3. What does Bernoulli’s principle say about pressure as the velocity of a fluid increases?
4. What is velocity?
5. Why do balloons remain inflated?
6. Read the section about the weather balloon. Why does the balloon expand as it rises in the atmosphere?
7. What does Boyle’s law say about the relationship between volume and pressure?
8. What is the equation for Boyle’s Law?
9. What is Charles’s Law?
10. How does the kinetic theory be explained using Charles’s Law?
11. What is the equation for Charles’s Law?
12. Where is Bernoulli from?
13. Where is Boyle from?
14. Where is Charles from?
answer these correctly (incorrect answers like random letters will be reported/deleted)
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Answers
Answer:
You can observe a real-life application of Boyle's Law when you fill your bike tires with air. When you pump air into a tire, the gas molecules inside the tire get compressed and packed closer together. This increases the pressure of the gas, and it starts to push against the walls of the tire.
Answer:
3 In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in static pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738.
5 Helium balloons float because helium is less dense than air. Helium balloons deflate because helium atoms are small enough to slip between spaces in the balloon material. Helium balloons are Mylar and not rubber because there is less space between the molecules in Mylar, so the balloon stays inflated longer.
4 The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).
6 So what happens to a balloon as it rises through the atmosphere? Air pressure is simply a measure of how much air there is above you. As the balloon goes up through the atmosphere, the amount of air above it reduces, and so the pressure falls. As the pressure falls, the balloon expands.
7 This empirical relation, formulated by the physicist Robert Boyle in 1662, states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature; i.e., in equation form, pv = k, a constant. ...
8 P1V1 = P2P2
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