Chapter 9
The same force is applied to two cylinders that contain air. One has a
piston with a large area, and the other has a piston with a small area. In
which, if either, cylinder will the pressure be greater?-✔✔the small area
cylinder
If you filled an airtight balloon at the top of a mountain, how, if at all, would
the balloon change as you descended the mountain?-✔✔It would contract.
If the output piston in a hydraulic pump exerts a greater force than one
applied to the input piston, how is the pressure at the output piston
compared with the input piston?-✔✔the same
A large bird lands on a rowboat that is floating in a swimming pool. How will
the water level in the pool change when the bird lands on the boat?-✔✔it
will increase
The lift on airplane wings is explained by-✔✔Bernoulli's principle.
A force of 87 N pushes down on the movable piston of a closed cylinder
containing a gas. The piston’s area is 0.4 m2. What is the pressure
produced in the gas?-✔✔217.5 Pa
With the temperature held constant, the pressure of a gas in a cylinder with
a movable piston is increased from 5 kPa to 40 kPa. The initial volume of
the gas in the cylinder is 0.75 m3. What is the final volume of the gas after
the pressure is increased?-✔✔.0938 m^3
In a hydraulic system, a force of 555 N is exerted on a piston with an area
of 0.002 m2. The load-bearing piston in the system has an area of 0.3 m2.
a) Calculate in kPa the pressure in the hydraulic fluid induced by the
applied pressure.
The same force is applied to two cylinders that contain air. One has a
piston with a large area, and the other has a piston with a small area. In
which, if either, cylinder will the pressure be greater?-✔✔the small area
cylinder
If you filled an airtight balloon at the top of a mountain, how, if at all, would
the balloon change as you descended the mountain?-✔✔It would contract.
If the output piston in a hydraulic pump exerts a greater force than one
applied to the input piston, how is the pressure at the output piston
compared with the input piston?-✔✔the same
A large bird lands on a rowboat that is floating in a swimming pool. How will
the water level in the pool change when the bird lands on the boat?-✔✔it
will increase
The lift on airplane wings is explained by-✔✔Bernoulli's principle.
A force of 87 N pushes down on the movable piston of a closed cylinder
containing a gas. The piston’s area is 0.4 m2. What is the pressure
produced in the gas?-✔✔217.5 Pa
With the temperature held constant, the pressure of a gas in a cylinder with
a movable piston is increased from 5 kPa to 40 kPa. The initial volume of
the gas in the cylinder is 0.75 m3. What is the final volume of the gas after
the pressure is increased?-✔✔.0938 m^3
In a hydraulic system, a force of 555 N is exerted on a piston with an area
of 0.002 m2. The load-bearing piston in the system has an area of 0.3 m2.
a) Calculate in kPa the pressure in the hydraulic fluid induced by the
applied pressure.
