Study sets matching "simple machines mechanical"

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Study sets matching "simple machines mechanical"

19 terms
Simple Machines and Mechanical Advantage
inclined plane
screw
wedge
pulley
inclined plane
screw
19 terms
Mechanical advantage, Simple Machines
What is the mechanical advantage of an…
What is the mechanical advantage of a…
What is the mechanical advantage of a…
first-class lever
Length of incline... ----------------... Height of incline
Distance from fulcrum to input force... ----------------------... D…
Radius of the wheel... --------------------... Radius of the axle
A simple machine with its fulcrum located between the input f…
What is the mechanical advantage of an…
Length of incline... ----------------... Height of incline
What is the mechanical advantage of a…
Distance from fulcrum to input force... ----------------------... D…
15 terms
Mechanical Advantage & Simple Machines
Effort Force
Resistance Force
Effort Distance
Resistance Distance
amount of force applied to simple machine
amount of force to overcome using a simple machine
The amount of distance needed in order to use a machine (leng…
The amount of distance a machine moves an object. (Height of…
Effort Force
amount of force applied to simple machine
Resistance Force
amount of force to overcome using a simple machine
10 terms
mechanical advantage and simple machines
work
simple machine
compound machine
mechanical advantage
work is done when a force causes object to move in the same d…
device that makes work easier with only 1 movement. can chang…
machine that is a combination of simple machines
number of times a machine increases the force applied to it (…
work
work is done when a force causes object to move in the same d…
simple machine
device that makes work easier with only 1 movement. can chang…
Simple Machines Mechanical Advantage
Inclined Plane
Wedge
Screw
Lever
Length of incline/height of incline
Length of wedge/width of wedge
Length around threads/length of screw
Distance from fulcrum to input force/distance from fulcrum to…
Inclined Plane
Length of incline/height of incline
Wedge
Length of wedge/width of wedge
Mechanical Advantage and Simple Machines
What's a machine?
Ideal Mechanical Advantage (IMA)
If MA> 1
If MA<1
A machine is anything that transfers energy. ... ·Work Input: th…
IMA = effort distance/resistance distance
The output force is greater than input
The output force is less than input
What's a machine?
A machine is anything that transfers energy. ... ·Work Input: th…
Ideal Mechanical Advantage (IMA)
IMA = effort distance/resistance distance
Simple Machines and Mechanical Advantage
Purpose of Simple Machines
Pulley
Lever
Wedge
They make work easier by allowing us to push or pull over inc…
Uses grooved wheels and a rope to raise, lower, and move a lo…
A stiff bar that rests on a support called a fulcrum and lift…
An object with at least on slanting side ending in a sharp ed…
Purpose of Simple Machines
They make work easier by allowing us to push or pull over inc…
Pulley
Uses grooved wheels and a rope to raise, lower, and move a lo…
Mechanical advantage/simple machines
block and tackle
compound machines
first class levers
ideal machine
made up of fixed and movable pulleys... Mechanical advantage=3
machines made of combinations of simple machines ... Example: Ap…
always changes the direction of the input force. If fulcrum i…
a machine that is 100% effecient
block and tackle
made up of fixed and movable pulleys... Mechanical advantage=3
compound machines
machines made of combinations of simple machines ... Example: Ap…
Simple Machines and Mechanical Advantage
pulley
inclined plane
lever
screw
a wheel that is used with a cord or rope; when you pull downw…
a flat, slanted surface that works like a ramp; PURPOSE: make…
a bar that pivots or turns on a fixed point called the fulcru…
a spiral wrapped around a center post; PURPOSE: lifts objects…
