Physical Science CH 3 Changes of State

Temperature is a measure of the average ___ energy of the particles in the object.

• thermal

• kinetic

• potential

• chemical

The heavier the particle, the ___ it moves.

• slower

• faster

• less

• more

What determines the speed of the atoms and molecules of a particular substance?

• size of the atoms and molecules

• temperature of the substance

• two/both of these

• none of these

Archimedes' principle states that the buoyant force on an ___ is equal to the weight of the displaced volume of fluid.

• object in the fluid.

• object floating on the fluid

• fluid mixing with another liquid

• substance dissolving into the fluid

The resistance of a fluid to flow is referred to as

• pressure

• energy

• viscosity

• shape

Which state of matter will hold its shape without a container?

• solid

• liquid

• gas

• plasma

The kinetic theory states that the higher the temperature, the faster the

• particles that make up a substance move

• bonds between atoms break down

• molecules of gas rush together

• lighter particles within a substance clump together

The change of a substance from a solid directly to a gas is called

• condensation

• evaporation

• melting

• sublimation

Evaporation refers to the change of state from a

• liquid to a gas

• gas to a liquid

• solid to a liquid

• liquid to a solid

The law of conservation of mass states that mass cannot be

• burned

• changed in form

• created or destroyed

• heated or cooled