pendulum's slow down during summers because the pendulum expands and it moves faster during winters because the pendulum contracts
Air resistance.
The pendulum will lose energy, due to friction.
Yes. If you take a pendulum and set it swinging it's friction of the pendulum against the air, and internal friction in the line that will eventually slow the pendulum down.
If the length of a pendulum is increased, the pendulum will take longer to complete a swing, and the clock will slow down. Shortening the pendulum will speed up the clock.
particles in the air slow it down and cause it to stop eventually
Air resistance.
The pendulum will lose energy, due to friction.
Because of both air resistance and gravity that pulls the pendulum down.
Yes. If you take a pendulum and set it swinging it's friction of the pendulum against the air, and internal friction in the line that will eventually slow the pendulum down.
That would be friction, both in the form of air resistance against the string and the weight, and friction at the pivot.
A pendulum moves not by Earth's rotation, but by gravity pulling down and causing it to swing.
If the length of a pendulum is increased, the pendulum will take longer to complete a swing, and the clock will slow down. Shortening the pendulum will speed up the clock.
particles in the air slow it down and cause it to stop eventually
There is a nut on the bottom of the pendulum to adjust the speed. Turning it clockwise speeds it up, counter clockwise slows it down
There are a number of things that affect the pendulum and how it operates. Let's just start setting them down. The mass of the pendulum and its string, cable, rod, or whatever it is that it is suspended from. The length of the suspension cable or rod. The nature of the pivot point from which the suspension is tied, or, more specifically, the friction generated by the pivot. The air resistance to the pendulum and its suspension. The latitude at which it is operated (because a small amount of torque will be applied at anything more than 0o). The nature and loss of the driving mechanism for the continued movement of the pendulum. The temperature of the surrounds of the pendulum and its mechanism.
To slow down a swinging clock pendulum, one must make it longer. In mechanical clocks, the majority of the mass of the pendulum is contained in the "bob" (a disk or weight) usually at the bottom of the pendulum. If you lower the pendulum bob, the pendulum is lengthened and the pendulum runs slower. This is usually done by turning a nut on a threaded portion of the pendulum just below the bob. Make sure the bob drops as you lower the nut or nothing will change. To raise the rate of the pendulum (make it run faster), you just turn the nut the opposite way.
Air resistance.