pulley
a wheel that is used with a cord or rope; when you pull downw…
inclined plane
a flat, slanted surface that works like a ramp; PURPOSE: make…
14 terms
Mechanical Advantage and Simple Machines
Ideal Mechanical Advantage of a pulley
Ideal Mechanical Advantage of a lever
Ideal Mechanical Advantage of a ramp
Ideal Mechanical Advantage of a screw
number of supporting strands
input lenght from fulcrum over output lenghth from fulcrum
lenghth of incline over height of incline
lenghth of thread over height of screw
Ideal Mechanical Advantage of a pulley
number of supporting strands
Ideal Mechanical Advantage of a lever
input lenght from fulcrum over output lenghth from fulcrum
10 terms
mechanical advantage and simple machines
work
simple machine
compound machine
mechanical advantage
work is done when a force causes object to move in the same d…
device that makes work easier with only 1 movement. can chang…
machine that is a combination of simple machines
number of times a machine increases the force applied to it (…
work
work is done when a force causes object to move in the same d…
simple machine
device that makes work easier with only 1 movement. can chang…
27 terms
Mechanical Force & Simple machines
gravity
magnetism
magnetic field
pulley
a force of attraction between two objects
a force that may attract or repel certain materials
is the space around a magnet where the force of attraction is…
A rope wraps around a wheel. as the wheel rotates, the rope w…
gravity
a force of attraction between two objects
magnetism
a force that may attract or repel certain materials
34 terms
Simple Machines and Mechanical Advantage
Lever
Pulley
Wheel and axle
Inclined plane
A bar that pivots at a fixed point
A wheel over which a rope, chain, or wire passes
Two circular objects of different sizes
A straight, slanted surface, which facilitates the raising of…
Lever
A bar that pivots at a fixed point
Pulley
A wheel over which a rope, chain, or wire passes
27 terms
Simple Machines and Mechanical Advantage
Effort
Force
Resistance
Mechanical Advantage
the amount of force used
a push or pull exerted on an object to change the objects vel…
the weight that is lifted
the amount by which force or motion is magnified in simple ma…
Effort
the amount of force used
Force
a push or pull exerted on an object to change the objects vel…
44 terms
Mechanical comprehension simple machines
mechanical advantage
incline plane
simple machines
wedge
Ratio of the output force exerted by a machine to the input f…
a sloping surface, such as a ramp, that reduces the amount of…
a machine with few moving parts, making it easier to do work…
is a variation of the inclined plane. it can be used for lift…
mechanical advantage
Ratio of the output force exerted by a machine to the input f…
incline plane
a sloping surface, such as a ramp, that reduces the amount of…
simple machines/ mechanical advantage
input, length
output, height
MA= de/dr
Ma=fr/fe
effort
resistance
distance
force
input, length
effort
output, height
resistance
10 terms
Mechanical Advantage/Simple Machines
Frist class lever
Second class lever
Third class lever
Gear
Fulcrum is in between the output and input (input distance ov…
Output is in between the fulcrum and input (input distance ov…
Input is in between the output and fulcrum (input distance ov…
(Number of teeth on the output gear over number of teeth on t…
Frist class lever
Fulcrum is in between the output and input (input distance ov…
Second class lever
Output is in between the fulcrum and input (input distance ov…
13 terms
Simple Machines/Mechanical Systems
Class 1 Lever
Class 2 Lever
Class 3 Lever
Mechanical Advantage for Gears
A lever in which the fulcrum is between the load and the effo…
A lever in which the load is between the fulcrum and the effo…
A lever in which the effort is between the fulcrum and the lo…
Divide the number of driven teeth by the driver teeth.
