Study sets matching "mechanical"

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Study sets matching "mechanical"

6 terms
Mechanisms
Substitution reaction
Mechanism
Chain reaction
Addition Reaction
A substitution reaction is a chemical reaction in which an at…
The mechanism of a reaction is the detailed step-by-step desc…
A chain reaction is a reaction that continues on and on becau…
An addition reaction is one in which two or more molecules re…
Substitution reaction
A substitution reaction is a chemical reaction in which an at…
Mechanism
The mechanism of a reaction is the detailed step-by-step desc…
Mechanics
Hooke's Law
Breaking strength
Limit of proportionality
Plastic
The extension of a spring is proportional to the force applied
The maximum stress that can be applied to a material without…
Up to this point a material obeys Hooke's Law
Remains deformed when a load is removed
Hooke's Law
The extension of a spring is proportional to the force applied
Breaking strength
The maximum stress that can be applied to a material without…
34 terms
Mechanics
Average speed
Instantaneous speed
Newton's First Law
Normal Reaction
The total distance divided by the total time, The overall rat…
Speed of an object at a given point in time; is constant for…
An object continues in uniform motion in a straight line or s…
A force that results from two objects being in contact and ac…
Average speed
The total distance divided by the total time, The overall rat…
Instantaneous speed
Speed of an object at a given point in time; is constant for…
8 terms
Mechanics
Distance travelled
Displacement
(Instantaneous) speed
Average speed
Length of path taken
The position of an object relative to a defined starting posi…
Rate at which distance is covered/changes (with time)
=Total distance travelled/total time taken
Distance travelled
Length of path taken
Displacement
The position of an object relative to a defined starting posi…
Mechanics
s
m
ms-1
ms-2
Time
distance
velocity/speed
acceleration
s
Time
m
distance
11 terms
Mechanics
Force (Newton)
Displacement
Speed
Velocity (ms-1)
A push or pull in a specific direction that changes the state…
Distance traveled in a specific direction.
The rate of motion of an object.
The speed of an object in a specific direction over a period…
Force (Newton)
A push or pull in a specific direction that changes the state…
Displacement
Distance traveled in a specific direction.
38 terms
Mechanics
Displacement
Motion
Speed
Velocity
Distance that an object is from some starting point and it is…
An objects displacement is constantly changing. ... Described by…
Distance traveled by an object per unit of time... ________=dist…
Speed in a given direction; it therefore tells us two things…
Displacement
Distance that an object is from some starting point and it is…
Motion
An objects displacement is constantly changing. ... Described by…
MECHANICS
DISTANCE-TIME GRAPHS
SPEED-TIME GRAPHS
SPEED-TIME GRAPHS (ACELERATION)
SPEED (v)
GRAPHS WHICH SHOW HOW DISTANCE OF AN OBJECT FROM A STARTING P…
GRAPHS WHICH SHOW HOW THE SPEED OF AN OBJECT CHANGES WITH TIM…
(FINAL SPEED-INITIAL SPEED)/TIME
(CHANGE IN DISTANCE)/CHANGE IN TIME... m/s... v=d/t
DISTANCE-TIME GRAPHS
GRAPHS WHICH SHOW HOW DISTANCE OF AN OBJECT FROM A STARTING P…
SPEED-TIME GRAPHS
GRAPHS WHICH SHOW HOW THE SPEED OF AN OBJECT CHANGES WITH TIM…
Mechanics
acceleration
air resistance
balanced forces
constant speed
change in speed over time, speeding up or slowing down.
friction acting on an object moving through air
when two forces combine to cancel each other out.
speed is not increasing or decreasing but remain consistant o…
acceleration
change in speed over time, speeding up or slowing down.
