In a solid, the particles are held together by strong forces of attraction and are packed tightly together. This makes it difficult for the particles to move, so the force of attraction limits the motion of the particles the most in a solid.

In a liquid, the particles are held together by weaker forces of attraction and are not as tightly packed together. This makes it easier for the particles to move, so the force of attraction limits the motion of the particles less in a liquid than in a solid.

In a gas, the particles are not held together by any significant forces of attraction and are very far apart. This makes it very easy for the particles to move, so the force of attraction limits the motion of the particles the least in a gas.