Does a system have to contain more than one object?
Answers
Answer:
Forces that act on all objects.
Weight (W, Fg)
The force of gravity acting on an object due to its mass. An object's weight is directed down, toward the center of the gravitating body; like the Earth or moon, for example.
Forces associated with solids.
Normal (N, Fn)
The force between two solids in contact that prevents them from occupying the same space. The normal force is directed perpendicular to the surface. A "normal" in mathematics is a line perpendicular to a planar curve or surface; thus the name "normal force".
Friction (f, Ff)
The force between solids in contact that resists their sliding across one another. Friction is directed opposite the direction of relative motion or the intended direction of motion of either of the surfaces.
Tension (T, Ft)
The force exerted by an object being pulled upon from opposite ends like a string, rope, cable, chain, etc. Tension is directed along the axis of the object. (Although normally associated with solids, liquids and gases can also be said exert tension in some circumstances.)
Elasticity (Fe, Fs)
The force exerted by an object under deformation (typically tension or compression) that will return to its original shape when released like a spring or rubber band. Elasticity, like tension, is directed along an axis (although there are exceptions to this rule).
Forces associated with fluids. Fluids include liquids (like water) and gases (like air).
Buoyancy (B, Fb)
The force exerted on an object immersed in a fluid. Buoyancy is usually directed up (although there are exceptions to this rule).
Drag (R, D, Fd)
The force that resists the motion of an object through a fluid. Drag is directed opposite the direction of motion of the object relative to the fluid.
Lift (L, Fℓ)
The force that a moving fluid exerts as it flows around an object; typically a wing or wing-like structure, but also golf balls and baseballs. Lift is generally directed perpendicular to the direction of fluid flow (although there are exceptions to this rule).
Thrust (T, Ft)
The force that a fluid exerts when expelled by a propeller, turbine, rocket, squid, clam, etc. Thrust is directed opposite the direction the fluid is expelled.
Forces associated with physical phenomena.
Electrostatic Force (FE)
The attraction or repulsion between charged bodies. Experienced in everyday life through static cling and in school as the explanation behind much of elementary chemistry.
Magnetic Force (FB)
The attraction or repulsion between charged bodies in motion. Experienced in everyday life through magnets and in school as the explanation behind why a compass needle points north.
Fundamental forces. All the forces in the universe can be explained in terms of the following four fundamental interactions.
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Answer:
No .
Explanation:
Force work on one and more objects