# Question: Why Do We Take Small Amplitude?

## How does amplitude affect pendulum?

The greater the amplitude, or angle, the farther the pendulum falls; and therefore, the longer the period.) …

Since the force of gravity is less on the Moon, the pendulum would swing slower at the same length and angle and its frequency would be less.).

## Does period depend on length?

The period of a pendulum does not depend on the mass of the ball, but only on the length of the string. Two pendula with different masses but the same length will have the same period. Two pendula with different lengths will different periods; the pendulum with the longer string will have the longer period.

## What is the relationship between amplitude and period?

Amplitude: The distance from the center of motion to either extreme. Period: The amount of time it takes for one complete cycle of motion.

## What is period of oscillation?

the smallest interval of time in which a system undergoing oscillation returns to the state it was in at a time arbitrarily chosen as the beginning of the oscillation.

## Does period affect mass?

The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity. The period is completely independent of other factors, such as mass.

## Do heavier pendulums swing faster?

The longer the pendulum, whether it is a string, metal rod or wire, the slower the pendulum swings. Conversely the shorter the pendulum the faster the swing rate. … On grandfather clocks with long pendulums or clocks with shorter ones, the swing rate depends upon the pendulum’s length.

## What will be the effect of the time period if the amplitude of a simple pendulum increases?

We know that time period of a simple pendulum is independent of amplitude of vibration so long as its motion is simple harmonic, i.e., restoring force is linear. If amplitude of a simple pendulum increases In this situation the motion of simple pendulum will be oscillatory but not simple harmonic.

## How do you find the amplitude of a pendulum?

The formula is t = 2 π √ l / g . This formula provides good values for angles up to α ≤ 5°. The larger the angle, the more inaccurate this estimation will become. From the angle, the amplitude can be calculated and from amplitude and oscillation period finally the speed at the pendulum’s center can be calculated.

## Is amplitude affected by mass?

the distance ( amplitude ) doesn’t change because more mass was added, cause mass has no effect on it. more mass means more force= more acceleration moving through a greater distance in the same amount of time.

## Why must the angle of a pendulum be kept small?

Yes, angle must be smaller for shm , In case of simple pendulum, because motion of Bob must be linear to be motion simple hormonic. If angle is smaller then distance covered is approximately equal to displacement .

## What is amplitude of the pendulum?

Amplitude, in physics, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. … The amplitude of a pendulum is thus one-half the distance that the bob traverses in moving from one side to the other.

## How do I keep my pendulum swinging?

There are several things that you can do to make a pendulum swing for a long time:Make it heavy (and, specifically, dense). The more mass a pendulum has, the less outside influences such as air resistance will degrade its swing.Put it in a vacuum. … Use an escapement mechanism. … Give it a large initial swing.

## Why do shorter pendulums swing faster?

Why does the angle the pendulum starts at not affect the period? (Answer: Because pendulums that start at a bigger angle have longer to speed up, so they travel faster than pendulums that start at a small angle.)

## Why does the amplitude not affect period of pendulum?

The period does not depend on the Amplitude. The period depends on k and the mass. The more amplitude the more distance to cover but the faster it will cover the distance. The distance and speed will cancel each other out, so the period will remain the same.

## Why amplitude of simple pendulum is kept small?

If it is a pendulum, amplitude must be small because the “time period does not depend on amplitude” rule applies to pendulums only if it is exhibiting simple harmonic motion. … So, when amplitude is kept small (allowing use of the sinθ=θ approximation), time period is independent of amplitude.

## Does period of pendulum depend on amplitude?

In fact, though, the pendulum is not quite a simple harmonic oscillator: the period does depend on the amplitude, but provided the angular amplitude is kept small, this is a small effect. … The mass cancels between the two sides, pendulums of different masses having the same length behave identically.

## Does amplitude affect speed?

The amplitude of a wave does not affect the speed at which the wave travels. Both Wave A and Wave B travel at the same speed. … The wavelength of a wave does not affect the speed at which the wave travels.

## What happens to the period of a pendulum when the length is doubled?

a) If the length is doubled, the period will increase by a factor of √2 . Doubling the mass of the bob will half the period.

## What does amplitude depend on?

The amplitude of a rope wave depends on how hard you shake it. For a sound wave it depends on how much compression the loud speaker or musical instrument creates. In other words, it depends on the energy the source put into the wave. It does not depend on frequency, wavelength, or velocity.

## Why doesn’t weight affect a pendulum?

The mass on a pendulum does not affect the swing because force and mass are proportional and when the mass increases so does the force. … In the formula, “l” is the length and “g” is the force of gravity. Therefore, the mass does not affect the period of the pendulum.

## Does frequency depend on amplitude?

The amplitude and the frequency of a wave are independent of each other. The amplitude and the frequency of a wave are equal. The amplitude decreases with an increase in the frequency of a wave. The amplitude increases with an increase in the frequency of a wave.