Exploring Molecular Movement and Temperature in Thermal Energy

What is the primary goal of this lesson on thermal energy?

• To explore the history of thermal energy.

• To study the properties of different materials.

• To learn about the relationship between temperature and molecular motion.

• To understand the concept of heat transfer.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

According to the lesson, what does temperature measure?

• The average molecular movement.

• The color of an object.

• The volume of a substance.

• The weight of an object.

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NGSS.MS-PS1-4

Is there a limit to how cold things can get?

• No, things can get infinitely cold.

• Yes, because molecules eventually stop moving.

• No, temperature can always decrease.

• Yes, because molecules start moving faster.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the definition of temperature as discussed in the lesson?

• The total energy of a substance.

• The average speed of the molecules in a substance.

• The density of a substance.

• The color change in a substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How do you calculate the average speed of molecules?

• By finding the median speed.

• By subtracting the smallest speed from the largest speed.

• By adding all the speeds and dividing by the number of molecules.

• By multiplying all the speeds together.

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NGSS.MS-PS3-1

What do the lines around the molecules in the modeling tool represent?

• The size of the molecules.

• The temperature of the molecules.

• The color of the molecules.

• The speed at which the molecules are moving.

In the modeling tool activity, what should you draw in the colder air section?

• Molecules with different colors.

• Molecules with no lines.

• Molecules with shorter lines.

• Molecules with longer lines.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which heating system proposal involves heating a reservoir of water to 39 degrees Celsius?

• Water heater system.

• Solar heating system.

• Groundwater system.

• Electric heating system.

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NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the normal state temperature of the groundwater in the second heating system proposal?

• 30 degrees Celsius.

• 25 degrees Celsius.

• 35 degrees Celsius.

• 20 degrees Celsius.

How should you revise the statement 'Temperature is a measure of how hot or cold something is' to make it more complete?

• Temperature is a measure of the color of an object.

• Temperature is a measure of the weight of an object.

• Temperature is a measure of the volume of a substance.

• Temperature is a measure of the average molecular movement in a substance.

Tags

NGSS.MS-PS1-4