MATOKEO YA MITIHANI KIDATO CHA PILI 2025
Advanced Certificate of Secondary Education Examinations (ACSEE): Regional Mock Bank of Questions (2023 -2024): For PCB
(a) (i) What is the difference between geostationary satellite
and ordinary satellite?
(ii) The moon has a period of 28 days and an orbital radius
3.8 × 105km. What is the orbital radius of a satellite that has
a period of one day?
(b) (i) A man standing on the turn table raises his hands
suddenly. What would happen?
(ii) Show that the rotational kinetic energy of a ball rolling
over a horizontal plane is 2
7
of its total kinetic energy.
5. (a) (i) A thermometer registers its own – temperature.
Discuss
(ii) Liquid in glass thermometer is mostly used in different
activities such as clinical work and weather recording. Give
four reasons.
(b) Evaluate the rate of flow of heat through a plaster ceiling
with which measures 5m × 3m × 15m.
(i) Without a 45mm thick layer of insulating fiberglass if the
inside and outside surfaces are at the surrounding air
temperature of 150C and 50C respectively.
(ii) With a 45mm thick layer of insulating fiberglass if the
inside and outside surfaces are at the surrounding air
temperature of 150C and 50C respectively.
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