Galileo Galilei invented an early thermoscope to detect temperature changes. If the liquid column in a…
Galileo Galilei invented an early thermoscope to detect temperature changes. If the liquid column in a demonstration model rises by $3\text{ cm}$ for every $2^\circ\text{C}$ drop in temperature, how much will it rise for a drop of $6^\circ\text{C}$?
$6\text{ cm}$
$9\text{ cm}$
$12\text{ cm}$
$18\text{ cm}$
Solution
A $6^\circ\text{C}$ drop is three times $2^\circ\text{C}$, so the liquid column rises $3 \times 3\text{ cm} = 9\text{ cm}$.