Table of Contents
- 1 What kind of pulley is used to raise or lower a flag down a pole?
- 2 When you raise or lower a flag on a flagpole you are using a an?
- 3 What is the difference between fixed and movable pulley?
- 4 How does a flagpole helps you in doing work?
- 5 What to look for when rigging a flagpole?
- 6 How tall should a flag be on a flag pole?
What kind of pulley is used to raise or lower a flag down a pole?
A fixed pulley’s wheel and axle stay in one place. A good example of a fixed pulley is a flag pole: When you pull down on the rope, the direction of force is redirected by the pulley, and you raise the flag.
When you raise or lower a flag on a flagpole you are using a an?
Work and Machines
Question | Answer |
---|---|
When you raise or lower a flag on a flagpole, you are using a… | pulley |
What do machines do? | change the amount of force you exert or the distance over which you exert the force |
Power is measured in units called… | watts |
An ideal machine would have an efficiency of… | 100% |
What type of simple machine is raising a flag?
pulley
A pulley is a simple machine that is used to raise and lower a load. There are many examples of pulleys in everyday life. However, a flag pole is a simple example. A flagpole uses a pulley to raise a flag far above your head.
Is a flagpole an axle or wheel?
Examples of a wheel and axle are the wheels of a bicycle, car and truck. A rope passing over a wheel is tied to the load to be lifted, and a pull is applied to the other end of the rope. An example of a pulley at school is the flag pole.
What is the difference between fixed and movable pulley?
fixed pulley: A pulley system in which the pulley is attached to a fixed point and the rope is attached to the object. movable pulley: A pulley system in which the pulley is attached to the object; one end of the rope is attached to a fixed point and the other end of the rope is free.
How does a flagpole helps you in doing work?
When you pull down on the rope of a flagpole, the flag goes up the pole to wave in the air. That’s because a flagpole has a pulley on it. By using pulleys to redirect force, a stone could be lifted off the ground, allowing more people to grab on to the rope, and adding weight so workers have to pull less.
Is a car a complex machine or a simple machine?
Cars are considered complex machines because they have motors and are composed of several simple machines to help make them run. Let’s explore the six types of simple machines that we see in cars: inclined planes, levers, pulleys, wedges, wheels and axles, and screws.
What’s the easiest way to raise the flag?
Raise the flag to the truck (the flagpole top-piece) then lower the flag to half mast. What simple machine is a flag pole? Is a flag pole a simple machine or inclined planes?
What to look for when rigging a flagpole?
These two elements combined help disperse the stress and the rope wears evenly. The canvas header is not stretchy and has no braid. Make sure your flagpole has a continuous line of halyard or cable from all anchor points, whether that is a cleat (as in the video), a winch, or a weight.
How tall should a flag be on a flag pole?
*As a rule of thumb, when flying one flag on a pole, the flag length should be a quarter the height of the flagpole. These are recommended sizes without any obstruction to flagpoles.
What kind of machine is used to raise the flag?
That’s where the name comes from ‘haul+yard’ = Halliard.When you pull down on the rope, the flag goes up.What kind of simple machine would help you do this?Hint: What does the rope pass through at the top of the flagpole?A pulley. What is the simple machine used to the flag?