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In practice (as opposed to theory) not only the force of gravity from the earth but all matter in the pendulum's vicinity. The drag caused by air on the pendulum shaft and weight, the friction in the suspension, the Coriolis effect...

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14y ago
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15y ago

Set the pendulum swinging, with only a very small initial angular displacement. Measure the time taken to complete a certain number of oscillations, and then establish the average duration T of an oscillation. If the length of the pendulum is L, then gravitational field strength g is approximated by g = ~4pi2L/T2 This result derives from the modelling of the pendulum as a simple harmonic oscillator; for this to be a realistic model, the amplitude of oscillations must be small.

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10y ago

If you mean to calculate the value for acceleration, use the formula for a simple pendulum. Solve for gravitational acceleration. Measure the time period of a simple pendulum, replace in the formula, and do the calculations.

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12y ago

Knowing mass and period of vibrations it's very easy to do using formula for pendulum.

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12y ago

speed is the ratio of distance to time.find the disatnce covered in on oscillation divide it by the time period.

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Q: How would you determine the value of gravity using a pendulum?
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How to determine the value of g?

That can be determined fairly easily with a pendulum. The period of the pendulum depends on the length of the pendulum and the value of "g".


Why is a pendulum important?

A pendulum isn't needed to illustrate gravity, and is seldom used for that purpose.It's much easier to illustrate gravity by dropping a book on the floor.But a pendulum is a very useful means of measuring the value of gravity in a place,because the time that a pendulum takes to swing back-and-forth once is very closelyconnected to the local value of gravity. It doesn't depend on the weight of the thinghanging at the end of the string at all ... only on the length of the string and the localvalue of gravity.


What will happen to value of g if compound pendulum is taken nearer to the centre of the earth?

The acceleration of gravity decreases as the observation point is taken deeper beneath the surface of the Earth, but it's not the location of the compound pendulum that's responsible for the decrease.


What will happen to the value of g if the compound pendulum is taken nearer to the centre of earth?

The acceleration of gravity (value of 'g') is maximum on the earth's surface, and it decreases from there in both directions ... up into the air or down into the earth.


What is the length of simple pendulum which ticks seconds?

What you want is a pendulum with a frequency of 1/2 Hz. It swings left for 1 second,then right for 1 second, ticks once in each direction, and completes its cycle in exactly2 seconds.The length of such a pendulum technically depends on the acceleration due to gravityin the place where it's swinging. In fact, pendulum arrangements are used to measurethe local value of gravity.A good representative value for the length of the "seconds pendulum" is 0.994 meter.

Related questions

How to determine the value of g?

That can be determined fairly easily with a pendulum. The period of the pendulum depends on the length of the pendulum and the value of "g".


To determine the value of g acceleration due to gravity by means of an angular pendulum?

The period (time) of one swing of a pendulum is(2 pi) times the square root of (pendulum length / acceleration of gravity). There are three variables in this formula ... the length of the pendulum, the period of itsswing, and the acceleration of gravity. If you know any two of them, you can calculate thethird one. You want to use this method to measure gravity ? Fine ! Massage the formulaaround to this form Acceleration of gravity = (length of the pendulum) times (2 pi/period)2 then start measuring and swinging.The more accurately you can measure the length of your pendulum, from the pivotto the center of mass of everything that swings, and the period of its swing, and themore completely you can isolate everything from outside influences, like air currents,the more accurately you can calculate the acceleration of gravity, in the exact place whereyou run the experiment.


To determine the value of g acceleration due to gravity by means of a compound pendulum?

you can also use a simple pendulum to do it. your brain is full of problems if you cant do it by the easier wayForget thatgo on to this site and it gives you a method/procedure also go through www.phy.iitkgp.ernet.in/1styr/11-compound-pendulum.pdf


Why is a pendulum important?

A pendulum isn't needed to illustrate gravity, and is seldom used for that purpose.It's much easier to illustrate gravity by dropping a book on the floor.But a pendulum is a very useful means of measuring the value of gravity in a place,because the time that a pendulum takes to swing back-and-forth once is very closelyconnected to the local value of gravity. It doesn't depend on the weight of the thinghanging at the end of the string at all ... only on the length of the string and the localvalue of gravity.


How would the time period of a simple pendulum clock be affected if it were on the moon instead of the earth?

The time period of a pendulum would increases it the pendulum were on the moon instead of the earth. The period of a simple pendulum is equal to 2*pi*√(L/g), where g is acceleration due to gravity. As gravity decreases, g decreases. Since the value of g would be smaller on the moon, the period of the pendulum would increase. The value of g on Earth is 9.8 m/s2, whereas the value of g on the moon is 1.624 m/s2. This makes the period of a pendulum on the moon about 2.47 times longer than the period would be on Earth.


A pendulum of the length L is suspended from the ceiling of an elevetor. When the elevator is at rest the period of pendulum is T. What is the period of the pendulum if the elevator is freely falling?

A lift in free fall is the same as a lift with no gravity (e.g. in space), i.e. accelleration due to gravity, g = 0 ms^-2. Now your intuition should tell you what's going to happen but even if it doesn't you can plug this value into your equation for the pendulum's period to find out what happens.


What will happen to value of g if compound pendulum is taken nearer to the centre of the earth?

The acceleration of gravity decreases as the observation point is taken deeper beneath the surface of the Earth, but it's not the location of the compound pendulum that's responsible for the decrease.


What will happen to the value of g if the compound pendulum is taken nearer to the centre of earth?

The acceleration of gravity (value of 'g') is maximum on the earth's surface, and it decreases from there in both directions ... up into the air or down into the earth.


What is the length of simple pendulum which ticks seconds?

What you want is a pendulum with a frequency of 1/2 Hz. It swings left for 1 second,then right for 1 second, ticks once in each direction, and completes its cycle in exactly2 seconds.The length of such a pendulum technically depends on the acceleration due to gravityin the place where it's swinging. In fact, pendulum arrangements are used to measurethe local value of gravity.A good representative value for the length of the "seconds pendulum" is 0.994 meter.


How do you determine the Material value of packaging?

By using the hammer of dawn


How do free cashflows and weighted average cost of capital interact to determine a firms value?

they interact because of the gravity


To determine the value of a LIFO layer using dollar-value LIFO retail method you would?

b