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Q: Does the tension in the string of a swinging pendulum do any work?
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How tension in string is nonconservative force?

No, the force in tension of a string is not conservative. The only non-conservative force acting is the tension force, but it acts perpendicular to the path of the object at every instant, and so it does zero work.


How does each part of the pendulum work?

A pendulum could be almost anything, even a soap on a string. They're not picky, so I can't really say I know how each part works.


What variables affect how fast a pendulum swings?

The simple answer (what most high school teachers, for example, would say)is that the period (length of time for a swing) only depends on the length of thependulum. This is a pretty good approximation for a well-made pendulum.============================When you sit down to work out the period of a pendulum on paper, you draw a mass,hanging in gravity, from the end of a string that has no weight, with no air around it.When you turn the crank, you discover that the period of the pendulum ... the timeit takes for one complete back-and-forth swing ... depends only on the length ofthe string and the local acceleration of gravity, and that the pendulum never stops.When you build the real thing, you discover that your original analysis is a little bit 'off'.Your physical pendulum always stops after a while, and while it's still going, theperiod is slightly different from what you calculated. So you begin to do researchexperiments to figure out why.Eventually, you figure out that the weight of the string makes the effective lengthof the pendulum different from the actual length of the string, and that the pendulumloses energy and stops because it has to plow through air.What you do to reduce these influences:-- You use the lightest, strongest string you can find, and the heaviest mass thatthe string can hold, so that the mass at the end is huge compared to the mass ofthe string.-- You operate the whole pendulum in an evacuated tube ... with all the air pumped out.When you do that, you have a pendulum that's good enough, and close enoughto the theoretical calculation, that you can use it to measure the acceleration ofgravity in different places.


How can you relate the pendulum in daily life?

The pendulum appears everywhere in daily life..and you may not realize it. 1. Of course there is the Grandfather Clock and all other Pendulum clocks. 2. The next most commonly seen pendulum is the kiddie swing. Actually a tandem pendulum. One of the biggest errors in installing a tree mounted swing is to have two different length support chains. The two pendulums will swing with different (time) periods, swinging crookedly cock-eyed. 3. Automobiles have used a Pendulum mechanism to sense a crash and lock up the seat belts. The mechanism is installed in the door pillar with the seat belt retracter. 4. The "Door Knocker" on a front door is a form of Pendulum. Not free swinging, but static against the door, until 'knocked'. 5. Oh, don't forget the Metronome, an Inverted Pendulum. 6. The combination of Pendulum and Clockwork appears in other places as well. Think of the 'Old - Style' car bumper jack. The handle is the pendulum, and the notches and mechanism on the vertical riser is the clockwork. Work the handle and the jack goes up or down.


How does the Foucault pendulum work?

The Foucault Pendulum experiment proves that the Earth rotates beneath the pendulum, which proved that the Earth rotates. If one were to make a pendulum on the equator it would not work because it doesnt rotate at that point of the Earth.

Related questions

Why doesn't a pendulum keep swinging forever?

Most pendulums are operated by a spring, when the spring looses its tention it can no longer keep the pendulum swinging. Others may work on a different system but the system in not perpetual and will loose its ability to keep the pendulum swinging. As a point of interest you canot use a pendulum in space.


Why doesn't a pendulum keeps on swinging forever?

Most pendulums are operated by a spring, when the spring looses its tention it can no longer keep the pendulum swinging. Others may work on a different system but the system in not perpetual and will loose its ability to keep the pendulum swinging. As a point of interest you canot use a pendulum in space.


Does the string that supports a pendulum bob do work on the bob as it swings to and fro?

No. Work is force times displacement. Even though the pendulum moves, it has zero displacement in the direction of the force imparted by the string.


Why do all pendulums swing at the same speed?

Most pendulums are operated by a spring, when the spring looses its tention it can no longer keep the pendulum swinging. Others may work on a different system but the system in not perpetual and will loose its ability to keep the pendulum swinging. As a point of interest you canot use a pendulum in space.


How tension in string is nonconservative force?

No, the force in tension of a string is not conservative. The only non-conservative force acting is the tension force, but it acts perpendicular to the path of the object at every instant, and so it does zero work.


How does each part of the pendulum work?

A pendulum could be almost anything, even a soap on a string. They're not picky, so I can't really say I know how each part works.


No work is done on an object unless there is a force along its direction of motion This being so does the string that supports the pendulum bob do work on the bob as it swings to and fro?

billy joe


What are the disadvantages of simple pendulum?

The simple pendulum model does not take into account some factors that affect actual pendulums. It is a close approximation in many cases. The formulas are much simpler than the formulas for the actual motion of the pendulum. That's why it's called simple. But if the 'swinging angle' is too large the simpler formulas are no longer accurate. Also if the rod, which the pendulum is suspended on, has too large a mass in relation to the pendulum weight, then the simple formulas won't work.


Why don't pendulum clocks work at sea?

why pendulum clocks dont work at sea


What variables affect how fast a pendulum swings?

The simple answer (what most high school teachers, for example, would say)is that the period (length of time for a swing) only depends on the length of thependulum. This is a pretty good approximation for a well-made pendulum.============================When you sit down to work out the period of a pendulum on paper, you draw a mass,hanging in gravity, from the end of a string that has no weight, with no air around it.When you turn the crank, you discover that the period of the pendulum ... the timeit takes for one complete back-and-forth swing ... depends only on the length ofthe string and the local acceleration of gravity, and that the pendulum never stops.When you build the real thing, you discover that your original analysis is a little bit 'off'.Your physical pendulum always stops after a while, and while it's still going, theperiod is slightly different from what you calculated. So you begin to do researchexperiments to figure out why.Eventually, you figure out that the weight of the string makes the effective lengthof the pendulum different from the actual length of the string, and that the pendulumloses energy and stops because it has to plow through air.What you do to reduce these influences:-- You use the lightest, strongest string you can find, and the heaviest mass thatthe string can hold, so that the mass at the end is huge compared to the mass ofthe string.-- You operate the whole pendulum in an evacuated tube ... with all the air pumped out.When you do that, you have a pendulum that's good enough, and close enoughto the theoretical calculation, that you can use it to measure the acceleration ofgravity in different places.


How can you relate the pendulum in daily life?

The pendulum appears everywhere in daily life..and you may not realize it. 1. Of course there is the Grandfather Clock and all other Pendulum clocks. 2. The next most commonly seen pendulum is the kiddie swing. Actually a tandem pendulum. One of the biggest errors in installing a tree mounted swing is to have two different length support chains. The two pendulums will swing with different (time) periods, swinging crookedly cock-eyed. 3. Automobiles have used a Pendulum mechanism to sense a crash and lock up the seat belts. The mechanism is installed in the door pillar with the seat belt retracter. 4. The "Door Knocker" on a front door is a form of Pendulum. Not free swinging, but static against the door, until 'knocked'. 5. Oh, don't forget the Metronome, an Inverted Pendulum. 6. The combination of Pendulum and Clockwork appears in other places as well. Think of the 'Old - Style' car bumper jack. The handle is the pendulum, and the notches and mechanism on the vertical riser is the clockwork. Work the handle and the jack goes up or down.


How does the Foucault pendulum work?

The Foucault Pendulum experiment proves that the Earth rotates beneath the pendulum, which proved that the Earth rotates. If one were to make a pendulum on the equator it would not work because it doesnt rotate at that point of the Earth.