PS Test 5 (8th) 21-22

A solid has

• a changing shape depeding on the position

• a definite shape and volume

• none

Particles in a solid are

• completely loose between themselves

• tightly fixed in one position

• completely static

Particles in a solid

• are moving very fast

• are slightly vibrating

• completely static

There are two types of solids

• aqueous and oily

• crystalline and amorphous

• compressible and incompressible

Crystalline solids are those in which

• molecules form a regular repeating pattern

• molecules are arranged in irregular patterns.

• molecules are organized randomly

Salt, sugar and snow are examples of

• amorphous solids

• crystalline solids

• soft solids

When a _______________ is heated, it melts at a specific temperature.

• crystalline solid

• amorphous solid

• none

Plastics, rubber, and glass are examples of

• amorphous solids

• crystalline solids

• hard solids

• glass is a crystalline solid and quartz an amorphous solid

• glass is an amorphous solid and quartz a crystalline solid

• none

Which material do you think is more transparent? Explain

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