Particulate Nature of Matter

In which of the following states of matter does the particles NOT touch each other?

• solid

• liquid

• gas

What is the space between particles filled with?

• air

• vacuum

• water

Which of the following can be compressed?

• liquid

• solid

• gas

Which of the following has a definite shape?

• gas

• liquid

• solid

How do we calculate density?

• mass x volume

• mass / volume

• volume / mass

What describes the arrangement of particles in solids?

• Particles are far apart.

• Particles vibrate in fixed positions.

• Particles are closely packed.

• Particles slide past each other.

In which of the following states are the particles moving randomly and quickly?

• solid

• liquid

• gas

What happens to particles of a solid upon heating?

• They lose energy.

• They increase in numbers.

• They increase in size.

• They vibrate more vigorously.

What is meant by conservation of mass?

• Mass of particles increase during expansion.

• Size of particles increase during expansion.

• Size of particles remain the same during expansion.

• Mass of particles remain the same during expansion.

What describes the change in state from a liquid to a gas?

• condensation

• evaporation

• freezing

• sublimation