Science 8 - Mix and Flow of Matter Unit Exam

What is it called when we change from a Gas to Solid?

• Condensation

• Solidification

• Sublimation

• Fusion

What is it called when you change form a Gas to Liquid?

• Sublimation

• Condensation

• Solidification

• Vaporization

Which one of the following definitions are CORRECT about pure substances?

• All pure substances can be known as 'atoms'

• All pure substances are made up of mixtures

• All pure substances are made up of elements

• All pure substances are made up of molecules

What happens to the viscosity of a liquid as it is heated?

• It increases.

• It decreases.

• It stays the same.

How fast a fluid "runs".

• Change of State

• Flow Rate

• Density

• Buoyancy

The buoyant force acting on an object that is submerged in a fluid equals the weight of the fluid that is displaced by the object. This describes which principle?

• Quinton's Principle

• Archimedes' Principle

• Aristotle's Principle

• Pascal's Principle

Archimedes principle is achieved when an object neither rises nor sinks in a fluid. This allows fish to stay at a constant depth of water.

• Positive buoyancy

• Neutral buoyancy

• Negative buoyancy

This is the amount of mass in a certain volume of a substance.

• Solubility

• Viscosity

• Density

• Pressure

This unit is used to measure pressure.

• Newton

• Meter

• mL

• Pascal

The ability to be squeezed into a smaller volume.

• Pressure

• Compressibility

• Incompressibility

• Viscosity