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13 questions
Fluid friction is the force that opposes a motion that takes place within fluids is or in between foods. The frictional force exerted by fluid is also called
Drag
Pressure
SubcombineForce
None
In a cycling race, it is It is observed that a cycle is normally bends his body. WHY?
Feel comfortable
Reduce his weight
Reduce the air drag
Increase energy consumption
The two common forces attracting on us
everywhere are
Gravity and Friction
Gravity and Magnetic Force
Electrostatic and Gravitational Force
None of the above
When the surface is in, contact Tend to move or move with respect to each other. The Force of friction comes into play.
Only if the objects are solid
Only if one of the 2 objects is liquid
I don't know
Irespective of the state of matter of the object
To sharpen the blade of a knife by rubbing it against the the service, which of the following will be the most suitable?
Stone
Plactic block
Wooden Block
Wood
A spring balance measures force
True
False
Friction can never be eliminated.
True
False
A soapy floor is slippery due to increase the fiction.
True
False
Friction is dependent on area of contact
True
False
Friction decreases to the increase in the smooth of a surface
True
False
The force of friction is greater if a rough surface is. Involved
True
False
When we attempt to move any surface, we have to apply a force to overcome interlocking on rough surfaces. There are a large number of your regularities
True
False
Rocket has A special streamlined body.
True
False
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