Class 1 Lever
A lever in which the fulcrum is between the load and the effo…
Class 2 Lever
A lever in which the load is between the fulcrum and the effo…
7 terms
Simple Machines Mechanical Advantages
pulleys
inclined plane
levers
wheels and axles
number of times rope touches object being lifted
length/height
effort arm(EA)/resistance
radius of wheel/radius of axle
pulleys
number of times rope touches object being lifted
inclined plane
length/height
12 terms
Simple Machines and Mechanical Advantage
machine
work input
work output
simple machine
a device with moving parts that work together to accomplish a…
the work or energy supplied to the process (or machine)
the work or energy that comes out of the process (or machine)
an unpowered mechanical device
machine
a device with moving parts that work together to accomplish a…
work input
the work or energy supplied to the process (or machine)
Simple Machines- Mechanical Advantage
Levers
Wheel & Axel
Pulleys
Inclined Plane and Wedge
Mechanical Advantage= ... Distance from fulcrum to Effort ÷... dist…
Mechanical Advantage=... Diameter of wheel ÷ Diameter of axel
Mechanical Advantage=... Number of pulleys used
Mechanical Advantage=... Length of slope ÷ Height
Levers
Mechanical Advantage= ... Distance from fulcrum to Effort ÷... dist…
Wheel & Axel
Mechanical Advantage=... Diameter of wheel ÷ Diameter of axel
42 terms
Simple Machines--Mechanical Advantage
mechanical advantage
mechanical advantage
work
W (joules) = F (newtons) x D (meters)
output force divided by input force
the increase in work enabled by a machine
force x distance
What units are used for work = force x distance
mechanical advantage
output force divided by input force
mechanical advantage
the increase in work enabled by a machine
25 terms
Work, Simple Machines, Mechanical Advantage
force
Newton
power
load
a push or pull
unit of measure for force
how fast work is done
a weight or mass that is a machine is putting its force on
force
a push or pull
Newton
unit of measure for force
Simple machines and Mechanical Advantage
SAWLIP
Machine
Simple Machine
Mechanical Advantage
Screw, Wheel and Axle, Wedge, Lever, Ramp or Incline, Pulley
anything that has moving parts and can perform a task (can do…
a device that accomplishes a task with one simple motion and…
tells us how much advantage is given OR how much a machine mu…
SAWLIP
Screw, Wheel and Axle, Wedge, Lever, Ramp or Incline, Pulley
Machine
anything that has moving parts and can perform a task (can do…
Mechanical Advantage of Simple Machines
Lever
Wheel and Axle
Pulley
Inclined Plane
Ratio of length of applied force/ ratio of length of resistan…
Radius of wheel/ radius of axle (Depends on which one is bein…
Number of Ropes going in direction of the pulley
Slope/ height
Lever
Ratio of length of applied force/ ratio of length of resistan…
Wheel and Axle
Radius of wheel/ radius of axle (Depends on which one is bein…
6 terms
Mechanical Advantage of Simple Machines
Inclined plane
Wedge
Screw
Lever
Length of _______/Height of _______
Length of _____/Width of _____
Length around threads/Length of _____
Distance from fulcrum to input force/Distance from fulcrum to…
Inclined plane
Length of _______/Height of _______
Wedge
Length of _____/Width of _____
12 terms
Mechanical advantages for simple machines
MAd
MAf
MAs
Dl
Is the distance Mechanical Advantage
Is the force Mechanical Advantage
Is the speed Mechanical Advantage
Is the distance the load moves or the output distance
MAd
Is the distance Mechanical Advantage
MAf
Is the force Mechanical Advantage
18 terms
Simple Machines and Mechanical Advantage
Screw
Mechanical Advantage of Screw
Does Screw Allow Less Force
Wedge
Like an inclined plane, with a wedge at the tip
Find circumference to which effort is applied, divided by pit…
Depends on how steep thread is; more steep-more force, less s…
Inclined plane turned on the side, instead of helping move th…
Screw
Like an inclined plane, with a wedge at the tip
Mechanical Advantage of Screw
Find circumference to which effort is applied, divided by pit…
7 terms
Mechanical Advantages of Simple Machines
What is mechanical advantage?
MA of a lever (equation)
MA of a pulley (equation)
MA of a wedge (equation)
the number of times a machine multiplies the force
length of effort arm divided by length of resistant arm
the more rope segments wrapped around, the higher the mechani…
length of wedge divided by the greatest thickness
What is mechanical advantage?
the number of times a machine multiplies the force
MA of a lever (equation)
length of effort arm divided by length of resistant arm
mechanical advantage for simple machines
Mechanical advantage for a lever
Mechanical advantage for wheel and axle
Mechanical advantage for pulleys in a…
mechanical advantage for inclined plai…
Distance from fulcrum to effort ÷ distance from fulcrum to re…
diameter of the wheel ÷ diameter of axle
number of pulleys used
length of slope ÷ height
Mechanical advantage for a lever
Distance from fulcrum to effort ÷ distance from fulcrum to re…
Mechanical advantage for wheel and axle
diameter of the wheel ÷ diameter of axle
8 terms
Simple Machines and Mechanisms
lever
wheel and axle
wedge
screw
a bar that pivots about a fixed point when an effort is appli…
usually a circular object, often a big wheel and a smaller ax…
a modification of the inclined plane, a wedge is movable
another modification of the inclined plane, threads wrap arou…
lever
a bar that pivots about a fixed point when an effort is appli…
wheel and axle
usually a circular object, often a big wheel and a smaller ax…
Simple Machines & Mechanical Advantage
How does a lever work?
