States of Matter

Particles of a liquid

• are tightly packed together and vibrate in place
• have no viscosity.
• collide with one another
• can move over and around each other

Tags

NGSS.MS-PS1-4

How is a gas best defined?

• no shape, no volume
• Definite shape, definite volume
• Invisible
• Definite volume, no shape

Molecules are closest together in a 

• Solid
• Liquid
• Gas
• plasma

Tags

NGSS.MS-PS1-4

Define a liquid

• no shape, no volume
• Definite shape, definite volume
• Found in stars
• Definite volume, no shape

Tags

NGSS.MS-PS1-4

A substance which has definite volume and takes the shape of its container because the particles slide past one another is a 

• gas
• plasma
• solid
• liquid

At what temperature do nitrogen molecules move fastest?

• 350 K
• 300 K
• 250 K
• 200 K

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

Pressure is caused by ______.

• gravity.
• gas molecules colliding with each other.
• gas molecules colliding with surfaces of the container.
• gas molecules reacting with each other.

Tags

NGSS.HS-PS2-1

Gas molecules can easily be compressed  because ___________. 

• gas molecules are soft
• gas molecules are far apart
• gas molecules follow the shape of the container
• gas molecules are in constant random motion

A substance has particles that are close together and form a repeating pattern. The particles can only vibrate and cannot slide past each other. This substance is most likely a...?

• gas
• solid
• liquid
• plasma

Tags

NGSS.MS-PS1-4

How do gas molecules move? 

• in an orderly fashion 
• constantly and randomly
• in straight line paths
• in a circular motion