ECA Review

Which state of matter has the weakest attractive force between particles?

• Gas

• Liquid

• Solid

• Plasma

Which state of matter has the strongest attractive force between particles?

• Gas

• Liquid

• Solid

• Plasma

What is required for melting and evaporation to occur?

• Loss of heat

• Gain of heat

• No change in heat

• Increase in pressure

What happens during condensation and freezing?

• Gain of heat

• Loss of heat

• No change in heat

• Decrease in pressure

Which phase change occurs when a liquid turns into a gas?

• Freezing

• Melting

• Evaporation

• Condensation

Which phase change occurs when a gas turns into a liquid?

• Freezing

• Melting

• Evaporation

• Condensation

According to the Particle Theory, what is all matter made up of?

• Atoms

• Particles

• Molecules

• Cells

Particles of the same substance like water, oxygen, and silver are:

• Different

• Identical

• Similar

• Unique

Particles are constantly:

• Moving

• Stationary

• Vibrating

• Rotating

The particles have __________ __________ between them. However, they are weak between the particles of a __________, stronger in a liquid, and the strongest in a __________.