Name:…………………………………………………………………………………
Adm. No. ……………Class: ………………………Signature:…………………….
232/3
PHYSICS
PRACTICAL
FEBRUARY 2022
TIME: 2 ½ HRS
M O K A S A J O I N T E X A M I N A T I O N - 2022
Kenya Certificate of Secondary Education
PHYSICS PAPER 3
PRACTICAL
Instructions
Write your name, admission number, class and signature in the spaces provided at the top of
the page.
Answer all the questions in the spaces provided in this paper.
You are supposed to spend the first 15 minutes of the 2 ½ hours allowed for this paper
reading the whole paper carefully before your start.
Marks will be given for clear record of observations actually made, for their suitability and
accuracy, and the use made of them.
Candidates are advised to record their observations as soon as they are made.
Electronic calculators and mathematical tables may be used.
FOR EXAMINER’S USE ONLY
Question(s) Maximum Score Candidate’s Score
1 20
A 11
2
B 9
TOTAL 40
This paper consists of 8 printed pages. Candidates are advised to check and to make sure all pages are
printed.
QUESTION ONE.
1|Page
, You are provided with the following;
2 new dry cells
Cell holder
Ammeter (0-1A)
Voltmeter
6 connecting wires (at least 3 with crocodile clips)
Nichrome wire mounted on millimeter scale
Micrometer screw gauge (may be shared)
Jockey .
Proceed as follows;
a) Using micrometer screw gauge, measure the diameter, D of the nichrome wire.
i) D = __________________________ mm
ii) D = __________________________ m (1mark)
iii) The cross sectional area A is obtained by;
2
A=π r Where r = D/2
Determine the cross sectional area (A) in SI units. (2marks)
…………………………………………………………………………………………………
…………………………………………………………………………………………………
…………………………………………………………………………………………………
b) Set up the apparatus as shown below.
c) Record the e.m.f across the terminals of the dry cells when the switch is open.
2|Page
Adm. No. ……………Class: ………………………Signature:…………………….
232/3
PHYSICS
PRACTICAL
FEBRUARY 2022
TIME: 2 ½ HRS
M O K A S A J O I N T E X A M I N A T I O N - 2022
Kenya Certificate of Secondary Education
PHYSICS PAPER 3
PRACTICAL
Instructions
Write your name, admission number, class and signature in the spaces provided at the top of
the page.
Answer all the questions in the spaces provided in this paper.
You are supposed to spend the first 15 minutes of the 2 ½ hours allowed for this paper
reading the whole paper carefully before your start.
Marks will be given for clear record of observations actually made, for their suitability and
accuracy, and the use made of them.
Candidates are advised to record their observations as soon as they are made.
Electronic calculators and mathematical tables may be used.
FOR EXAMINER’S USE ONLY
Question(s) Maximum Score Candidate’s Score
1 20
A 11
2
B 9
TOTAL 40
This paper consists of 8 printed pages. Candidates are advised to check and to make sure all pages are
printed.
QUESTION ONE.
1|Page
, You are provided with the following;
2 new dry cells
Cell holder
Ammeter (0-1A)
Voltmeter
6 connecting wires (at least 3 with crocodile clips)
Nichrome wire mounted on millimeter scale
Micrometer screw gauge (may be shared)
Jockey .
Proceed as follows;
a) Using micrometer screw gauge, measure the diameter, D of the nichrome wire.
i) D = __________________________ mm
ii) D = __________________________ m (1mark)
iii) The cross sectional area A is obtained by;
2
A=π r Where r = D/2
Determine the cross sectional area (A) in SI units. (2marks)
…………………………………………………………………………………………………
…………………………………………………………………………………………………
…………………………………………………………………………………………………
b) Set up the apparatus as shown below.
c) Record the e.m.f across the terminals of the dry cells when the switch is open.
2|Page
