Physics Practice Tests – Moment of a Force (Questions with Answers and Explanations)

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Physics Practice Tests – Moment of a Force (Questions with Answers and Explanations)

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In the diagram shown, the moment of force F about the point X is ____

A. Fa sin θ    B. Fa tan θ     C.     D. Fa cos θ


A uniform metre rule of mass 100 g balanced at the 40 cm mark when a mass Q was placed at the 10 cm mark. Find the value of Q. (NECO 2014)

A. 25.0 g      B. 30.0 g     C. 33.3 g      D. 133.3 g



If PQ = 2 m, the moment of the 3 N force about the point P in the diagram above is _____

A. 6 Nm
B. 5 Nm
C. 1 Nm
D. 0



A uniform rod of weight 100 N is pivoted at the right end while the left end is suspended by a string at an angle of 30o to the rod. If the rod is horizontal, the tension in the string is ______

A. 25 N
B. 50 N
C. 75 N
D. 100 N


A uniform meter rule of mass 100 g balanced horizontally on a pivot at its 45 cm mark when loads of 20g, 30g and 50g were hung on it as shown in the diagram below:


Determine the value of y in terms of x. (NECO 2023)

A. y= (1 + x)     B. y = 5 + x     C. y = (1 + x)     D. y = 3 + x

 

 

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