Understanding Air Expansion in a Sealed Bag

What was the initial condition of the plastic bag in the experiment?

• The bag was open to the air.

• The bag was sealed and left in a shaded area.

• The bag was sealed and placed under the sun.

• The bag was filled with water.

What happens to the air inside the bag when it is exposed to sunlight?

• The air remains at the same temperature.

• The air escapes from the bag.

• The air cools down and contracts.

• The air gains heat and expands.

How does the volume of the bag change after being left under the sun?

• The volume decreases.

• The volume remains the same.

• The volume increases.

• The volume fluctuates.

Which statement about the mass of air in the bag is correct?

• The mass of air fluctuates.

• The mass of air decreases.

• The mass of air remains the same.

• The mass of air increases.

What does the electronic balance measure in this experiment?

• The pressure inside the bag.

• The mass of the plastic bag of air.

• The temperature of the air.

• The volume of the bag.