Measure the initial temperature of
a
kilogram of lead shot. Put the lead shot in the tube and cork
securely. Invert the tube fifty times. Replace solid cork
with one-hole cork and
thermometer and measure the final temperature of the lead.
N*mgh = mcpΔ
T
h = 1 m
cp,Pb = 128 J/kg*K
ΔT = 3.8 K
NOTES
Use 15-40°C mercury
thermometer,
or better yet, the thermocouple probe with the big digital display.