air resistance
friction acting on an object moving through air
Mechanics
Speed
m
s
ms-1
How far an object travels in a certain amount of time
Distance unit
Time unit
Speed unit
Speed
How far an object travels in a certain amount of time
m
Distance unit
31 terms
Mechanics
Gravitational Force
Force of friction
What are the forces pointing down a ra…
What is the normal force of a box on a…
Fg = GMm/r^2 ... g = g M/r^2
Uk (Fn)
down: mgsin(theta)
mgcos(theta)
Gravitational Force
Fg = GMm/r^2 ... g = g M/r^2
Force of friction
Uk (Fn)
28 terms
Mechanics
4/3 πr2
Put in a plastic bag
V2 - V1 or displacement container
Kg/m3
Volume of a sphere
Volume of a sponge
Volume of irregular objects
SI unit of density
4/3 πr2
Volume of a sphere
Put in a plastic bag
Volume of a sponge
13 terms
mechanics
define speed
define acceleration
how is an object moving if forces are…
define weight
anything which has motion
increasing speed
at rest or moving at a constant speed
how heavy something is due to gravity, the force of gravity a…
define speed
anything which has motion
define acceleration
increasing speed
11 terms
MECHANIC
WHY ARE SKILLED WORKERS WITH EXPERIENC…
WHAT DOES AN AUTO-MECHANIC NORMALLY DO…
GIVE AN EXAMPLE OF A VEHICLES SYSTEM... D…
WHAT IS REQUIRED BY AN EMPLOYER TO GET…
BECAUSE OF THE ADVENCEMENT OF MANY TYPES OF TECHNOLOGY
AN AUTO-MECHANIC NORMALLY INSPECT, MAINTTAIN OR REPAIR ANY OF…
FOR EXAMPLE ENGINES AND ELETTRICAL O COMPUTER SYSTEM
SOME EMPLOYERS ONLY REQUIRE A HIGH SCHOLL DIPLOMA, WHILE OTHE…
WHY ARE SKILLED WORKERS WITH EXPERIENC…
BECAUSE OF THE ADVENCEMENT OF MANY TYPES OF TECHNOLOGY
WHAT DOES AN AUTO-MECHANIC NORMALLY DO…
AN AUTO-MECHANIC NORMALLY INSPECT, MAINTTAIN OR REPAIR ANY OF…
mechanisms
What is the difference between Automat…
First generation robots
Second generation robots
Mechanism
Automation - the use of technology to ease human labor... Roboti…
preform simple tasks
sense their surroundings respond to change in their environment
a device that transmits movements so that... the output movement…
What is the difference between Automat…
Automation - the use of technology to ease human labor... Roboti…
First generation robots
preform simple tasks
6 terms
Mechanics
Difference between vector and scalar
SOH CAH TOA
Equilibrium
Moment
Vectors have displacement as well as a magnitude, Scalars hav…
Sin=opposite/hypotenuse.... Cos=adjacent/hypotenuse.... Tan=opposit…
Where two or more forces are equal or opposite and make a res…
The force about any point multiplied by the perpendicular dis…
Difference between vector and scalar
Vectors have displacement as well as a magnitude, Scalars hav…
SOH CAH TOA
Sin=opposite/hypotenuse.... Cos=adjacent/hypotenuse.... Tan=opposit…
5 terms
Mechanism
FRS
EA
ES
NA
In what... Mechanism ... NEAPS
...
...
...
FRS
In what... Mechanism ... NEAPS
EA
...
10 terms
Mechanics
Normal force
Frictional force
Static frictional force
Kinetic frictional force
The force which a surface exerts on an object with which it i…
The force that opposes the motion of an object which acts par…
The force that opposes the tendency of motion of a stationary…
The force that opposes the motion of a moving object relative…
Normal force
The force which a surface exerts on an object with which it i…
Frictional force
The force that opposes the motion of an object which acts par…
24 terms
The Mechanisms
Repression
Regression
Fixation
Identification
Putting an evant into the unconscious and forgetting it ever…
Expressing(as an adult) a time of being a child to deal with…
Too little or too much gratification in an area or developmen…
Reducing anxiety by adopting the characteristics or behaviors…
Repression
Putting an evant into the unconscious and forgetting it ever…
Regression
Expressing(as an adult) a time of being a child to deal with…
Mechanisms
Lever
Rod
Support point
Fulcrum
Palanca
Barra
Punto de apoyo
Punto de apoyo
Lever
Palanca
Rod
Barra
10 terms
Mechanics
Scalar
Vector
Moment
Principle of moments
Only has a size
Has a size and direction
Force x perpendicular distance
Sum of clockwise moments= sum of anti-clockwise moments
Scalar
Only has a size
Vector
Has a size and direction
Mechanisms
Free radical substitution
Nucleophilic substitution
Elimination
Electrophilic addition
Alkane to haloalkane
Haloalkane to alcohol, amine or nitrile
Haloalkane to Alkene
Alkene to haloalkane
Free radical substitution
Alkane to haloalkane
Nucleophilic substitution
Haloalkane to alcohol, amine or nitrile
15 terms
Mechanics
Displacement
Velocity
Acceleration
Translational equilibrium
Net distance of an object from its initial position
Rate of change of displacement
Rate of change of velocity
The sum of the resolved components of all the forces in any d…
Displacement
Net distance of an object from its initial position
Velocity
Rate of change of displacement
Mechanics
Velocity/speed
Acceleration
Forces are measured in
Weight force
ms-1
ms-2
Newtons (N)
N
Velocity/speed
ms-1
Acceleration
ms-2
16 terms
Mechanics
Scalar
Vector
Displacement
Distance
magnitude only
magnitude and direction
Straight line distance from start to end
Length of path taken by an object
Scalar
magnitude only
Vector
magnitude and direction
11 terms
Mechanisms
Chain and sprocket
Can and follower
Slot and peg
Crank, link and slider
Rotary to linesr
Rotary to oscillating
Oscillating to rotary
Rotary to reciprocal/oscillating
Chain and sprocket
Rotary to linesr
Can and follower
Rotary to oscillating
Mechanics
Definition of a moment
Principle of moments
Weight
Couple
The force x perpendicular distance between the line of action…
For a body in equilibrium, sum of anti-clockwise moments = su…
Mass x gravitational field strength
A pair of forces of equal size which act parallel to each oth…
Definition of a moment
The force x perpendicular distance between the line of action…
Principle of moments
For a body in equilibrium, sum of anti-clockwise moments = su…
Mechanics
Newtons 1st Law
Newtons 2nd Law
Newtons 3rd Law
Work
Every body remains in motion unless an unbalanced external fo…
F=ma
When object A exerts a force on object B, object B exerts a f…
Work is the transfer of energy by a force.
