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Pulleys in Everyday Life

Pulleys in Everyday Life . Let’s look at some places we use pulleys. CONSTRUCTION. A crane uses a single pulley Uses gears to help move the crane around. MECHANIC. Uses pulley to lift heavy items out of cars. CAR ENGINE.

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Pulleys in Everyday Life

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  1. Pulleys in Everyday Life Let’s look at some places we use pulleys

  2. CONSTRUCTION • A crane uses a single pulley • Uses gears to help move the crane around

  3. MECHANIC • Uses pulley to lift heavy items out of cars

  4. CAR ENGINE • This is a serpentine belt that moves around inside an engine to help a car move; it moves on pulleys

  5. LOADING DOCKS • Machines similar to cranes help lift and lower large shipping containers onto and off of ships

  6. WELL • In many places where there is no water, they use a well • Pulley is at the top and used to lift and lower water bucket

  7. GYM • Weight machines have visible pulleys to help lift and lower the weights • Other machines like a treadmill or stationary bike also use pulleys to allow the parts to move

  8. CLOTHESLINE • Many people choose to hang their laundry to dry instead of using a dryer • Pulley system allows them to hang clothes on the line, and pull the rope along to get empty rope or collect the dry clothes

  9. TOW TRUCK • Uses a pulley on the hitch to lift cars • Also needs gears and a motor to lift

  10. CURTAINS • Uses pulleys to open and close

  11. ROCK CLIMBING • Uses pulleys to help lift themselves up steep rock faces

  12. WINDOW WASHER • Uses pulleys to move up and down the sides of building to wash windows • Painters also use these when painting areas out of ladder reach

  13. MOVIE PROJECTOR • This is an old one, but similar ones are still used in movie theatres • Film passes over two large pulleys as light passes through the film to display the images that move together to make a movie

  14. DRAWBRIDGES • Pulleys used to move cables, working with gears and a motor, to lift a bridge

  15. FLAGPOLE • Uses pulleys to lift and lower flags

  16. ELEVATORS • Pulleys used to allows metal cable to move elevator up and down with the help of a counterweight and a motor

  17. SAILS • Boats with sails need pulleys to lift the sails and to move them around

  18. FISHING • Fishermen who fish commercially use large nets that are brought in using a pulley

  19. Pulleys are used in many ways all around us! • Without them, some tasks would be much more difficult or could not happen at all! • Pulleys allows lifting, lowering, and some movement to be made easier • Pulleys must be strong and not produce too much friction for the cables passing over them • Pulleys can be fixed (attached to something) or not • Combining pulleys requires less force (more pulleys = less work)

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