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- 1. Multiple Choice
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
- 2. Multiple Choice
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
- 3. Multiple Choice
The two common forces attracting on us
everywhere are
Gravity and Friction
Gravity and Magnetic Force
Electrostatic and Gravitational Force
None of the above
- 4. Multiple Choice
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
- 5. Multiple Choice
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
- 6. Multiple Choice
A spring balance measures force
True
False
- 7. Multiple Choice
Friction can never be eliminated.
True
False
- 8. Multiple Choice
A soapy floor is slippery due to increase the fiction.
True
False
- 9. Multiple Choice
Friction is dependent on area of contact
True
False
- 10. Multiple Choice
Friction decreases to the increase in the smooth of a surface
True
False
- 11. Multiple Choice
The force of friction is greater if a rough surface is. Involved
True
False
- 12. Multiple Choice
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
- 13. Multiple Choice
Rocket has A special streamlined body.
True
False
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