Chamwino DC Physics Form Four Weekly Test February 2026 – Chamwino DC
Download Physics Form Four Weekly Test February 2026 – Chamwino DC for free.
PHYSICS FORM FOUR WEEKLY TEST FEBRUARY 2026 – CHAMWINO DC
5. (a) The velocity of car A relative to car B is 5m/s when the two cars are moving in the same direction and 15m/s when the two cars are moving in the opposite directions. Determine the velocity of each car. (05 marks)
(b) )It is found that a uniform wooden lath 100cm long and mass 95g balances on aknifeedgewhena5gmassishung10cmfromoneend.Howfaristheknifeedge from the centre of the
lath? (05 marks)
6. (a) Briefly explain why a straight stick appears to be bent when partially immersed in a beaker of water? (04marks)
(b) A pin at the bottom of the vessel 0.16m deep, when the vesselis filled with water it appear to rise when viewed from above. By what depth does the pin appear to be raised if the refractive index of water is 1.33? (05 marks)
7. (a) Explain briefly why ships float while a piece of iron sinks in water? (04 marks)
(b) A piece of cork of volume 100cm3 is floating on water. If the density of cork is 0.35g/cm3 . Calculate the volume of cork immersed in water (05 marks)
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