Chapter 13

Question 1

A bimetallic strip, consisting of metal G on the top and metal H on the bottom, is rigidly attached to a wall at the left. (See figure below.) The coefficient of linear thermal expansion for metal G is greater than that of metal H. If the strip is uniformly heated, it will ________

Answer 1

curve downward

Question 2

The coefficient of linear expansion for aluminum is 1.8 x 10^-6 (°C)-1. What is its coefficient of volume expansion?

Answer 2

5.4 x 10^-6 (°C)-1

Question 3

Which temperature scale never gives negative temperatures?

Answer 3

Kelvin

Question 4

Express -40°C in °F.

Answer 4

-40° C

The only temp where celsius and farenheit equal each other

Question 5

A steel bridge is 1000 m long at -20°C in winter. What is the change in length when the temperature rises to 40°C in summer? (The average coefficient of linear expansion of steel is 11 x 10^-6 /°C.)

Answer 5

0.66 m

Question 6

The volume coefficient of thermal expansion for gasoline is 950 x 10^-6 /°C. By how much does the volume of 1.0 L of gasoline change when the temperature rises from 20°C to 40°C?

Answer 6

19 cm^3