# How are mechanical clocks powered?

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## What kind of energy does a mechanical clock use?

Mechanical Energy—Examples include a clock that is powered by a wound-up spring, or an arrow shot from a bow. With this type, energy is stored in the mechanical device by the application of a force, such as when we wind the clock or pull the bow back.

## Are clocks mechanical energy?

Mechanical energy has always been very important. Older watches and clocks had a spring in them. … The energy was stored in a large spring and could make the record spin around and produce the sound energy. There are several aspects of mechanical energy that you could investigate scientifically.

## How does battery clock mechanism work?

The battery inside a quartz clock or watch sends electricity to the quartz crystal via an electronic circuit, causing the fork’s prongs to vibrate 32,768 times per second. … These pulses power the gear wheels forward, in turn moving the clock’s second hand (and minute and hour hands) clockwise around the clock face.

## Why a pendulum stops swinging?

A pendulum stops oscillating because it loses energy when it is converted into heat. Even without air friction, the friction which exists with the point around which the pendulum rotates causes the system to lose kinetic energy and eventually stop.

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## How do I keep my pendulum swinging?

The pendulum needs to swing exactly equal distances from dead center to the left, as from dead center to the right. If a clock is out of beat, the pendulum will swing for a few minutes, then stop even if the clock case is level.

## Who invented time?

The measurement of time began with the invention of sundials in ancient Egypt some time prior to 1500 B.C. However, the time the Egyptians measured was not the same as the time today’s clocks measure. For the Egyptians, and indeed for a further three millennia, the basic unit of time was the period of daylight.

## How long do mechanical clocks last?

A: If a mechanical clock is kept serviced every two to three years, it will generally last for 35-40 years, sometimes even more. Once a clock becomes worn, it will need to be overhauled, where it is taken competely apart and re-machined to like-new tolerances.

## What happens when you apply electricity to the clock?

Electric pulses drive miniature electric stepping motor. This converts electrical energy into mechanical power. Electric stepping motor turns gears. Gears sweep hands around the clockface to keep time.