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WorksheetsChapter 5 - Turning Effect of Forces
Total questions: 10
Worksheet time: 6mins
What is the moment of a force?
The sum of the forces and the perpendicular distance from the
pivot to the line of action of the force.
The product of the forces acting on the opposite direction of the pivot.
The product of the force and distance from the pivot to the line of action of the force.
The product of the force and the perpendicular distance from the pivot to the line of action of the force.
What is the unit used for moment?
N/m
Nm
Ncm
N
Which of the following is not required to obtain the moment of a force?
The distance between the forces.
The direction of the force.
The magnitude of the force.
The position of the pivot.
A horizontal pole is attached to the side of a building. There is a pivot P at the wall and a chain is connected from the end of the pole to a point higher up the wall. There is a tension F in the chain.
Which of the following length represent the perpendicular distance between the pivot and the line of action of tension F?
d
h
l
s
A 5 N weight was attached to a meter rule as shown. What is the moment due to the 5N force?
450 Nm
300 Nm
150 Nm
0 Nm
Which of the following statements about an object in equilibrium is incorrect?
The object moves at constant speed.
Principle of moment can be applied.
The resultant force is zero.
The resultant moment is zero.
A uniform beam is pivoted at the 50 cm mark. Two forces are acting on it as shown
If the beam is balanced, which of the following A, B, C and D indicates the likely position and direction of the third force?
A
B
C
D
What is meant by centre of gravity of a body?
The centre position of a body.
The moment produced by the weight of the body.
The weight acting at the center of the body.
The point through which its whole weight appears to act.
A lamina of uniform thickness was suspended freely by a pin. Which position represent the centre of gravity of the lamina?
A
B
C
D
The diagram shows the cross-sections of different glass container. Which one is the most stable when filled with a liquid to the brim?
A
B
C
D
