Ecz Science grade 12 gce 2017 paper 1
1) A thermos flask contains a vacuum. What Is the purpose of this vacuum? Prevents …
a) conduction and radiation,
b) conduction and convection,
c) radiation and convection,
d) onduction,convection and radiation.
A19 Which of the following is correct ab Cathode Ray Oscilloscope?
A Deflecting the electron beam vertical!
B Deflecting the electron beam horizontally
C Deflecting the electron beam vertically ari-borizontally
D Increasing the speed of the electron beam
A20 The diagram below shows a box used for storing radioactive sources.
B3 Figure B3.1 shows a ramp being used to lift a box weighing 480N through a distance of 3 metres and a height of 1 metre by applying a force F of 200N.
Past paper for 2017
June 22, 2024
Chongo judith