Download presentation
Presentation is loading. Please wait.
Published byGervase Young Modified over 9 years ago
1
TorqueTorque A turning force
2
Torque (T) – a turning force Torque depends on the linear force applied and the distance from the fulcrum (pivot point) Eg pushing a door is harder from near the hinge than near the handle
3
Torque is a vector Because it is a turning force, the direction is given as clockwise or anticlockwise T = Fd so the units are Nm
4
Common examples of torques are levers, seesaws and bridges The best approach to finding total torque is to find the clockwise torques and balance against the anti clockwise ones
5
Force, Torque and Equilibrium When an object is at rest or moving uniformly it is said to be in equilibrium
6
Forces and Equilibrium 2 forces are in equilibrium if they are equal and opposite 3 forces are in equilibrium if their vector sum = 0 (a closed triangle) Any number of forces are in equilibrium if they form a closed vector diagram
7
A torque needs… A name: “turning force” or “torque” A pivot point = fulcrum A size for the force and the perpendicular distance from the fulcrum A formula: T = Fd (units Nm) A direction: clockwise or anticlockwise direction
8
Solving torque problems Draw a diagram Find and sum the clockwise Torques (T c ) Find and sum the anti-clockwise Torques (T A ) Equilibrium exist if the T A = T c
9
To be in equilibrium… The forces must be balanced The torques must be balanced! If the torques are unbalanced then there is a total force (also called net force) and acceleration happens. The system is not in equilibrium.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.