8.a. State the physical quantities

3 marks

b.i. Define SI unit:

____________________________________________________________________________________________________________________________________

1 mark

ii. State three SI units from 8(a)

__________________________________________________________________

2 marks

iii. Name the right tools used for each of the SI units from 8(b)ii

_________________________________________________________________

2 marks

c.State two importance of SI unit __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

2 marks

9. Diagram 9.0 shows two laboratory apparatus, K and L.

a. Name the above laboratory apparatusi. K: ______________________

ii.L: _______________________2 marksb. Complete the diagram 9.1

4 marks

c. Diagram 9.2 shows a curve line. Its length can be measured by using L.

Diagram 9.2

Explain briefly another method of measuring the length of this curve without using L.

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

2 marksd. Diagram 9.3 show a method used to measure thickness of a wall of a beaker.

The external diameter of the beaker: 5.0 cm

The internal diameter of the beaker: 4.0 cm

Calculate the the thickness of the wall of the beaker.

2 marks10.Diagram 10 shows an experiment used to determine the volume of ten nails.

a. i. Name apparatus P__________________________________________________________________

1 mark

ii. Name the unit and symbol used in this experiment

__________________________________________________________________

2 marks

iii. What is the name of this method__________________________________________________________________

1 mark

b. Find the values of

i. X:____________________ii. Y:_______________________

2 marks

c. Calculate the average volume of one nail.

2 marks

d. Name the errors that must be avoided while reading the values of X and Y.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

2 marks

i

iv

iii

ii

Tools used to measure length

Diagram 9.0

Diagram 9.1

Diagram 9.3

K

L

iii

iv

v

ii

i

Physical Quantities

Diagram 10