Would a pendulum swing in space?

No, it wouldn't swing back and forth. Pendulums on Earth require gravity to pull the swing back down after they swing upwards. Since there is no gravity in orbit, there is no force that pulls the pendulum down and make it swing back and forth.

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Will a pendulum stop in a vacuum?

In a vacuum with zero air resistance, such a pendulum will continue to oscillate indefinitely with a constant amplitude. However, the amplitude of a simple pendulum oscillating in air continuously decreases as its mechanical energy is gradually lost due to air resistance. Consequently, does a double pendulum ever stop? (i.e. ones which dissipate the energy of the system, examples would be air drag and friction in common cases). Also, any pendulum which is left initially at its lowest energy state (the bob at the bottom most part of its trajectory), it would stay that way forever. (Assuming no external forces.)

Does pendulum lose energy?

The pendulum loses energy to wind resistance, friction between the tube and the string, and internal friction within the bending string. The pendulum must be "started" by swinging it by hand before the driver can transfer energy into it. Why does the pendulum stop? 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.

What does it mean when the pendulum swings back and forth?

oscillation This back and forth motion is called "oscillation." Its position is said to oscillate back and forth. The period is the amount of time it takes the bob to make one round trip. If the pendulum bob is pulled back and released, it returns to the hand that released it after a time interval equal to one period. And another question, what did galileo discover about pendulums? Galileo's discovery was that the period of swing of a pendulum is independent of its amplitude--the arc of the swing--the isochronism of the pendulum. [1] Now this discovery had important implications for the measurement of time intervals.