Kinetic Model of Matter

When the temperature of matter increases, the particles _______.

• move slower

• keep moving at the same speed

• move faster

• not moving

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A solid has a fixed shape and fixed volume because ...............

• There is no intermolecular force to hold particles together

• Week intermolecular force holds particles together

• Strong intermolecular force holds particles together

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A gas has no fixed shape and no fixed volume because ...............

• There is a very weak intermolecular force to hold particles together

• Week intermolecular force holds particles together

• Strong intermolecular force holds particles together

What is the meaning of "random motion"?

• the molecules are NOT able to travel

• the molecules are traveling in a specific path

• the molecules are traveling in unpredictable (NO specific) path

• the molecules are traveling in some predicable path

Tags

NGSS.MS-PS1-4

What evidence is there for moving particles?

• Brownian motion

• Mass of an atom

• An atom has a volume

• An atom has nucleus and electrons

Brownian motion is ....................

• The vibration of gas particles about a fixed point.

• The stay still of gas particles in every state of matter

• The random motion of gas particles in all directions

• None of them

The name of process C can be .................

• Melting

• Evaporation

• Condensation

• Boiling

• Sublimation

Tags

NGSS.MS-PS1-4

Temperature relates to ...................

• average potential energy

• average kinetic energy

• Solar energy

• average chemical energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Melting is the process that ..............................

• particles lose energy

• particles gain energy

• energy of particles unchange

• None of them

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A gas has .............. (it takes the shape of the container) and ............... volume.

• fixed - fixed

• fixed - no fixed

• no fixed - no fixed

• no fixed - fixed