Types Of Motions And Properties Of Matter

Front 1

Rotation

Back 1

The motion of a body turning about an axis, where each particle of the body moves along the circular path.

Front 2

Angular Velocity

Back 2

Defined in analogy with linear velocity.

Is the rate at which angular displacement changes with time.

Front 3

Angular Acceleration

Back 3

The time rate of change of angular velocity.

Front 4

Moment of Inertia

Back 4

The rotational analog for mass and is represented by I.

Front 5

Radius of Gyration

Back 5

The distance from an axis of rotation where the mass of a body may be assumed concentrated without altering the moment of inertia of the body about that axis.

Symbolized by K

Front 6

Torque

Back 6

Rotational analog of force

Front 7

Angular momentum

Back 7

The product of its moment of inertia about this axis and its angular velocity.

Front 8

Uniform Circular Motion

Back 8

The motion on a circular path at a constant speed but with changing velocity.

Front 9

Centripetal Force

Back 9

The force producing centripetal acceleration.

Front 10

Centrifugal Force

Back 10

The reaction force.

Equal in magnitude to the centripetal force but directed radially outward away from the center of rotation.

Front 11

Johannes Kepler

Back 11

He introduced the word "Satellite" to refer to the moons of Jupiter

Front 12

Satellite

Back 12

Means attendant

Front 13

Law of Ellipses

Back 13

First law of Kepler.

The orbit of a planet around the sun is an ellipse with the sun at one focus.

Front 14

Law of Equal Areas

Back 14

Second Law of Kepler.

The planet moves around the un in such a way that a line drawn from the sun to the planet sweeps equal areas in equal interval of time.

Front 15

Harmonic Law

Back 15

Third Law of Kepler.

Front 16

Escape Speed

Back 16

The minimum speed an object must have in order to escape the gravitational field of Earth without ever falling back.

Front 17

Blackholes

Back 17

Invisible stars.

Front 18

Singularity

Back 18

Point of zero volume and infinite density.

Front 19

Event horizon

Back 19

Opening of blackholes

Front 20

Swcharzchild Radius

Back 20

Radius of the event horizon

Front 21

Solid, Liquid, Gas and Plasma

Back 21

States of matter

Front 22

Amorphous

Back 22

The atoms and molecules are arranged randomly

Front 23

Crystalline

Back 23

The atoms and molecules are arranged in an orderly fashion called crystal lattice

Front 24

Nobel Laureate Irving Langmuir

Back 24

Discovered Plasma

Front 25

Aurora Borealis and Aurora Australis

Back 25

Northern and southern lights

Front 26

Francisco Quisumbing

Back 26

Invented the Quink used by Parker pens

Front 27

Strength of material

Back 27

Area of mechanics dealing with stress

Front 28

Elasticity

Back 28

Ability of a body to undergo stress

Front 29

Region OA

Back 29

Elastic region

Front 30

Tensile, Compressive, Shear and Volume

Back 30

Types of stress

Front 31

Elastic Modulus

Back 31

Constant that is equal to stress over strain

Front 32

Point A

Back 32

Elastic Limit

Front 33

Point B

Back 33

Point of little or no change

Front 34

Point M

Back 34

Ultimate strength

Front 35

Ultimate strength

Back 35

Maximum stress that an object can withstand without breaking

Front 36

Brittle

Back 36

An object is ______ if M is near to R

Front 37

Ductile

Back 37

An object is ______ if M is far away from R

Front 38

Fatigue

Back 38

Repeated removal and application of stress

Front 39

Tensile stress

Back 39

Stress that lengthens

Front 40

Compressive stress

Back 40

Stress that shrinks

Front 41

Young's Modulus

Back 41

Ratio of tensile stress to strain

Front 42

Shear Stress

Back 42

Affects shape without a change in volume

Front 43

Angle of Shear

Back 43

Measure of angular distortion due to Shear stress

Front 44

Pressure

Back 44

A volume stress

Force perpendicular per unit volume to the force

Front 45

Bulk Modulus

Back 45

States that change in pressure results in a change in volume

Front 46

Mass density

Back 46

Mass per unit volume.

Represented by Greel letter Rho

Front 47

Specific gravity

Back 47

Ratio of the density of a substance to the density of the standard substance

Front 48

alBiruni

Back 48

Introduced specific gravity sometime in the year 1025 A.D.

Front 49

Aneroid Barometer

Back 49

Has the advantage of being portable and compact

Front 50

Aneroid Cell

Back 50

A flexible metal capsule

Front 51

Bourdon Tube

Back 51

A tube bent nearly into a ring and closed at one end

Front 52

Piezoresistive materials

Back 52

Materials that change resistance to the flow of current when they are compressed or strained.

Front 53

Hydrostatic Pressure

Back 53

Force per unit area that a confined fluid comes in contact with.

Front 54

1.013X10^5 Pa or 1.0 Atmosphere

Back 54

Atmospheric pressure in sea level

Front 55

Simon Stevin

Back 55

Discover the Hydrostatic Paradox

Front 56

Blaise Pascal

Back 56

Built the Pascal vases

Front 57

Buoyant Force

Back 57

Upward force

Front 58

Hydrodynamics

Back 58

Study of fluids in motion

Front 59

Streamline

Back 59

The part followed by any succeeding particles

Front 60

Tube of Flow

Back 60

A bundle of streamlines

Front 61

Laminar

Back 61

The flow is ______ when the velocity of flow is small.

Front 62

Continuity equation

Back 62

Expression of conservation of mass

Front 63

Sphygmo

Back 63

Greek word that means pulse

Front 64

Korotkoff Sound

Back 64

Characteristic tapping sound heard through a stethoscope.