Comapre and contrast motion of objects in space and objects on the earth?

Answer 1

Motion of Objects in Space:
1. Lesser Gravity (sometimes nil)
2. Number of forces acting are very less
3. Energy required to work is very high due to less gravity.
4. Weight is less

Motion of Objects in Space:
1. Higher Gravity (9.8 m/s)
2. Number of forces acting are more (Gravitational pull, etc.)
3. Energy required to work is less as compared.
4. Weight is More

Mass stays same; Density remains same; Newtons laws of motion are active in both.

Answer 2

'Compare' and 'contrast'(sorta means the same thing) - BUT - on earth(literally) absolute friction slows everything, and everything on earth is 'slow' anyway. Even a normal orbiting satellite is travelling at 17, 000 MPH. Motion is something that objects do when they're 'moving', thus the relation must be speed for one. Motion on earth has to be 'initiated' by some kind of 'force' or action and reaction. Motion in space or the 'movement' of objects in space is 'controlled' or 'affected' by gravity.The 'gravity' is 'supplied' by objects in space that actually have enough mass to have gravity, and as a moving object passes 'by', the gravity of the larger mass propels the object further with its gravity field. This is supposed to go on into infinity, unless the 'object' crashes into a mass with gravity. We would then call the result a meteorite(what a show)!). If it's too big - it's over for us - just like the dinosaurs - ewww!

Answer 3

Compare - In both places, motion will continue in the current direction unless the object is acted upon by an outside force.

Contrast - There is a big difference in "outside forces" between space and on earth. There is very little friction in space. Therefore objects in space (that are not near a gravity well, anyway) will continue to travel in their current direction for a nearly indefinite length of time. On earth there are many sources of friction to oppose motion, the primary in most questions like this being air resistance. Since friction is a force that opposes motion, this means that on earth objects will tend to slow and stop relative to their surroundings. Therefore the main difference is that in space objects will continue to travel with a (nearly) constant velocity, but on earth objects will tend to slow and stop over time.