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5 questions
Name the force applied between the surface of two objects.
Muscular force
Frictional force
Elastic force
When a force applied by a tool or a machine, it is called _____________________ force.
Mechanical
Electrical
Gravitational
When we move an object to a certain distance, it is said that the work is not done.
True
False
_______________ surface generate more friction.
Oily
Greasy
Rough
The unit of force is _________________
Newton
Meter
Kilogram
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