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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
None of the above choices
C
one body A
D
Two bodies A B
2) Tension is a force of type:
A
Acting from a distance
B
Contact force
C
Friction force
D
Gravitational force
3) Weight is a force of gravity and its type
A
Frictional Force
B
Acting from a distance
C
Contact force
D
All of the choices.
4) The unit of a force is
A
Liter
B
Meter
C
Kilogram
D
Newton
5) Spring balance uses to measure
A
weight of the body
B
Mass of a body
C
Density of the body
D
Volume of the body
6) At equilibrium the two forces acting on a body rests on a smooth table:
A
Have same magnitude
B
All choices
C
Have opposite directions
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
Weight of the body
B
Weight of the body and thetension of the spring
C
None of the above choices
D
Tension of the spring
8) Hook’s law states:
A
Tension is directly proportional to length
B
Tension is inversely proportional to length
C
Tension is inversely proportional to elongations inversely
D
Tension is directly proportional to elongation
9) T = K ∆l is Hook’s law where K is:
A
Length of the spring
B
Tension in the spring
C
Elongation of the spring
D
Stiffness constant
10) The curve Characterizes the variation of T as a function of ∆l:
A
All choices
B
Ascending straight line
C
Descending straight line
D
straight line passing through the origin
*select an answer for all questions
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