Notes 6.1

Which of the following states of matter has the LOWEST level of energy?

• Solid

• Liquid

• Gas

• Plasma

What happens to the average kinetic energy of matter when it is heated?

• It increases

• It stays the same

• It decreases

• It cannot be determined

What state of matter is shown in the image?

• Solid

• Liquid

• Gas

• Thermal Energy

At what temperature does matter change phases from a solid to a liquid?

• Melting Point

• Boiling Point

• Condensation Point

• 0 degrees Celsius

When the temperature of matter decreases the particles ...

• speed up and move farther apart

• slow down and move farther apart

• speed up and move closer together

• slow down and move closer together

When thermal energy is added to a substance, the substance's particles move:

• More rapidly at an increased distance from each other.

• More slowly with a greater distance between each other.

• More rapidly with less distance between each other.

• More slowly with a reduced distance between each other.

What is the phase change called that occurs when a liquid turns into a gas?

• Condensation

• Freezing

• Melting

• Vaporization

The random motion of the particles in a substance is greatest when the substance is:

• condensed

• gas

• frozen

• liquid

Particles in a liquid move __________, than particles in a solid

• faster

• slower

• less randomly

• less fluidly

When particles collide with each other they...

• stop completely still

• transfer kinetic energy

• lose all their energy

• become smaller