Does time exist without motion? Does motion exists without force?

Question

Motion and force are only fundamental things in this universe. Space and time are coming out from that.

Answer 1

At 0° Kelvin, there's zero energy and so zero motion ... thus effectively there's zero time... 'Space' would not exist as such as there would be no relation between 'things', as relation requires force which is energy.

'Time', as such, does not exist on a theoretical level. 'Time' for me is just a means of measuring motion/force relations on objects ... And of course, as we are part of this universe, we had to invent 'Time' to come to terms with these interactions...

I've already written about this, in fact ... A deep freeze effectively SLOWS, time on an infinitisimally small scale, as it removes energy required for motion ... so perhaps we all have a form of weak time machine in our kitchens...

;^) Interesting, huh ?

Answer 2

First of all there is a great difference between " existance " and "appearance or perception " . Actually theoretically speaking no such " thing " as ' time ' exists, it is what we ' percieve '. A change of objects with respect to this percieved time is what we call as ' motion '.
So time can very well exist without motion, but the problem is - we won't be able to percieve that time. But a change of only position, which we call as motion, will not be percieved wothout time.

Secondly, it was Gallileo Gallile and many other scientists after him, especially Isaac Newton, who firmly established that " if " motion is a characteristic of a body, no further force is needed to keep it in motion. But however, motion to ' exist ' cannot be initiated without a force. But after it has been initiated, a force ' need not ' continue to ' exist ' for the motion to continue.

Answer 3

A force can exist without any motion -- your weight on your chair for example. Since acceleration is defined as the change in velocity of motion,it can't exist in a system with no motion.

Answer 4

Time does exist without motion. Time is not dependent on motion. It is motion that is dependent on time. Motion does indicate the passage of time.

Motion is an objects displacement from one location to another and this has time as a factor. However the concept of being motionless or static does not exist in this universe. No matter how fixed a rock is on the ground, there are always tremors and it sits on a planet that rotates, revolves around the sun, in a galaxy that spins... but, if time stops all motion ceases.

There is the concept of time-warp, there is motion, but no progress in time. It exists, but loops.

Motion exists without force. It is the change of motion (direction and speed) that requires a force. Newton's first law of motion states, 'Objects in motion tend to stay in motion, and objects at rest tend to stay at rest unless an external force acts upon them.'

So if you are locked in a sphere that is sliding on slippery surface, nothing you do while inside can stop it. Similarly if you are in boat on a still lake, the boat may rock when you move around inside, but you can't set it in motion without paddling, in effect interacting with elements outside of the boat.

Answer 5

I think time would exist because i'd like to think there's something objective outside this universe, so even if motion stopped in this universe, it still would be experiencing everything around it. And no, there has to be some sort of acting force in order for motion to exist.

Answer 6

Theoretically, time would exist as a dynamical degree of freedom that would describe time dependent behavior (generalized motion), even if such behavior is not present. As with other kinds of freedom, one is not compelled to exercise it for it to be present. However, since actual motion is necessary to *measure* time, the theory cannot be experimentally demonstrated in this case in principle. If the question, therefore, is whether or not time *actually* (vs. theoretically) exists without motion, it falls into the same catagory as "If a tree falls in the forest, and no one is there to hear it, does it make a sound". Such questions are metaphysical (beyond physics) in nature. I suggest submitting the question to the philosophy forum.

Answer 7

Yes time does exist without motion.
Motion can also exist without force.

Answer 8

I think time can not exist without motion.

If we imagine a still world (without any motion even in sub-atomic scale- I know it is actually impossible for us to imagine such a world!) then time would be meaningless. If one says time is solely dependent on our perception, I agree. However, in a motionless universe, no one can perceive time; therefore, it can not exist in such a world.

Moreover, I do not know how people believe that time can exist without our perception. How do they conclude in physics that some thing that they can not perceive do exist!

Motion can exist without force. According to Newton's famous rules.

Answer 9

Time is meaningless without motion, because there needs to be some reference point to start counting.

Motion can't exist without force.

Answer 10

Yes and Yes
Einstein's Special Theory of relativity: Motion is dependant om the frame of reference, ther is no such thing as motion or not motion independant of teh observer. Time is a dimension and as such exists.

Newton's 1st Law of Motion: Objects in motion tend to stay in motion, and objects at rest tend to stay at rest unless an outside force acts upon them.