Get premium membership and access revision papers with marking schemes, video lessons and live classes.
  OR
Processing. Please wait.

 Form 1 Physics Measurement 1 Video Questions and Answers

Describe an experiment to find the density of copper turnings using a density bottle and kerosene.

 (6m 6s)
2123 Views     SHARE

Answer Text:
- Measure the mass m_0 of a clean dry empty density bottle.
- Fill the bottle partly with copper turnings and measure massm1.
- Fill up the bottle with kerosene up to the neck and measure its mass as m2.
- Empty the bottle and rinse it.
- Fill it with kerosene and replace it with the stopper, wipe outside dry and measure the mass m_3 of the bottle filled with kerosene.
Results
Mass of kerosene= (m3-m0)g
Volume of kerosene = (m3-m0)0.8cm3
(Since density of kerosene 0.8gcm-3)
Mass of copper turnings =(m1-m0)g
Mass of kerosene present when the bottle is filled with copper turnings and kerosene =(m2-m1) g
Volume of kerosene = (m2-m1)0.8cm3
Volume of copper turnings = {(m3-m0)-(m2-m1)}0.8cm3
Therefore density of copper turnings = 0.8(m1-m0){(m3-m0)-(m2-m1)}


|