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.

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