Newtons 1st Law
Every body remains in motion unless an unbalanced external fo…
Newtons 2nd Law
F=ma
25 terms
Mechanics
Acceleration (D)
Acceleration (F)
Force (F)
Gravity (N)
Rate of change of velocity
change in velocity/time
F = ma
9.81
Acceleration (D)
Rate of change of velocity
Acceleration (F)
change in velocity/time
20 terms
Mechanics
Friction
Momentum
Mass
Weight
A force that opposes tge relative motion of two objects on co…
Mass multiplied by the velocity
The measure of a bodies inertia
The force of gravity acting on a body
Friction
A force that opposes tge relative motion of two objects on co…
Momentum
Mass multiplied by the velocity
22 terms
Mechanics
Scalar
Vector
Resolving vertical and horizontal vect…
Moment
Quantity with only magnitude ... Speed... Power... Temperature
Quantity with magnitude and direction... Acceleration... Velocity... F…
Vertical - ®sin0⃣... Horizontal- ®cos0⃣... As long as the angle is…
The force x perpendicular distance, from the line of action t…
Scalar
Quantity with only magnitude ... Speed... Power... Temperature
Vector
Quantity with magnitude and direction... Acceleration... Velocity... F…
Mechanics
Force
Inertia
Newtons 1st law
Law of Inertia
a push or a pull
tendency of an object in motion stays in motion, object at re…
An object at rest tends to stay at rest unless acted upon by…
Newton's 1st law gives the definition of Inertia
Force
a push or a pull
Inertia
tendency of an object in motion stays in motion, object at re…
11 terms
Mechanics
Plancks constant
Speed of light
N
L
6.626•10^-34
3.0•10^8
Principal
Angular momentum
Plancks constant
6.626•10^-34
Speed of light
3.0•10^8
54 terms
Mechanics
Physical quantity
Six base unit
Average speed
Instantaneous speed
A property of an object or phenomenon that can be measured -…
Time,temperature,length, amount of substance, current, mass
The rate of change in distance calculated over a complete jou…
The speed at the moment it is measured - over an infinitesima…
Physical quantity
A property of an object or phenomenon that can be measured -…
Six base unit
Time,temperature,length, amount of substance, current, mass
31 terms
Mechanics
Speed
Displacement
Velocity
Acceleration
Distance travelled in a given time
Distance in a given direction
Speed in a given direction
Rate of change of velocity with respect to time
Speed
Distance travelled in a given time
Displacement
Distance in a given direction
78 terms
Mechanics
Scalar and vector difference
Acceleration: s or v
Pressure: s or v
Stress: s or v
A scalar has a magnitude only, a vector has a magnitude and a…
V
S
S
Scalar and vector difference
A scalar has a magnitude only, a vector has a magnitude and a…
Acceleration: s or v
V
Mechanics
State two scalar quantities that have…
Explain why average speed is not the s…
How do you determine the input power o…
When the net force acting is zero what…
Stress and Pressure or Energy and Work done.
Speed is distance/time and velocity is displacement/time so t…
Firstly measure the mass of the object using scales or the he…
The net moment will equal zero.
State two scalar quantities that have…
Stress and Pressure or Energy and Work done.
