Question

1. bernoulli’s principle helps us understand__________

a. brakes
b. buoyancy
c. momentum
d. flight

1. according to boyle’s law, when the pressure of a gas increases at constant temperature, its volume _______________.

Explanation:

Question 29

Bernoulli's principle relates the speed of a fluid (like air) to its pressure. In flight, the shape of an airplane's wing (airfoil) causes air to move faster over the top, creating lower pressure there and higher pressure below, which generates lift. Brakes involve friction, buoyancy is explained by Archimedes' principle, and momentum is related to mass and velocity (Newton's laws). So Bernoulli's principle helps understand flight.

Boyle's law states that for a fixed amount of gas at constant temperature, the pressure and volume are inversely proportional. Mathematically, \( P_1V_1 = P_2V_2 \). So if pressure (\( P \)) increases, volume (\( V \)) must decrease to keep the product constant.

Answer:

d. Flight

Question 30