10.3 Flashcards
1
Q
what is the SI unit for temperature?
A
K/kelvin
2
Q
Opening a jar
A
place lid in hot water makes it easier to unscrew lid as the lid expands more than the jar
3
Q
Bimetallic strip
A
made up of 2 metals that expand at different rates upon the same temperature
4
Q
hot air balloon
A
When heated, the volume in the hot air balloon increases hence, the density decreases. The hotter and less dense air rises causing the hot air balloon to float
5
Q
what materials are used in bimetallic strips
A
brass
steel
6
Q
which material contracts/expands more than the other
A
brass
