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 11
A force of 10 N is applied perpendicular to a wrench at a distance of 0.2 m from the pivot. Calculate the torque produced.
A force of 12 N is applied at a distance of 0.4 m from the axis, making an angle of 60° with the lever arm. Calculate the torque.
A force of 15 N is applied at a point 0.3 m from the axis of rotation, but at an angle of 0° to the lever arm. What is the torque produced?
A force of 18 N is applied at a distance of 0.25 m from the axis, perpendicular to the lever arm. What is the torque produced?
A force of 25 N is applied at a distance of 0.6 m from the axis, at an angle of 45°. Calculate the torque produced.
A force of 30 N is applied at a distance of 0.2 m from the axis, but at an angle of 120° to the lever arm. Calculate the torque produced.
A force of 8 N acts at an angle of 30° to a lever arm of length 0.5 m. Calculate the torque produced.
A seesaw is balanced when two children of different masses sit at different distances from the pivot. This is an example of which principle?
A uniform meter stick is balanced at its center. If a 2 N weight is hung at 20 cm from one end, at what distance from the other end should a 3 N weight be hung to balance the stick?
A uniform rod of length 2 m is pivoted at one end. If a force of 5 N is applied at the other end perpendicular to the rod, what is the torque about the pivot?
A wheel is rotated by a force of 20 N applied tangentially at a radius of 0.5 m. What is the torque?
Define torque and state its SI unit.
Describe the right-hand rule for determining the direction of torque.
Explain the difference between torque and force.
Explain why a longer wrench makes it easier to loosen a tight bolt.
Explain why the torque is maximum when the force is applied perpendicular to the lever arm.
If the net torque on a body is zero, what can you say about its rotational motion?
If the sum of all torques acting on a body is not zero, what will happen to the body?
If two equal and opposite forces act at different points on a body, what is the net force and net torque?
State the condition for rotational equilibrium in terms of torque.