2006-12-11 02:52:51 · 10 answers · asked by sammnpm 1 in Science & Mathematics ➔ Physics
If by "uniform" you mean its acceleration in any direction is zero, then no, its motion is not uniform. As one answerer correctly pointed out, old Earth goes around the Sun with an elliptical path. Because of this lopsided path and the laws of gravity, our orb will speed up as it draws closer to the Sun and slow down as it pulls farther away. This is called Kepler's Law. So the revolution of our Earth is not uniform. [See source.]
But what about its rotation on its own axis? Nope, 'fraid not, the Earth wobbles like a drunken sailor as it spins on its axis. So, rather than a nice uniform angular velocity around the axis, our planet kind of jerks around even though the jerks, the wobbles, are slight. Again, the Earth's motion is not uniform. [See source.]
We could go into other paths of motion, like Earth's path in the Milky Way Galaxy, or its path relative to other galaxies, but the result would be the same. Earth's motion is not uniform; there is always acceleration of some sort along all its paths.
2006-12-11 04:17:45 · answer #1 · answered by oldprof 7 · 0⤊ 0⤋
Motion of earth is NOT uniform.
Earth revolves around an elliptical orbit around the sun , the sun being at on focus of the ellipse.
axis of rotation of earth is also unstable.
above fact is verified by the observed phenomenon of movement, reversalof earths magnetic field, every 1000 years or more.
2006-12-11 02:59:49 · answer #2 · answered by Som™ 6 · 0⤊ 0⤋
i am not so sure abt it but yes i think the motion of the earth is uniform as it is centripetal force
2006-12-11 07:00:53 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It is very smooth and uniform, considering that we move at 1036 miles per hour at the equator. Almost "Zero at" the poles.
2006-12-11 06:50:37 · answer #4 · answered by minootoo 7 · 0⤊ 0⤋
No, the moon's gravity causes a bulge in the earth where it is closest to the moon while rotating.
2006-12-11 02:57:03 · answer #5 · answered by amy 3 · 0⤊ 0⤋
no it´s not... the speed is constant so the motion cannot be uniform...
2006-12-11 03:00:55 · answer #6 · answered by Andres 2 · 0⤊ 0⤋
No. It is rotating around the sun. If it doesnt rotate, it will be burned.
2006-12-11 08:04:25 · answer #7 · answered by ♥♪♫Priya_akki™♫♪♥ 6 · 0⤊ 0⤋
yes
2006-12-11 04:23:48 · answer #8 · answered by Mishu 1 · 0⤊ 0⤋
Yes, it appears to be so!
2006-12-11 03:02:19 · answer #9 · answered by Sami V 7 · 0⤊ 1⤋
yes,it is uniform.because that's why one year is 365.25 days.
2006-12-11 05:36:30 · answer #10 · answered by prashanta k 1 · 0⤊ 0⤋