Instantenous velocity
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· Instantaneous velocity is the velocity of an object in motion at a specific
point in time. This is determined similarly to average velocity, but we narrow
the period of time so that it approaches zero. If an object has a standard
velocity over a period of time, its average and instantaneous velocities may
be the same.
Oersted's Law
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, · Ørsted's law, or Oersted's Law states that when a steady electric current
pass through a wire it creates a magnetic field around it.
Absolute Pressure
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· Absolute pressure is a pressure that is relative to the zero pressure in the
empty, air-free space of the universe. This reference pressure is the ideal or
absolute vacuum. It is denoted with the subscript "abs": Pabs.
Law of magnetism
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The most basic law of magnetism is that like poles repel one another and
unlike poles attract each other; this can easily be seen by attempting to
place like poles of two magnets together.
Resistance
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· Resistance is an electrical quantity that measures how the device or
material reduces the electric current flow through it. The resistance is
measured in units of ohms (Ω).
, Conventional current
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· assumes that current flows out of the positive terminal, through the circuit
and into the negative terminal of the source. ... Electron Flow is what
actually happens, and electrons flow out of the negative terminal, through
the circuit and into the positive terminal of the source
Static pressure
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· Static pressure is one of the most important factors in HVAC design.
Simply put, static pressure refers to the resistance to airflow in a heating
and cooling system's components and duct work. The push of the air must
be greater than the resistance to the flow or no air will circulate through the
ducts
Laminar flow
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· Laminar flow is a flow regime characterized by high momentum diffusion
and low momentum convection. When a fluid is flowing through a closed
channel such as a pipe or between two flat plates, either of two types of
flow may occur depending on the velocity and viscosity of the fluid: laminar
flow or turbulent flow.
Give this one a try later!
· Instantaneous velocity is the velocity of an object in motion at a specific
point in time. This is determined similarly to average velocity, but we narrow
the period of time so that it approaches zero. If an object has a standard
velocity over a period of time, its average and instantaneous velocities may
be the same.
Oersted's Law
Give this one a try later!
, · Ørsted's law, or Oersted's Law states that when a steady electric current
pass through a wire it creates a magnetic field around it.
Absolute Pressure
Give this one a try later!
· Absolute pressure is a pressure that is relative to the zero pressure in the
empty, air-free space of the universe. This reference pressure is the ideal or
absolute vacuum. It is denoted with the subscript "abs": Pabs.
Law of magnetism
Give this one a try later!
The most basic law of magnetism is that like poles repel one another and
unlike poles attract each other; this can easily be seen by attempting to
place like poles of two magnets together.
Resistance
Give this one a try later!
· Resistance is an electrical quantity that measures how the device or
material reduces the electric current flow through it. The resistance is
measured in units of ohms (Ω).
, Conventional current
Give this one a try later!
· assumes that current flows out of the positive terminal, through the circuit
and into the negative terminal of the source. ... Electron Flow is what
actually happens, and electrons flow out of the negative terminal, through
the circuit and into the positive terminal of the source
Static pressure
Give this one a try later!
· Static pressure is one of the most important factors in HVAC design.
Simply put, static pressure refers to the resistance to airflow in a heating
and cooling system's components and duct work. The push of the air must
be greater than the resistance to the flow or no air will circulate through the
ducts
Laminar flow
Give this one a try later!
· Laminar flow is a flow regime characterized by high momentum diffusion
and low momentum convection. When a fluid is flowing through a closed
channel such as a pipe or between two flat plates, either of two types of
flow may occur depending on the velocity and viscosity of the fluid: laminar
flow or turbulent flow.
