1. Daily applications of thermal expansion and
contraction

2. 1 Troubles with thermal expansion and contraction:
Daily application of thermal expansion and contraction
1 Troubles with thermal expansion
and contraction:
Gaps allow for expansion in summer

3. Overhead cables are slack to allow for contraction in winter
Daily application of thermal expansion and contraction
Overhead cables are slack to allow for contraction in winter

4. 2 Applications of thermal expansion and contraction:
Daily application of thermal expansion and contraction
2 Applications of thermal expansion
and contraction:
Liquid-in-glass thermometer:
mercury or alcohol expands as temperature rises

5. used in irons, ovens and fire alarms
Daily application of thermal expansion and contraction
Metal A
Expand
differently
Metal B
Thermostat
used in irons, ovens and fire alarms