Thermal Energy and Kinetic Theory

Match each vocabulary word to its definition.

• measure of the average kinetic energy

• heat

• measure of disorder of a substance

• entropy

• transfer of thermal energy

• thermal energy

• the internal energy of an object due to motion

• temperature

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of the following statements are true regarding the kinetic molecular theory?

• Particles in gases have no energy

• Particles in solids have no motion.

• Particles have volume.

• Particles are always in motion.

Identify the temperature.

a

b

c

100

0

32

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A cup of water is at the same temperature as an entire lake of water.

Which has the greater thermal energy?

• The lake of water

• They both have no thermal energy

• They have the same thermal energy

• The cup of water

Tags

NGSS.MS-PS1-4

A chunk of ice is added to a bowl of hot soup. Which following statement is true?

• Heat leaves the soup and enters the ice

• Cold leaves the ice and enters the soup

• Heat is passed back and forth between the ice and the soup

• No heat is exchanged

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Match the corresponding method of Heat Transfer

a

b

c

Conduction

Convection

Radiation

Tags

NGSS.MS-PS3-3

Which of the two following statements are true of an insulator? (Select two)

• Heat passes through insulators easily.

• Glass is a good insulator

• Styrofoam is a good insulator.

• Heat has a difficult time passing through insulators.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

You are holding a cup of hot chocolate in your hand. Which statement is true?

• Heat is transferred by radiation and the particles in the hot chocolate molecules speed up.

• Heat is transferred by convection and the particles in your hand speeds up.

• Cold is transferred by conduction and the hot chocolate molecules slow down.

• Heat is transferred by conduction and the particles in your hand speed up.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Order the molecules from slowest to fastest.

• Solid

• Liquid

• Gases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Consider the phase change graph below. What happens to the temperature of a substance as it melts?

• The temperature increases while heat is being added.

• The temperature does not increase or decrease while heat is being added.

• You cannot tell what happens to the temperature.

• The temperature decreases, but no heat is being added.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4