• D. Particles stop moving

Answer: (A)

Heating adds energy to the particles, increasing their kinetic energy and how much they move. Temperature reflects average kinetic energy, so adding heat makes particles move faster or vibrate more. In a solid, that shows up as stronger vibrations about fixed points; in a liquid, molecules slide past each other more quickly; in a gas, they move even more rapidly and collide more often. The general effect across all states is that particles gain kinetic energy and move more as heat is added. If enough energy is added, phase changes can occur, like melting or boiling.

Heating adds energy to the particles, increasing their kinetic energy and how much they move. Temperature reflects average kinetic energy, so adding heat makes particles move faster or vibrate more. In a solid, that shows up as stronger vibrations about fixed points; in a liquid, molecules slide past each other more quickly; in a gas, they move even more rapidly and collide more often. The general effect across all states is that particles gain kinetic energy and move more as heat is added. If enough energy is added, phase changes can occur, like melting or boiling.