Physics - Dynamics

Question 1

What is Boyle’s Law?

Answer 1

The inverse proportional relationship between pressure and volume at a constant temperature and a fixed amount of gas.

Question 2

What does inverse mean?

Answer 2

Two variables moving in opposite directions.

Question 3

What is Charles’s Law?

Answer 3

Charles’s Law describes the directly proportional relationship between the volume and temperature (in Kelvin) of a fixed amount of gas, when the pressure is held constant.

Question 4

True or False is pressure applied to an enclosed fluid will be transmitted without a change in magnitude to every point of the fluid and to the walls of the container. The pressure at any point in the fluid is equal in all directions.

Answer 4

True

Question 5

Pascals Law is the driving principle behind aviation hydraulic systems, which are typically used to operate which systems?

Answer 5

Flight Controls.
Landing Gear extension and retraction.
Steering.
Brakes.

Question 6

Hydraulic fluids are designed to be what?

Answer 6

incompressible

Question 7

What is Potential Energy?

Answer 7

potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

Question 8

What is Kinetic energy?

Answer 8

the kinetic energy of an object is the energy that it possesses due to its motion.

Question 9

What is static pressure?

Answer 9

is the pressure exerted by a fluid at rest.

Question 10

What is Bernoulli’s principle?

Answer 10

In fluid dynamics it is 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. This can be applied to various types of fluid flow, whether the fluid is incompressible (most liquids) or compressible (air).

Question 11

Which area of aviation is the Bernoulli’s Principle most relevant?

Answer 11

In air flow in and around the aircraft.

Question 12

What is a barometer?

Answer 12

scientific instrument that is used to measure air pressure in a certain environment.

Question 13

Which principles does the altimeter use and for what purpose?

Answer 13

An aviation altimeter acts using barometric principles and is intended to be used at different levels matching the corresponding atmospheric pressure to the altitude.

Question 14

What are the standard atmospheric pressures?

Answer 14

1013 Hectopascals (hPa - The SI unit of atmospheric pressure).
1013 millibars.
1 bar.
29.92 inches of Mercury (in Hg).
760 mm of Mercury.
14.7 psi.