Sconty empire

WELCOME TO WAEC PHYSICS PRACTICAL PORTAL Thursday 20th August 2020 Physics 3(Practical) (Alternative A)(1st set) – 9:30 – 12:15pm Physics 3(Practical) (Alternative A)(2nd set) – 12:45pm – 3:30pm ++++++++++++++++++++++++++++++++++++++++++++++ (1) TABULATE: S/N: 1,2,3,4,5 M(g):40.0,60.0,80.0,100.0,120.0 x(cm):37.50,25.0,18.75,15.00,12.50 x^-1(cm^-1):0.027,0.40,0.053,0.067,0.08 x^-1(*10^-3):27.00,40.00,53.00,67.00,80.00 Note: G=50.0cm Y=30.0cm (1axi) -I ensured that the metre rule balances horizontally before readings are taken inorder to avoid experimental error -I ensured that parallax error was avoided when taking the readings on the metre rule by viewing mit calibrations vertically (1bi) The moment of a force about a point is defined as the effect of the force about the point Moment of a force=Force x perpendicular distance of a line of action from the point Moment=F*L The S.I untiy is Newtonmetre(Nm It is a vector quantity (1aii) DRAW THE DIAGRAM x=50-25=25cm y=80-50=30cm From the pr