2019 KCSE physics paper 1 marking scheme
- Actual reading= 0.38mm
( error) = 0.03 -Meter reading = 0.35mm ✓ - On sucking air rushes into the straw ✓ through the hole making it difficult ✓ to reduce pressure in the straw by sucking
- – Using detergents/impurities
– Raising the temperature - The flask absorbs heat from the hands and first expands✓ hence level of liquid ✓ which expands more than the glass causing the rise. ✓
- Wax on rod B drops off first. ✓
The thicker rod conducts heat faster than the thinner one. ✓
2019 KCSE physics paper 2 marking scheme
2. An uncharged conductor will also cause a decrease on the divergence of the leaf.
OR
Both positively charged conductor and an uncharged body cause a decrease in divergence.
3. – Do not cross one another.
– They are complete loops.
– Direction of field is from North to South.
They are normal to the surface at the poles.
Closer at the poles and further apart away from the poles. Any two ✓
4 (b) – Increasing the number of turns in the coil. ✓
– Increasing the current ( or number of cells). ✓
8. – To sterilize medical equipment ✓
– To kill cancerous cells and malignant growths in the body. ✓
9. During the first half cycle of the input signal, current flows in the first diode, ✓
During the second half cycle of the input signal, current flows in the sec-ond diode, ✓
When the currents through the two diodes are combined a fully rectified wave signal is obtained as the output signal. ✓
10. By increasing the heating current in order to produce more electrons. ✓ Increasing the filaments current.
Increasing the temperature of the cathode.
11. – Fuse in the neutral wire ✓ instead of the live wire.
– Switch to lamp on the neutral ✓ wire instead of live wire.
– Connection of lamp B on Live wires only.
12. Alpha particle. ✓
13. Shows the object as being further than it actually is. ✓
Shows diminished images.
14l Infrared ✓
2019 KCSE physics paper 3 marking scheme
QUESTION2
PART A MARKING SCHEME
a) Centimeter mark = 50.1cm
b) (i) d = 11.3 cm
d = 0.113m
c) (i) V=17cm3
ii) V1 = 19.5cm3 d1 = 10cm
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Good evening kindly assist how to get 2019 KCSE marking scheme
Hello,
I have the 2019 KCSE past papers- Questions and Answers. Kindly follow the procedure on the post to get the marking scheme
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