Question

NUMERICALS:
[8 marks]
1) The density of brass is 8.4 g cm. What do you mean by this statement?
2) The dimensions of a hall are 10m x 7m x 5m. If the density of air is 1.11 kgm , find
the mass of air in the hall,
3) The density of aluminium is 2.7 gcm Express it in kg m
4) Calculate the volume of wood of mass 6000 kg
if the density of wood is 0.8 g cm
ANSWER THE FOLLOWING:
(12 marks]
1) State the laws of floatation.
2) Name and define the characteristic which enables one to distinguish two
sounds of same loudness, but of different frequencies, given by the same
instrument.
3) Name three characteristics of musical sound.
4) Lightning and thunder take place in the sky at the same time and at the same
distance from us. Lightning is seen earlier and thunder heard later.
Can you explain why?
5) Why does a piece of iron sink but a ship made of iron floats?
6) Two identical guitars are played by two persons to give notes of the same
pitch. Will they differ in quality? Give reason for your answer.​

Answer 1

Answer:

ho god! idk lol

Explanation:

Answer 2

If all we do so what you will do lol