K.C.S.E Physics Q & A - MODEL 2005PP2QN02
a) Fig 2. Shows a wheel and axle being used to raise a load W by applying an effort F The radius of the large wheel is R and of the small wheel r as shown.
(i) Shows that the velocity ratio (V.R) of this machine is given by R/r
(ii) Given that r= 5cm, r=8cm, determine effort required to raise a load of 20N if the efficiency of the machine is 80%
(iii) It is observed that the efficiency of the machine increases when it is used to lift large loads. Give a reason for this.
K.C.S.E Physics Q & A - MODEL 2005PP2QN01
a) Describe with aid of a labeled diagram an experiment to determine the focal length of the lens when provided with the following; an illuminated object, convex lens, a lens, a lens holder, a plane mirror and a metre rule.
b) A small vertical object is placed 28cm in front of a convex lens of focal length 12cm. On the grid provided, draw a ray diagram to locate the image. The lens position is shown.
(Use a scale; 1cm rep re 4cm)
Determine the image distance.
c) Fig 1 shows a human eye with a certain defect
(i) Name the defect
(ii) On the same diagram, sketch the appropriate lens to correct the defect and sketch rays to show the effect of the lens.
K.C.S.E Physics Q & A - MODEL 2005PP1QN38
Fig 18 shows two spherical materials one an insulation conductor, the other a conductor, Negative charge are introduced at point A in each case.
One the same figure indicate the final position of the charges. Explain your answer.
K.C.S.E Physics Q & A - MODEL 2005PP1QN37
In the set up Fig 17 the metal rod is made up of steel and iron pieces joined end. Your are provided with two iron nails
Explain how you would use two nails provided to determine which side is iro
K.C.S.E Physics Q & A - MODEL 2005PP1QN36
The following represents a nuclear reaction involving the nuclide polonium P
Identify m, n and X
FORM I - PHYSICS SYLLABUS
FORM II - PHYSICS SYLLABUS
FORM III - PHYSICS SYLLABUS
FORM IV - PHYSICS SYLLABUS
My passion is to see students pass using right methods and locally available resources. My emphasis is STEM courses