
Objective: To calculate the thickness of a sheet of aluminum foil and express the answer in terms of proper scientific notation and significant figures
Supplies: 3 rectangular pieces of aluminum foil (minimum 15cm*15cm); metric ruler and centigram balance.
Experimental results:
Table 1
sheet Length(cm) Wideth(cm) Mass(g)
1 16.8 15.4 1.02
2 15.8 15.0 0.95
3 17.2 17.0 1.16
Formulars:
Volume of a rectangular solid: V=L*W*H
Density: D=M/V
H(average)=(H1+H2+H2)/3
Example:
Sheet1: 2.70g/cm^3=1.02g/(16.8cm*15.4cm*H) H1=1.46*10^-3cm
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