(a) Explain how this movement can be observed (1mk)
By strongly illuminating a suspension of pollen grains in water/dust particles in air or smoke cell
(b) State in full, the law of motion that governs movement from x to z (1mk)
A body continues in its state of rest or motion with uniform velocity unless acted upon by an external force
K.C.S.E Physics Q & A - MODEL 2019PP1QN01
A micrometer screw gauge has a -0.03 mm error. State the reading that is observed on the instrument when used to measure the diameter of a wire whose actual diameter is 0.38 mm.
K.C.S.E Physics Q & A - MODEL 2018PP1QN03
Describe how the knowledge of the oil drop experiment may be used to estimate the area of oil spillage from a ship in the sea assuming the surface water is not disturbed.
K.C.S.E Physics Q & A - MODEL 2017PP1QN16
(a) In an experiment to determine the size of an oil molecule, oil is placed on the surface of water after sprinkling lycopodium powder on it.
(i) State two reasons why oil is used.
(ii) State the function of the lycopodium powder.
(iii) State any two assumptions that are made in this experiment.
(iv) Explain why the oil spreads on the surface of water.
(b) The following data was obtained from an experiment to determine the size of a palm oil molecule.
FORM I - PHYSICS SYLLABUS
FORM II - PHYSICS SYLLABUS
FORM III - PHYSICS SYLLABUS
FORM IV - PHYSICS SYLLABUS
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