Particulate Model of Matter 1

When a substance in a solid state is ________, its particles gain energy and vibrate more vigorously about their fixed positions.

• heated

• cooled

• compressed

• broken

What happens to the particles of a solid when it is heated?

• They lose energy and stop moving

• They gain energy and vibrate more vigorously

• They melt immediately

• They become liquid

Refer to the diagram showing particles in a solid. What does the red arrow labeled 'upon heating' indicate?

• Particles move closer together

• Particles move further apart

• Particles freeze

• Particles disappear

In a solid, the particles vibrate about their ________ positions.

• fixed

• random

• moving

• changing

Fill in the blank: The ______ between the particles increases when a substance is heated.

• distance

• mass

• color

• shape

Fill in the blank: The volume of the substance ______ and the substance ______ when heated.

• increases, expands

• decreases, contracts

• remains, unchanged

• shrinks, solidifies

Fill in the blank: When a substance in solid state is cooled, its particles ______ energy and vibrate less vigorously about their fixed positions.

• lose

• gain

• absorb

• produce

Fill in the blank: The ______ between the particles decrease during contraction.

• distances

• sizes

• masses

• charges

Fill in the blank: The volume of the substance ______ and the substance contracts during contraction.

• decrease

• increase

• remain the same

• expand

Upon cooling, the arrangement of particles changes in which way?

• Particles move closer together

• Particles move farther apart

• Particles become more random

• Particles start to vibrate more