Thermal Energy Ch. 1 Review (Amplify)

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance, which is related to its temperature.

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Front

How does energy transfer between objects of different temperatures?

Back

Energy transfers from an object that is hot to an object that is cold.

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Front

What is absolute zero?

Back

Absolute zero is the theoretical temperature at which molecules have stopped moving, defined as 0 Kelvin or -273.15°C.

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NGSS.MS-PS1-4

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Front

How do molecules in cold air move compared to those in hot air?

Back

Molecules in cold air move slower than those in hot air.

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Front

What happens to the speed of molecules when the temperature increases?

Back

As temperature increases, the speed of molecules increases.

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Front

What is conduction?

Back

Conduction is the transfer of thermal energy through direct contact between materials.

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What is convection?

Back

Convection is the transfer of thermal energy through the movement of fluids (liquids and gases).

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Front

What is radiation?

Back

Radiation is the transfer of thermal energy through electromagnetic waves, such as heat from the sun.

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Front

Why does food coloring spread faster in hot water?

Back

Food coloring spreads faster in hot water because the molecules are moving faster, allowing for quicker diffusion.

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Front

What is the relationship between temperature and kinetic energy?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

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