Embedded Files
1L: Notes Handouts
1L: Notes Handouts
Bill Nye- Simple Machines.pdf
LEGO Machines & Mechanisms Building Instructions
LEGO Machines & Mechanisms Building Instructions
1 LA (Lesson Activity) Sweeper
1 LA (Lesson Activity) Sweeper
sweeperteachersguide.pdfGears
Gears
9689_3_3_1_PrincipleModels_TN.pdfCopy of 9689_3_1_Overview.pdfCopy of 9689_3_4_1_MainModel_TN.pdfPulleys
Pulleys
A pulley is a simple machine designed to increase lift strength using a grooved wheel and a cord, rope or chain. These useful devices are applied often in modern-day machinery, with numerous examples of pulleys found in your community. Be on the lookout for pulleys in use in your everyday lives.
A pulley is a simple machine designed to increase lift strength using a grooved wheel and a cord, rope or chain. These useful devices are applied often in modern-day machinery, with numerous examples of pulleys found in your community. Be on the lookout for pulleys in use in your everyday lives.
https://sciencing.com/examples-pulleys-everyday-life-7231681.html
1. Requires 100 pounds of Force to Lift a 100 pound object -----Need to Pull rope the same distance as desired lift.
2. Requires 50 pounds of Force to Lift a 100 pound object ----Need to Pull rope TWICE the distance as desired lift.
3. Requires 33-1/3 pounds of Force to Lift a 100 pound object ----Need to Pull rope THREE TIMES the distance as desired lift.
4. Requires 25 pounds of Force to Lift a 100 pound object ----Need to Pull rope FOUR TIMES the distance as desired lift.
Elevators
Elevators
Elevators use a powerful electronic pulley system. In fact, elevators use a system of several pulleys and counterweights to provide the lift system with both power and safety. Some building designers like to create designs in which you can see the internal machinery of the elevator; if you find yourself looking at a visible elevator shaft, look for the thick, steel cables sliding through the drums and pulley systems to lift the platform box.
Elevators use a powerful electronic pulley system. In fact, elevators use a system of several pulleys and counterweights to provide the lift system with both power and safety. Some building designers like to create designs in which you can see the internal machinery of the elevator; if you find yourself looking at a visible elevator shaft, look for the thick, steel cables sliding through the drums and pulley systems to lift the platform box.
Safety
Safety
Window Washers use pulleys to lower themselves down the building safely, cleaning along the way.
Window Washers use pulleys to lower themselves down the building safely, cleaning along the way.
Exercise Machines
Exercise Machines
Sailing Ships
Sailing Ships
Construction & Machinery
Construction & Machinery
Construction pulleys are some of the most basic and common pulleys, good for viewing the basic functioning of this simple machine. These pulleys consist of a wheel track that can be raised to great heights, fitted with chains or rope attached to hooks. These pulleys allow equipment to be raised or lowered to workers at construction sites so that they don't have to climb up and down in order to get tools or materials they need.
Construction pulleys are some of the most basic and common pulleys, good for viewing the basic functioning of this simple machine. These pulleys consist of a wheel track that can be raised to great heights, fitted with chains or rope attached to hooks. These pulleys allow equipment to be raised or lowered to workers at construction sites so that they don't have to climb up and down in order to get tools or materials they need.
Theatre
Theatre
In theatres, curtains and fly systems (rigging) operate using a system of multiple pulleys. These pulleys are located high above the stage where the audience cannot see them and operated from the side of the stage to raise and lower curtains and pieces of scenery during a theatrical performance.
In theatres, curtains and fly systems (rigging) operate using a system of multiple pulleys. These pulleys are located high above the stage where the audience cannot see them and operated from the side of the stage to raise and lower curtains and pieces of scenery during a theatrical performance.
Now it's your turn to build and test a LEGO model version.
Now it's your turn to build and test a LEGO model version.
Pulley Model Instructions.pdfStudent A pulley model.pdfLEGO Machines & Mechanisms Building Instructions
LEGO Machines & Mechanisms Building Instructions
L4 Pulley_Crazy Floors.pdfStudent B CrazyFloorsPulley.pdfD 7
D 7
D 6
D 6
Be sure to observe the differences and write down on your reflection sheet what is different and how it changes the way it works.
Be sure to observe the differences and write down on your reflection sheet what is different and how it changes the way it works.
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