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Science Question Paper

Science

Course:Certificate In Electrical Installation

Institution: Christian Industrial Training Centre question papers

Exam Year:2012

1) Define the term -Force
-Work (4mks)

2)Describe any two forms of energy (4mks)

3)Explain the statement 'energy can never be destroyed' (1mk)

4) A battery is used to power a motor vehicle.
State the energy conversions that take place(3mks)

5) Distinguish between energy and power, giving their S.I units(4mks)

6) State the three basic qualities in physics and their units(3mks)

7) Convert the following figure into the form of powers of ten with one figure before the decimal point;
a)10023 b)0.002107 c)7/20 d)5/750 (4mks)

8) Write the following figures in full: a) 500m cuolmbs
b)0.2MWatts
c)50m Amperes
d)100x10
e)1735x10 Newtons (5mks)
9) Define the following quantities and give their S.I units and symbols
a)Mass
b)Weight
c)Time (6mks)

10) Calculate the power a boy will need to lift a 40kg of mortar through a vertical height of
seven stairs each 45cm high in 0.5minutes. (Assume g= 9.8 m/s)

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