How does a pulley work?
How does a screw work?
How does a wedge work?
Downward motion at one end results in upward motion at the ot…
Reverses the direction of the input force
converts rotary motion into forward or backward motion
converts motion in one direction into splitting motion that a…
How does a lever work?
Downward motion at one end results in upward motion at the ot…
How does a pulley work?
Reverses the direction of the input force
22 terms
Mechanical Advantage and Simple Machines
Mechanical advantage
Equation for mechanical advantage
What is the unit for Mechanical Advant…
simple machines
Ratio between the output and input force
MA=output force/input force OR input distance/output distance
None
Basis for all other forms of machines
Mechanical advantage
Ratio between the output and input force
Equation for mechanical advantage
MA=output force/input force OR input distance/output distance
17 terms
Mechanisms and Simple Machines
mechanical advantage
IMA
AMA
lever
ratio of resistance to effort
distance traveled by effort and resistance force
force magnitudes
a rigid bar used to exert a pressure or sustain a weight at o…
mechanical advantage
ratio of resistance to effort
IMA
distance traveled by effort and resistance force
Simple Machines, mechanical advantage, efficiency
What is Work?
How is Work Calculated?
How does a lever work?
How does a pulley work?
Work is done when a net force acts on an object and the objec…
Work = force x distance
Downward motion at one end results in upward motion at the ot…
Reverses the direction of the input force
What is Work?
Work is done when a net force acts on an object and the objec…
How is Work Calculated?
Work = force x distance
29 terms
Forces, Simple Machines and Mechanical Advantage
Force
Net force
Balanced force
Unbalanced force
any push or pull acting on an object
the total of all forces acting on an object
when the net force = 0 N, forces are considered balanced, and…
when the net force </> 0 N, the forces are unbalanced and cau…
Force
any push or pull acting on an object
Net force
the total of all forces acting on an object
Simple Machines and Mechanical Advantage
Work
Power
Mechanical Advantage
Lever
...
...
...
A simple machine made up of a bar that pivotes, or rotates, a…
Work
...
Power
...
27 terms
Mechanical Energy, Generators and Simple Machines
Mechanical Energy
PE + KE = ME
Thermal
Michael Faraday
the sum of potential and kinetic energy
How do you find Mechanical Energy?
Which form of energy is almost always produced as a result of…
Who discovered that a magnet can be used to produce electrici…
Mechanical Energy
the sum of potential and kinetic energy
PE + KE = ME
How do you find Mechanical Energy?
19 terms
Mechanical Advantage and six simple machines
Ideal Mechanical Advantage of a pulley
Ideal Mechanical Advantage of a lever
Ideal Mechanical Advantage of a ramp
Ideal Mechanical Advantage of a screw
number of supporting strands
input lenght from fulcrum over output lenghth from fulcrum
lenghth of incline over height of incline
lenghth of thread over height of screw
Ideal Mechanical Advantage of a pulley
number of supporting strands
Ideal Mechanical Advantage of a lever
input lenght from fulcrum over output lenghth from fulcrum
6 terms
Simple machine Mechanical advantages
Incline plane mechanical advantage
Lever mechanical advantage
Wedge mechanical advantage
Screw mechanical advantage
MA= length ÷ height
Force output = distance output = force input × distance input
MA= Length ÷ thickness
MA= circumference ÷ # of turns per in.
Incline plane mechanical advantage
MA= length ÷ height
Lever mechanical advantage
Force output = distance output = force input × distance input
16 terms
Simple Machines & Mechanical Advantages
Lever (Plus Formula for Mechanical Adv…
First Class Lever
Second Class Lever
Third Class Lever
Rigid object that can turn on a fixed point (fulcrum)... MA=load…
Load and effort on outside, fulcrum in the middle. Different…
Fulcrum and effort on outside, load in middle.
Fulcrum and load on outside, effort in middle.
