Weekly Assessment: Unit 3 Week One

Why do you need to study Kinetic Molecular Theory?

• Just for fun

• To understand force and motion

• To understand earthquakes

• To understand behavior of solid, liquids, and gases

Principle 1: All matter is made up of________

• space

• mass

• air

• atoms

Principle 2: Atoms are in constant random __________

• molecules

• energy

• motion

• space

Molecular motion is least in ____________

• solid

• liquid

• gas

• plasma

If you add heat, energy ____________, so atoms move faster.

• decreases

• increases

• stays the same

If you remove heat, energy decreases so atoms move ______________

• faster

• slower

• stays the same

The energy of motion is known as ___.

• potential energy

• kinetic energy

• mechanical energy

Which of the following statements is true?

• Gases do not move in straight line

• Gas particles are spaced so far apart that most of the volume of gas is empty space

• Gas particles are not in constant motion

• Gas particles attract each other

Of these three states of matter, which one has the most kinetic energy? 

• Solid 
• Liquid 
• Gas

Which of the following is true regarding the kinetic molecular theory of gases?

• Gas particles are attracted to one another.

• Gases consist of closely spaced particles.

• Gas particles move around in an orderly manner.

• The temperature of a gas depends on the average kinetic energy of the gas particles.