subject

Torque

Physics ⇒ Mechanics

Torque starts at 11 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Torque. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A force of 10 N is applied perpendicular to a wrench at a distance of 0.3 m from the pivot. Calculate the torque produced.
A force of 12 N acts at a distance of 0.4 m from the axis of rotation at an angle of 60°. Calculate the torque produced.
A force of 20 N acts at an angle of 30° to a lever arm of length 0.5 m. Calculate the torque produced.
A force of 8 N is applied at a point 0.25 m from the axis of rotation, making an angle of 45° with the lever arm. Calculate the torque produced.
A seesaw is balanced when a 40 kg child sits 2 m from the pivot on one side. How far from the pivot should a 50 kg child sit on the other side to balance the seesaw? (Assume g = 10 m/s²)
A uniform meter stick is balanced at its center. If a 2 kg mass is hung at 20 cm from one end, where should a 3 kg mass be hung on the other side to balance the stick? (Assume g = 10 m/s²)
A uniform rod of length 2 m is pivoted at one end. If a force of 15 N is applied perpendicular to the other end, what is the torque about the pivot?
A wheel is rotated by a force of 25 N applied tangentially at a radius of 0.2 m. What is the torque?
Define torque and state its SI unit.
Describe the physical significance of the sign (positive or negative) of torque.
Explain the difference between torque and force.
Explain why opening a door is easier when you push at the edge farthest from the hinges.
If the angle between the force and the position vector is 90°, what is the value of sinθ in the torque formula τ = rFsinθ?
If two equal and opposite forces act at different points on a body, what is the net force and net torque produced?
State the condition for rotational equilibrium in terms of torque.
State the mathematical expression for the torque produced by a couple.
State the right-hand rule for determining the direction of torque.