Physical Science Chapter 10 Test

The lifting force that causes an object to float is known as:

• density

• buoyancy

• volume

• fluidity

Properties that can be observed directly are called:

• physical properties

• chemical properties

• nuclear properties

• all of the above

In order to change the density of an object, you can:

• increase its mass, keeping its volume the same

• keep its mass and volume the same

• change its shape

• add more of the same material to it

The density of an object equals its:

•  mass ÷ volume.

• mass × volume.

• volume ÷ mass.

• volume + mass.

 In general, the solid phase of a substance is more dense than the liquid phase. An exception to this is exhibited by:

• copper

• water

• solder

• steel

An engineer testing a new material discovers that it breaks at a very low value of strain. The engineer could describe the material as very:

• brittle

• elastic

• dense

• hard

 Properties that can be observed directly are called:

• physical properties

• chemical properties

• nuclear properties

• all of the above

Change that is easily reversible is classified as ____ change.

• chemical

• nuclear

• physical

• atomic

Examples of amorphous solids include all of the following EXCEPT:

• salt

• latex

• plastic

• glass

The property of gold which would make it most useful in the creation of jewelry is:

• hardness

• elasticity

• malleability

• brittleness