Thermal Energy Is Not Temperature

What is the main reason the bowl of soup remains warmer than the mug of soup after adding identical ice cubes?

• The bowl has more soup, thus more molecules contributing to higher total kinetic energy.

• The ice cube in the bowl was smaller than the one in the mug.

• The bowl of soup started at a higher temperature than the mug.

• The bowl of soup was stirred more frequently.

Why does the soup and air reach the same temperature when left on the counter?

• Energy transfers from the warmer soup to the cooler air until equilibrium is reached.

• The soup absorbs energy from the air until they are the same temperature.

• The air cools down to match the temperature of the soup.

• The soup and air exchange molecules until they are the same temperature.

What happens to the total kinetic energy when your brother's mug of soup is heated in the microwave?

• The total kinetic energy increases because the average kinetic energy of the molecules increases.

• The total kinetic energy decreases because the soup is hotter.

• The total kinetic energy remains the same because the number of molecules doesn't change.

• The total kinetic energy decreases because the soup is in a smaller container.

How is thermal energy different from temperature according to the passage?

• Thermal energy is the total kinetic energy of all molecules, while temperature is the average kinetic energy.

• Thermal energy is the average kinetic energy, while temperature is the total kinetic energy.

• Thermal energy and temperature are the same, just measured differently.

• Thermal energy is only present in liquids, while temperature applies to all states of matter.

Why doesn't the air temperature change noticeably when the soup cools down?

• The air has many more molecules, so its total kinetic energy is much higher than the soup's.

• The air is already at a stable temperature and cannot change.

• The soup doesn't transfer enough energy to affect the air temperature.

• The air molecules move too fast to be affected by the soup.