Question bank: Statics: Torque or Moment

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Question 1:

Medium

What is torque or moment in Physics? Give a succinct and clear explanation.

Statics: Torque or Moment

Question 2:

Medium

A bicycle wheel is attached to a horizontal axis and a person applies a force F = 20 N to one of the wheel's spokes to make it spin. The wheel's radius is 25 cm. The angle between the radius and the line of action of the force is 30 degrees. Calculate the torque exerted on the wheel in relation to the horizontal axis.

Statics: Torque or Moment

Question 3:

Medium

A screw turning in a thread produces torque. Torque is defined as the product of the lever arm and the resulting force. Which of the alternatives below correctly represents this definition?

Statics: Torque or Moment

Question 4:

Medium

One of the applications of torque is the operation of a screwdriver, used to tighten or loosen screws. Torque is obtained through the force applied to the screwdriver around the screw, and is directly proportional to the applied force and the distance between the applied force and the point of rotation. Therefore, which of the alternatives below correctly represents the definition of torque?

Statics: Torque or Moment

Contextualized Question

Question 5:

Medium

A Physics student is conducting an experiment with a wrench and a screw. The wrench has a 30 cm long arm and a force of 50 N is applied at the end of the arm, perpendicular to the screw. He wants to adjust the screw by applying a specific torque. a) Calculate the torque applied by the student to the screw. b) If the student needs to double the applied torque, what changes can he make to the applied force or the length of the wrench arm? Justify your answer. c) Considering that the screw has resistance to torque, what is the efficiency of the torque applied to the student and what torque is needed to overcome the resistance and initiate the screw's rotational movement?

Statics: Torque or Moment

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