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Questions and Answers
What is the main reason for increasing the volume of the air displaced?
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?
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?
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?
What is the relationship between speed and pressure in Bernoulli's principle?
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How do higher speed and lower pressure affect the distance between ping-pong balls?
How do higher speed and lower pressure affect the distance between ping-pong balls?
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What happens to water levels in vertical tubes P, Q, and R according to the information provided?
What happens to water levels in vertical tubes P, Q, and R according to the information provided?
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In Skill 1 - Understanding, what shape of cross-section is shown on Diagram 3 of an aeroplane wing?
In Skill 1 - Understanding, what shape of cross-section is shown on Diagram 3 of an aeroplane wing?
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