Question

3 practical examples of moment of force

4 practical examples of pressure
2 to increase pressure
2to decrease pressure

Answer 1

3 pratical examples of moment of force:-

a) twisting a door knob 

b) pushing the door open (the torque opens the door) 

c) screwing a cap off a bottle 

4 pratical example of pressure:-

increase pressure:

a) Women standing on high heels to exert greater pressure than an elephant.
b) Smaller the contact area of the nail tip, larger is the pressure applied on to the nail to push in.

decrease pressure:

c) Skis have larger area to reduce the pressure on the snow so they do not sink too deep.
d) school bags have wider straps so the pressure is less on our shoulder.