Lever (Plus Formula for Mechanical Adv…
Rigid object that can turn on a fixed point (fulcrum)... MA=load…
First Class Lever
Load and effort on outside, fulcrum in the middle. Different…
11 terms
Mechanical advantage and simple machines
how many different kinds of simple mac…
what are the six different kinds of si…
formula for mechanical advantage of a…
formula for mechanical advantage of in…
six
lever, wedge, pulley, inclined plane, wheel and axle, and screw
resistance divided by effort or length of effort arm divided…
length of slope divided by height of slope
how many different kinds of simple mac…
six
what are the six different kinds of si…
lever, wedge, pulley, inclined plane, wheel and axle, and screw
5 terms
simple machines and mechanisms
efficiency
useful output work
work by friction
calculating efficiency
determined by analyzing the energies involved.
the work that the machine is designed to perform.
forces of friction are present in every machine
= useful output work (joules) X 100% / input work (joules)
efficiency
determined by analyzing the energies involved.
useful output work
the work that the machine is designed to perform.
19 terms
Work, Simple Machines, Mechanical Advantage
force
Newton
power
energy
a push or pull that has the ability to change motion
the metric unit for force
the ability to do or act; strength, might, and force
the physical capacity to perform work
force
a push or pull that has the ability to change motion
Newton
the metric unit for force
17 terms
Simple Machines, mechanical advantage, efficiency
What is Work?
How is Work Calculated?
How does a lever work?
How does a pulley work?
Work is done when a net force acts on an object and the objec…
Work = force x distance
Downward motion at one end results in upward motion at the ot…
Reverses the direction of the input force
What is Work?
Work is done when a net force acts on an object and the objec…
How is Work Calculated?
Work = force x distance
22 terms
Mechanical Advantage and six simple machines
Ideal Mechanical Advantage of a pulley
Ideal Mechanical Advantage of a lever
Ideal Mechanical Advantage of a ramp
Ideal Mechanical Advantage of a screw
number of supporting strands
input lenght from fulcrum over output lenghth from fulcrum
lenghth of incline over height of incline
lenghth of thread over height of screw
Ideal Mechanical Advantage of a pulley
number of supporting strands
Ideal Mechanical Advantage of a lever
input lenght from fulcrum over output lenghth from fulcrum
16 terms
Mechanical Advantage and six simple machines
Ideal Mechanical Advantage of a pulley
Ideal Mechanical Advantage of a lever
Ideal Mechanical Advantage of a ramp
Ideal Mechanical Advantage of a screw
number of supporting strands
input lenght from fulcrum over output lenghth from fulcrum
lenghth of incline over height of incline
lenghth of thread over height of screw
Ideal Mechanical Advantage of a pulley
number of supporting strands
Ideal Mechanical Advantage of a lever
input lenght from fulcrum over output lenghth from fulcrum
11 terms
Simple Machines - Gaining the Mechanical Advantage
Effort
Load
Resistance
Mechanical Advantage (MA)
The force applied to the machine
The object attached to the machine
The force of the load on the machine
= Force (output) / Force (input)
Effort
The force applied to the machine
Load
The object attached to the machine
6 terms
Mechanical Advantage and six simple machines
Ideal Mechanical Advantage of a pulley
Ideal Mechanical Advantage of a lever
Ideal Mechanical Advantage of a ramp
Ideal Mechanical Advantage of a screw
number of supporting strands
input lenght from fulcrum over output lenghth from fulcrum
lenghth of incline over height of incline
lenghth of thread over height of screw
Ideal Mechanical Advantage of a pulley
number of supporting strands
Ideal Mechanical Advantage of a lever
input lenght from fulcrum over output lenghth from fulcrum
13 terms
Mechanical Advantage and Six Simple machines
Mechanical Advantage of a Pulley
Mechanical Advantage of a lever
Mechanical Advantage of a ramp
Mechanical Advantage of a screw
number of supporting strands (do not count the rope you pull…
input length from fulcrum over output length from fulcrum
length of incline over height of incline
length of thread over height of screw
Mechanical Advantage of a Pulley
number of supporting strands (do not count the rope you pull…
Mechanical Advantage of a lever
input length from fulcrum over output length from fulcrum
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