Thermal Energy and Air Conditioners Quiz

What does an air conditioner do to the air inside a building?

• It speeds up the movement of air molecules

• It slows down air molecules, making the air cooler

• It removes all air molecules from the room

• It creates new molecules to cool the air

Why do air conditioners make the air outside hotter?

• They destroy the heat energy inside the building

• They transfer heat energy from inside to the outside air

• They slow down all the molecules in the environment

• They remove heat energy from the entire city

According to the article, why does the temperature outside increase when many people use air conditioners at night?

• The air conditioners stop working after a certain time

• The warm air is trapped inside buildings

• Energy is transferred from many buildings to the outside air, increasing the temperature

• The air conditioners create more molecules, making the air denser

What scientific principle explains why an air conditioner cannot destroy heat energy?

• The law of gravity

• The law of conservation of energy

• The theory of relativity

• The law of magnetism

How is placing a cold washcloth on your forehead similar to how an air conditioner works?

• Both create cold energy to reduce temperature

• Both transfer energy from a warmer object to a cooler one

• Both speed up the molecules of the cooler object

• Both make molecules move randomly without any pattern

Why does a washcloth stop cooling your forehead after a while?

• The molecules in the washcloth stop moving

• The washcloth and your forehead reach the same temperature, stopping energy transfer

• The washcloth starts creating new heat energy

• The washcloth absorbs all the air around it

Explain how an air conditioner transfers energy between the inside and outside air.

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Why does energy transfer always happen when cooling an object, and what does this tell us about the conservation of energy?

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