If you set up a pendulum on the moon, would it swing forever?

Question

There would be no air resistance or wind to slow it down.

Answer 1

There is some material in the space around the moon, perhaps too meager to be called an atmosphere, but it's more crowded with dust and gases than the "empty" space between the stars.

So even though a pendulum would swing for a long, long time, eventually friction of the pivot of the pendulum and pressure from the very thin atmosphere would slow it down and stop it.

Answer 2

True, there would be very little atmospheric friction to slow the movement of such a pendulum, but the tug of the moon's gravity, although a weaker force than gravity on Earth or on any larger body, would still be at work. One would expect the pendulum to come to a stop eventually, all other things being equal.

Answer 3

no.

There is the mechanical resistance of the pendulum bearing. Its never going to be zero so it would eventually stop.

It not a total vacumn on the moon either.

BTW : If it wernt for gravity then the pendulum wouldnt work at all.

Answer 4

I am going to say something completely original, unlike anything above me.

No, because the moon has gravity too, like any other celestial body. It would go longer, but not forever. Forever is impossible.

Answer 5

No.

The resistance of the Moon's gravity would cause it to slow down.

Answer 6

Swinging forever would violate the laws of the conservation of energy. There is no such thing as perpetual motion.

Answer 7

CHECK WITH LOWES OR HOME DEPOT I DON'T THINK ROUNDUP IS THE WAY TO GO BUT A GOOD WEED WHACKER WILL DO THE JOB IF IT'S ADJUSTED TO CUT CLOSE THEN REPEAT EVERY TWO WEEKS IN THE SUMMER WEED KILLER ANY KIND IS REALLY UNSAFE FOR PETS AND KIDS

Answer 8

No! You would loose energy to friction on the rope.

Answer 9

no, cos moon have its gravity too, its 1-5 from the earth gravity.

Answer 10

no but it would swing longer than when it was on earth