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Equilibrium Of A Body 9
Test Description: We are going to find out the condition of equilibrium of a solid body under two forces
Instructions: Answer all questions to get your test result.
1) principal of interaction acts on:
A
Three bodies A,B and C
B
one body A
C
Two bodies A B
D
None of the above choices
2) Tension is a force of type:
A
Gravitational force
B
Acting from a distance
C
Contact force
D
Friction force
3) Weight is a force of gravity and its type
A
All of the choices.
B
Acting from a distance
C
Contact force
D
Frictional Force
4) The unit of a force is
A
Liter
B
Kilogram
C
Newton
D
Meter
5) Spring balance uses to measure
A
Mass of a body
B
Volume of the body
C
Density of the body
D
weight of the body
6) At equilibrium the two forces acting on a body rests on a smooth table:
A
All choices
B
Have opposite directions
C
Have same magnitude
D
Have same line of action
7) When a body is suspended to the hook of a spring then it is under the effect of:
A
Tension of the spring
B
Weight of the body and thetension of the spring
C
Weight of the body
D
None of the above choices
8) Hook’s law states:
A
Tension is directly proportional to length
B
Tension is inversely proportional to length
C
Tension is directly proportional to elongation
D
Tension is inversely proportional to elongations inversely
9) T = K ∆l is Hook’s law where K is:
A
Stiffness constant
B
Tension in the spring
C
Elongation of the spring
D
Length of the spring
10) The curve Characterizes the variation of T as a function of ∆l:
A
All choices
B
straight line passing through the origin
C
Descending straight line
D
Ascending straight line
*select an answer for all questions
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