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Study For General And Powerplant Exam > Chp 3 Basic Physica > Flashcards

Chp 3 Basic Physica Flashcards

1
Q

What is matter

A

Anything that takes up space and has weight

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2
Q

What is an atom

A

The smallest particle of a chemical element that can exist, either alone or in combination with other atoms

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3
Q

What is a proton

A

They are positive charges of electricity

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4
Q

What is a molecule

A

The smallest particle of a substance that retains the characteristics of the substance

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5
Q

What is a compound

A

A combination of elements that contains a specific number of atoms of each element

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6
Q

How can compounds exsist

A

A solid liquid or gas

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7
Q

What is gas

A

The physical combination of matter in which a material takes the shape of its container and expands to fill the entire container

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8
Q

What is weight

A

A measure of the force of gravity acting on a body

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9
Q

What is the acceleration rate by gravity

A

32.2 ft per second

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10
Q

What is density

A

A measure of the amount of matter in a certain volume of matter

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11
Q

What is specific gravity

A

The ratio of of the density of a material to the density of pure water

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12
Q

What are the 4 factors that act on an aircraft

A

Lift
Drag
Gravity
Thrust

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13
Q

What are the types of mechanical advantages

A

Lever
First class lever
Second class lever
Third class lever
Inclined plane
Gears

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14
Q

What is motion

A

Action in which objects change their position

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15
Q

What is speed

A

Rate of motion

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16
Q

How do you calculate an incline plane

A

F=w x h/ d

17
Q

How do you calculate a third class lever

A

F= w x wa/ fa

18
Q

What is Newton’s first law

A

When an object is at rest it will try and remain at rest

19
Q

What is Newton’s second law

A

The amount of acceleration depends upon the mass of the object and the amount of forces used

20
Q

Newton’s third law

A

For every action their is a reaction

21
Q

How do you find vectors

A

R=[a2+b2]

22
Q

How do you calculate sin

A

Opposite/ hypotenuse

23
Q

How do you calculate cosine

A

Side adjacent/ hypotenuse

24
Q

How do you calculate tan

A

Tan= opposite/ adjacent

25
Q

What is strain

A

A force set up within an object that tries to prevent an outside force changing its shape

26
Q

What is strain

A

A deformation or physical change caused by stress in a material

27
Q

What is tension

A

Stress that tires to pull an object apart

28
Q

Where is potential energy in a aircraft

A

Fuel, battery, compressed springs

29
Q

How to calculate work

A

Work=force x distance

30
Q

What is power

A

The time rate of doing work.

31
Q

How to calculate power

A

Amount of work divided by time

Study For General And Powerplant Exam (2 decks)

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