A particle is dropped from a vertical height h and falls freely for a time t.  With the aid of a sketch, explain how h varies with

            (a)        t;
            (b)        t\(^2\).

A particle is projected horizontally at 15ms\(^{-1}\) from a height of 20m.
Calculate the horizontal distance covered by the particle just before hitting the ground.

[g = 10 ms\(^{-2}\)]

Explain why mercury does not wet glass while water does.

(a) Explain what is meant by cations

(b) Draw and label an electrolytic cell

(a) State Faraday’s second law of electrolysis.

(b) An electric charge of 9.6 x 10\(^4\) C liberates 1 mole of substance containing 6.0 x 10\(^{23}\) atoms.  Determine the value of the electronic charge