Question 5

The air in a tire is an example of matter.

Matter is defined as anything that has mass and occupies space, and the air in a tire fits this definition as it is a substance that takes up space and has mass.

A) The heat from a fire

Heat is a form of energy, not matter. While it is associated with matter (such as the particles in a fire), it does not have mass or occupy space independently, making it an incorrect choice.

B) The air in a tire

Air is a mixture of gases, primarily nitrogen and oxygen, which constitutes matter. It has mass and occupies the space within the tire, making this option correct.

C) The force of gravity

Gravity is a fundamental force that acts on matter, but it itself is not matter. It does not have mass or occupy space, which disqualifies this option.

D) The sound from an airplane

Sound is a wave that transmits energy through a medium, but it is not matter itself. It does not have mass or occupy space in a traditional sense, making this choice incorrect.

Conclusion

The air in a tire is definitively the correct answer as it is a tangible substance that qualifies as matter due to its mass and volume. In contrast, the other options either represent forms of energy or forces, which do not fulfill the criteria for matter.