In the equation for the size of the moment, what is F?
Back
Card 7
Front
In the equation for the size of the moment, what is d?
Back
Card 8
Front
Why is it easier to undo a wheel-nut by pushing on the end of a long spanner than a short one?
Back
Card 9
Front
Why do we use a lever to make a job easier?
Back
Card 10
Front
A door opens when you apply a force of 20N at right angles to it, 0.6m from the hinge. What is the moment of the force about the hinge?
Back
Card 11
Front
What force would be needed to open the door if it were applied 0.3m from the hinge?
Back
Card 12
Front
**IN EXAMS, MOMENT MAY BE APPLIED TO LOTS OF DIFFERENT SITUATIONS BUT THE IDEA IS ALWAYS THE SAME: FOR ANY PARTICULAR FORCE MAKE THE DISTANCE TO THE PIVOT BIGGER TO MAKE THE MOMENT BIGGER**
Back
Card 13
Front
**THE MOMENT EQUATION USES THE TERM 'PERPENDICULAR DISTANCE'' WHICH MEANS THE SHORTEST DISTANCE FROM THE LINE THAT THE FORCE ACTS ALONG**