Question

part a

what is the difference between the pressures inside and outside a bicycle tire called?

gauge pressure
absolute pressure
hydrostatic pressure
atmospheric pressure

Explanation:

Define the relationship between absolute, atmospheric, and gauge pressure

$$ P_{\text{gauge}} = P_{\text{absolute}} - P_{\text{atmospheric}} $$

Apply the definition to the bicycle tire

The pressure inside the tire is the absolute pressure \(P_{\text{absolute}}\), and the pressure outside the tire is the atmospheric pressure \(P_{\text{atmospheric}}\). The difference between them is the gauge pressure.

Answer:

• gauge pressure (Correct answer)
• absolute pressure
• hydrostatic pressure
• atmospheric pressure