Year 9 - Physics - 24.10.14

Thai Sikh International School

E-Learning Programme – Online Assignment –   dd/mm/yyyy

Name :                                                                         Subject :Physics 

Year   :  9                                                                     Schedule No. : 3                        

1.Use the information below to decide which crown is gold, which is silver, and which is a mixture.

	CROWN –A	CROWN-B	CROWN-C
Mass/gram	3750	3750	3750
Volume/cm3	357	194	315

 Density: gold: 19.3g/cm³;  silver: 10.5g/cm³.

2. How did Archimedes discover the purity of the gold?.

3. Which block is made of the densest material?.

Block	Mass/gm	Length/cm	Breadth/cm	Height/cm
A	480	5	4	4
B	360	10	4	3
C	800	10	5	2
D	600	5	4	3