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Buoyant Force and Immersed Objects Quiz

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Questions and Answers

What is the main reason for increasing the volume of the air displaced?

To increase the speed of the gas in the Bunsen burner

To reduce the density of the air in the balloon

To produce bigger buoyant force (correct)

To decrease the temperature of the air in the balloon

How does using synthetic nylon benefit a balloon?

It provides air-proof properties to the material (correct)

It increases the weight of the balloon

It cools down the air inside the balloon

It decreases the volume of air in the balloon

According to Bernoulli's principle, what happens to pressure when the speed of a fluid is high?

Pressure decreases (correct)

Pressure oscillates

Pressure increases

Pressure remains constant

What is the relationship between speed and pressure in Bernoulli's principle?

As speed increases, pressure increases Signup and view all the answers

How do higher speed and lower pressure affect the distance between ping-pong balls?

Higher speed brings balls closer together Signup and view all the answers

What happens to water levels in vertical tubes P, Q, and R according to the information provided?

R > P > Q Signup and view all the answers

In Skill 1 - Understanding, what shape of cross-section is shown on Diagram 3 of an aeroplane wing?

Airfoil Signup and view all the answers