Unit 2 Test Review Question Preview (ID: 38381)


Physical Properties Of Matter. TEACHERS: click here for quick copy question ID numbers.

Cooking pans and electrical wires are.......
a) Poor conductors of heat and electricity and nonmetals
b) Good conductors of heat and electricity and metals
c) Good insulators of heat and electricity and nonmetals
d)

When you perform the streak test of a mineral you look at what color of the powder the mineral leaves behind on the tile. True of False
a) True
b) False
c)
d)

What are two reasons why color is not the best property to use in the identification of minerals?
a) A single type of mineral may be found in many colors.
b) Two or more minerals may have the same color.
c) Both A and B are correct.
d) You can use color alone to identify minerals.

Which two properties of minerals can be observed by scratching the mineral against other substances?
a) color and streak
b) luster and streak
c) streak and hardness
d) hardness and luster

The ability of one mineral to scratch another mineral is determined by the mineral's ___________
a) luster
b) streak
c) color
d) hardness

How the surface of a mineral appears when it reflects light is known as ________
a) streak
b) luster
c) conductivity
d) hardness

A student needs to find the density of a cube. Each side of the cub measures 3cm and the mass of the cube is 12g. What is the approximate density of the cube?
a) 0.4 g/cm3
b) 2.25 g/cm3
c) 4.0 g/cm3
d) 36 g/cm3

Which of the following lists of properties best describes nonmetals?
a) brittle, dull, insulator
b) malleable, shiny, conductor
c) brittle, shiny, conductor
d) malleable, dull, insulator

When metals, nonmetals, and metalloids are compared according to luster, which is the best description of the appearance of metalloids?
a) Dull
b) Powdery
c) Shiny
d) Either shiny or dull

An electric company is designing a new cell phone. They need a solid material that conducts electricity and can be made into a thin wire. Which material would best fit their needs?
a) nonmetal
b) metalloid
c) metal
d) semi-conductor

A student is examining an object in science class. It is pale yellow, brittle solid, with no shine. The sample is most likely a _____________.
a) nonmetal
b) metalloid
c) metal
d) semi-conductor

A student is examining an object in science class. It is solid, does not conduct, malleable but not ductile, and is a shiny silver color. The sample is most likely a ___________.
a) nonmetal
b) metalloid
c) metal
d) semi-conductor

Copper is a common metal. Which of the following properties does this metal most likely have?
a) low conductivity, low malleability, and low luster
b) High conductivity, high malleability, and low luster
c) Low conductivity, high malleability, and high luster
d) High conductivity, high malleability, and high luster

The capability of a substance to be stretched into thin wires without breaking is known as __________.
a) malleability
b) conductivity
c) luster
d) ductility

The capability of a substance to be molded and shaped, or hammered into sheets without breaking is known as __________.
a) ductility
b) conductivity
c) malleability
d) luster

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