Aviation Physics

Worksheets 5 and 6 for Aviation Generals 1: LIRE, Newton's laws, etc.

L

Length of effort arm (in l/i=r/e)

I

Length of resistance arm (in l/i=r/e).

R

Resistance or weight (in l/i=r/e)

E

Effort force (in l/i=r/e)

32.3fps/s

Acceleration due to gravity on Earth

Kinetic Energy

When potential energy is released in a way that causes motion, it has been changed into ___.

Work

Force acting through a distance.

Torque

Force acting along a distance.

Matter

Anything that occupies space and has weight.

Energy

The capacity of an object to perform work.

Potential

The type of energy a compressed spring has.

Hydrometer

Device that measures the specific gravity of liquids.

33,000

Foot pounds per minute in one horsepower.

Air

The specific gravity of gasses commonly uses what as a reference?

Weight

The measure of pull (force) from gravity acting on the mass of an object.

Work

The product of force and distance.

550

Foot pounds per second in one horsepower.

Time

Power involves work (force*distance) and what other component?

Effort

A third class lever speeds up the movement of the resistance, requiring a large amount of what?

Law of Conservation

Matter can neither be destroyed or created, it can only change form.

Density

Weight per unit volume of a substance.

1150

When checking the specific gravity of a discharged aircraft lead-acid battery, approximately what numerical value will the calibrated float indicate?

Mass

The measure of the quantity of matter in an object.

Decrease

As a lead acid battery discharges, does the specific gravity of that battery increase or decrease?

62.4

Weight in lbs of one cubic foot of water at 4 degrees Celsius.

273

To convert degrees from C to K, add ___.

460

To convert degrees F to R, add ___.

Same as

If the temperature of a confined liquid is held constant while its pressure is tripled, the volume will be ___ the original volume.

Inverse

At a constant temperature, a gas's pressure and its volume have a (direct/inverse) relationship.

BTU

Amount of heat energy required to change the temperature of a pound of water one degree F.

First

Newton's ___ Law is about inertia--objects persist in their state of rest or motion in a straight line until acted upon.

Speed

How far an object will travel in a specific time.

Velocity

Denotes the rate of motion and the direction of an object.

Acceleration

Rate of change of velocity.

Second

Newton's __ law states force=mass*acceleration.

Third

Newton's ___ law states for every action, there is an equal and opposite reaction.

Direct

At a constant volume, a gas's temperature and its pressure have a/n (direct/inverse) relationship.

Conduction convection radiation

Methods by which heat is transferred from one location to another (in alphabetical order, no commas).

Temperature

A measure of the kinetic energy of the molecules of any substance.

Radiation

Method of heat transfer which can take place in a vacuum.

Conduction

Heat transfer by direct contact.

Convection

The heat transfer method utilized to cool aircraft piston engines.

Not change

If both the volume and the absolute temperature of a confined gas are doubled, the pressure will ___.

Stress

An object's internal reaction to an applied force.

Tension

Force that tries to pull an object apart.

Compression

A force that tries to crush an object.

Torsion

The stress an object experiences when it is twisted.

Bending

A combination of stresses from compression and tension.

Shear

A force that tries to cut or slice an object.

Strain

Distortion due to an applied force.

e=KL(t2-t1)

Formula for the expansion of a metal.

K

Coefficient of expansion of material (In the e=kL(t2-t1) formula).

Static pressure

Pressure based on the column height of a fluid.

Ram

Pressure created by the velocity of a fluid in motion.

Total pressure

Sum of static pressure and ram pressure.

Pascal

Who established the foundation of modern hydraulics and pneumatics?

Pascal

His law states that pressure set up in a fluid acts equally in all directions at right angles to containing surfaces.This principle is fundamental in explaining how fluids transmit pressure and is crucial in various applications such as hydraulic systems.

Pressure

Force/Area=__.