Particle motion XL

As temperature rises ___________.

• an atom's kinetic energy stays the same

• an atom's kinetic energy increases

• an atom's kinetic energy decreases

• an atom's mass increases

Kinetic Energy means...

• energy that a particle possesses by virtue of being in motion.

• energy that a particle possesses by stored energy due to height.

• energy stored in the bonds of chemical compounds.

• radiant energy emitted by the sun

Arrange the 3 states of matter (from shortest to longest) based on their relative distance between particles.

• solid < liquid < gas

• gas < solid < liquid

• solid < gas < liquid

• gas < liquid < solid

The stronger the attraction between molecules, the ______ the melting and boiling points.

• Higher

• Lower

• Attraction does not effect melting and boiling points

Gas particles have the ________ kinetic energy because they move the fastest.

• least

• most

What kind of energy is added to or removed from matter to cause a phase change?

• Radiation

• Thermal

• Solar

• Wind

What happens to particles when they are heated?

• They speed up and spread out

• They slow down and compress

• They stop moving

• They move closer together and speed up

What happens to particles when heat is removed from them?

• They speed up and spread out

• They slow down and get closer together

• They stop moving

• They move closer together and speed up

What phase of matter is shown in the diagram? (The particles are close to each other but move around freely.)

• solid
• liquid
• gas
• physical change

What phase of matter is shown in the diagram? (It is a regular pattern and the particles are locked in place.)

• solid
• liquid
• gas
• physical changes