ch 2 states of matter

Lightning flashes contain which of the following types of matter?

• solid

• liquid

• gas

• plasma

Which unit is used for density?

• grams

• liters

• cubic centimeters

• grams per cubic centimeters

The surface particles of a sample of matter experience a strong downward pull and stretch tight enough for a spider to walk on it. This is an example of _.

• liquid state of matter

• solid state of matter

• surface tension

• viscosity

Attractive forces between particles in a sample of matter are strong and pull the particles close together, keeping them in their position. this is an example of __.

• liquid state of matter

• solid state of matter

• surface tension

• viscosity

At which temperature are the particles in a pencil moving the fastest?

• 50

• 40

• 30

• 20

The sum of all the potential energy and kinetic energy in an object is equal to its __.

• thermal energy

• kinetic energy

• potential energy

• force

A change in the state of matter is caused if enough __ is added to or removed from an object.

• thermal energy

• kinetic energy

• potential energy

• force

Dry ice is a solid that changes directly to a gas when thermal energy is added. This is an example of __.

• condensation

• sublimation

• deposition

• vaporization

Marc put a pot of water on to boil eggs. After a few minutes, all the water was gone. This is an example of __.

• condensation

• deposition

• sublimation

• vaporization

Snow forms in clouds because water vapor changes directly to ice. This is an example of __.

• condensation

• deposition

• sublimation

• vaporization