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Is gravity a solid? Physical collisions of solid objects is not the only way that forces can act on solid objects.
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∙ 16y ago
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Forces can only stop objects from moving true or false?
False. Forces can also set stationary objects in motion.
What is the force that acts in an upward direction against the force of gravity so it makes an object lighter?
That force is refereed to as the normal forces. it only applies to objects on a solid surface.
Are forces only exerted when objects touch each other?
No...
Is the mutual gravitational force exerted by a pair of objects affected by the nature of the inverting medium?
Inverting? I assume you mean the surrounding medium, or the medium in between. No; the gravitational force depends ONLY on the masses, and on the distance. Of course, anything between the two objects may exert forces OTHER than the gravitational force.
Is it true that a magnet is an object that can exert force on another material?
Yes, it is true that a magnet is an object that can exert force on another material. However, it will only exert that force if it is made out of the correct material. Items made of iron are the most common magnetic objects.
Is dry ice an amorphous solid?
No, it is just Carbon dioxide in solid state (converted from gas directly to solid by sublimation). No ionic forces present. These are van der wall forces only.
Is it true forces can be added together only if they are acting on different objects?
Yes, it is true
Which boolean operation keeps only the volume common to the two solid objects?
Intersect
Do only solid objects have mass density and volume?
No every phase has those characteristics
An unbalanced force will not change an objects motion?
If the forces on an object are unbalanced then the objects motion will change. It will start accelerating in the direction of the resultant force. Only objects that have balanced forces will remain in the same motion (stationary or moving at a constant speed).
Why can only external forces cause objects to move?
Because of Newton's First Law of Motion.
What is the difference between electeical forces and gravitational forces?
-- Electrical force only cares about the charge on two objects, and ignores their mass. Gravitational force only cares about the mass of two objects, and ignores their charge. -- Electrical force can be attractive or repulsive. Gravitational force can only be attractive.
