Harford Community College
Physical Science I Measurement Lab 2 (SCI 106)
Note: Answer all questions and submit one hard copy per group. You may
use the copy for draft notes.
1. Measure the density of wood blocks. First, measure the dimensions,
then the mass. The mass density is then D = M/V.
Sample Length
(cm)
Width
(cm)
Depth
(cm)
*Volume
(cc) Mass (g) *Density
(g/cc)
1
2
Question 1: What is your measurement error? __________ cm
Question 2: Do your measurements fall within accepted limits ?
(wood: 0.3-0.8 g/cc, less than water=1.0 g/cc) _____
Question 3: What is the weight of a tree trunk made of Sample 1
in Newtons (N) with diameter 2.0 m and height 40 m ?
1
d
H
Mass = Density Volume
Volume = Height Area of Base
= H ( d2 / 4 )
= _______ ______ 2 / 4
= _______ m3
Density = ______ g/cc = ______ kg/m3
M = D V = ______ ______ = ______ kg
W = Mg = ______ 9.8 m/s2 = ______ N
