Particulate Nature of Matter

Particles of all matter are in constant random motion.

• True
• False

Tags

NGSS.MS-PS1-4

what causes brownian motion?

• diffusion of smoke particles in the air

• molecules in the air hitting the smoke particles

• sublimation of smoke particles

• smoke particles hitting the walls of the containers

Which statements describe the arrangement of particles in solids?

• particles are moving in all directions

• Particles are arranged in an orderly manner

• particles can slide over one another.

• particles vibrate about their positions

Which statement about liquids is correct?

• They have a fixed shape and a fixed volume.

• They have a fixed shape but not a fixed volume.

• They have no fixed shape but they do have a fixed volume.

• They have no fixed shape and no fixed volume.

The particles of solids ________________

• vibrate about their fixed postions

• are able to slide over each other

• move about freely at high speeds and in random direction

• do not move

The particles of liquids ________________

• vibrate about their fixed postions

• are able to slide over each other

• move about freely at high speeds and in random direction

• do not move

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The particles of gases ________________

• vibrate about their fixed postions

• are able to slide over each other

• move about freely at high speeds and in random direction

• do not move

Tags

NGSS.MS-PS1-4

These particles are held together by very strong forces of attraction

• Solid

• Liquid

• Gas

• Plasma

Arrange the strength of the forces of attraction between the particles of solids, liquids and gases from the strongest to weakest

• (strongest) gases > liquids > solids (weakest)

• (strongest) solids > liquids > gases (weakest)

• (strongest) gases > solids > liquids (weakest)

• (strongest) solids > gases > liquids (weakest)

What happens to particles of liquid when they are heated?

• They slide over one another faster and move further apart

• They slow down and compress

• They stop moving

• They slide over one another slower and move closer together