Explain why average speed is not the s…
Speed is distance/time and velocity is displacement/time so t…
66 terms
Mechanisms
What body plane divides the body down…
What body plane divides the body into…
What body plane divides the body into…
Anatomical term meaning "nearer the he…
midsagittal
frontal (coronal)
transverse
superior
What body plane divides the body down…
midsagittal
What body plane divides the body into…
frontal (coronal)
47 terms
Mechanisms
Baroreceptors are located in
Baroreceptors are
When BP rises
Baroreceptors stimulate
carotid sinuses... aortic arch... walls of large arteries of the ne…
pressure sensors
the stimulate baroreceptors which act on cardiac centers whic…
parasympathetic system ... heart rate decreases ... CO falls... BP ret…
Baroreceptors are located in
carotid sinuses... aortic arch... walls of large arteries of the ne…
Baroreceptors are
pressure sensors
Mechanics
Force
Acceleration
Mass
Work
F=ma
a=v/t
m=F/a
W=Fd
Force
F=ma
Acceleration
a=v/t
Mechanics
Cursive a
A
Cursive d
E
Acceleration
Amplitude
Distance
Energy
Cursive a
Acceleration
A
Amplitude
Mechanics
kinematic equations
gravity=
velocity equation
acceleration equation
9.8
v=d/t
a=v/t
kinematic equations
gravity=
9.8
5 terms
Mechanics
Velocity
Equations of motion for constant accel…
Derive: v = u+at
Derive: s=ut+½at²
Speed with direction. (Displacement÷Time). Units: ms⁻¹
v=u+at, v²=u²+2as, s=ut+½at², s=t(v+u)/2
a=(v-u)/t.... Acceleration is change in velocity ÷time
s=(Average Velocity)×Time... s=(u+v)½ ×Time... s=(u+u+at)½×t... s=ut+½…
Velocity
Speed with direction. (Displacement÷Time). Units: ms⁻¹
Equations of motion for constant accel…
v=u+at, v²=u²+2as, s=ut+½at², s=t(v+u)/2
Mechanical Systems
Belt & Pulley
Bevel Gear
Cam & Follower
Crank & Slider
The transmission of power between shafts by means of a belt c…
One of a pair of gears used to connect two shafts whose axes…
A pear-shaped disk with an off-center pivot point, used to ch…
A pivot pin near the outside edge of a wheel or disk that cha…
Belt & Pulley
The transmission of power between shafts by means of a belt c…
Bevel Gear
One of a pair of gears used to connect two shafts whose axes…
7 terms
Mechanisms
Nucleophilic Substitution
Elimination
Electrophilic Addition
Elimination of water from alcohols
Nucleophilic Substitution
Elimination
Mechanisms
Electrophile
Nucleophile
Oxidation of primary alcohols
Oxidation of secondary alcohols
A species that accepts electron density/ a pair of electrons…
A species that donates a pair of electrons to form a double b…
Alcohol - aldehyde - carboxylic acid
Alcohol - ketone
Electrophile
A species that accepts electron density/ a pair of electrons…
Nucleophile
A species that donates a pair of electrons to form a double b…
24 terms
Mechanics
What is the proof for s= ut + 0.5at*2?
What is the proof for v2 = u2 + 2as
What is important for graph descriptio…
What is Newton's first law of motion?
1. the gradient of the graph... 2.use numbers to describe the gr…
An object rest will remain at rest unless acted on bye an unb…
What is the proof for s= ut + 0.5at*2?
What is the proof for v2 = u2 + 2as
10 terms
Mechanics
Scalar
Vector
Acceleration
Work Done
Only magnitude
Magnitude and Direction
Rate of change of momentum (v-u/t)
Force x distance moved in direction
Scalar
Only magnitude
Vector
Magnitude and Direction
27 terms
Mechanisms
The 3 mechanisms
Free radicals
Three steps of free radical substitution
Initiation
Free radical substitution, Electrophilic addition, Nucleophil…
Atoms or groups of atoms that have a single unpaired electron…
Initiation, chain propagation, termination
The UV light breaks up the Chlorine molecule into two free ra…
The 3 mechanisms
Free radical substitution, Electrophilic addition, Nucleophil…
Free radicals
Atoms or groups of atoms that have a single unpaired electron…
Mechanisms
Belt and pulley
Bevel gear
Cam and follower
Crank and slider
The transmission of power between shafts by means of a belt c…
One of a pair of gears used to connect two shafts whose axes…
A pear shaped disk with an off center pivot point, used to ch…
A pivot pin near the outside edge of a wheel or disk that cha…
Belt and pulley
The transmission of power between shafts by means of a belt c…
Bevel gear
One of a pair of gears used to connect two shafts whose axes…
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