When you pour water into a cup, it takes the shape of the cup. This happens because the water molecules...

are not locked into a fixed pattern and can move past each other.

are held tightly in place and vibrate with high energy.

expand to fill the entire volume of the container, including the air above.

lose all their kinetic energy upon being poured.

How is the motion of particles within a solid, such as an iron bar, best described?

They slide past one another freely.

They are moving randomly and are far apart.

They vibrate in fixed positions within a rigid structure.

They remain completely stationary with no energy.

Its molecules are very far apart.

Its molecules are locked in a rigid pattern and can only vibrate.

Its molecules can slide freely, adapting to external pressure.

Molecules in both solids and liquids are in a fixed grid.

Liquid molecules are locked in place, while solid molecules can slide.

Solid molecules vibrate in place, while liquid molecules slide past each other.

Solids have no molecular motion, while liquids have random, fast motion.