Fluids Unit Test

The three main states of matter are:

• matter, fluid, gas

• fluid, solid, oxygen

• solid, liquid, gas

• liquid, matter, gas

The three postulates of the particle theory of matter include:

• space, size, heat

• space, movement, attraction

• size, heat, attraction

• particles, density, viscosity

Viscosity is the thickness of a fluid.

• True

• False

An example of a viscous fluid is...

• syrup

• water

• gas

• all of the above

The affect of temperature on viscosity is the same for liquids and gases.

• True

• False

For a liquid, an increase in temperature will...

• increase viscosity

• decrease viscosity

• not change viscosity

For a gas, an increase in temperature will...

• increase viscosity

• decrease viscosity

• not change viscosity

Density is defined as:

• the amount of liquid in a container

• the amount of matter packed into a particular space

• the thickness of fluid

To determine the density of an object, one would use the following formula:

• volume divided by mass

• mass divided by volume

• density divided by mass

Archimedes' principle states that the upward buoyant force of a fluid is equal to the weight of the fluid displaced. In other words...

• if the fluid is more dense than the object, the object will sink.

• if the object is less dense than a fluid, the object will sink.

• if the density of the fluid is equal or greater than the object, that object will float.