Kinetic Molecular Theory Notes

Multiple Choice

Which of the following factors most affects the potential energy of an object at a certain height?

• The mass of the object

• The speed of the object

• The color of the object

• The shape of the object

Open Ended

Calculate the kinetic energy of the same roller coaster at Point B if the velocity is 50 m/s.

Multiple Choice

Which of the following is NOT a form of energy listed in the MR CENTS strategy?

• Mechanical

• Radiant

• Magnetic

• Thermal

Multiple Select

Which of the following are examples of radiant energy?

• Television

• Windmill

• Traffic Lights

• Cell Phone

Fill in the Blank

Energy stored in the bonds of molecules is called ___ energy.

Multiple Choice

Which of the following is an example of electrical energy?

• Lamp

• Sun

• Iron

• Bullhorn

Multiple Select

Which of the following objects are examples of thermal energy?

• Iron

• Toaster

• Fire

• Radio

Fill in the Blank

Sound energy is produced by vibrations in ___.

Open Ended

Calculate the kinetic energy. Show all of your work. You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s.

Open Ended

A roller coaster is at the top of a 50 m hill and weighs 500 kg. Calculate the kinetic energy. Show all of your work.

Multiple Choice

What form of energy is produced by a musical instrument?

• Sound energy

• Light energy

• Chemical energy

• Electrical energy

Open Ended

Is it possible for an object to use or contain more than one form of energy? Explain.

Multiple Choice

What forms of energy are used by a flashlight?

• Electrical and light energy

• Sound and heat energy

• Mechanical and chemical energy

• Nuclear and light energy

Open Ended

Which form of energy do you believe is most important for survival? Why?

Fill in the Blank

Phase changes occur when matter absorbs or releases ___.

Multiple Choice

What phase of matter is represented by water vapor in the first image?

• Solid

• Liquid

• Gas

• Plasma

Multiple Select

Which of the following are correct characteristics of a liquid?

• No fixed shape

• Fixed volume

• Rigid structure

• No fixed volume

Multiple Choice

Which phase of matter has a fixed shape and fixed volume?

• Solid

• Liquid

• Gas

• Plasma

Open Ended

Explain the difference between condensation and vaporization using the diagrams provided.

Fill in the Blank

The process by which a solid turns into a liquid is called ___.

Open Ended

Describe how energy (heat) affects the movement of atoms in different phases of matter.

Multiple Choice

What is the relationship between potential energy and height in the context of the roller coaster diagram?

• Potential energy increases as height increases.

• Potential energy decreases as height increases.

• Potential energy remains constant regardless of height.

• Potential energy is unrelated to height.