14.2: linear expansion
formula for linear expansion
ΔL = αLΔ
formula for area expansion
∆A = (coefficient of area expansion) (∆T)
formula for volume expansion
∆V=βV∆T
bimetallic
A ____ strip is made of two separate strips of metal stuck together. A strip made of two different metals that expand at different rates.
more
The particles in a solid vibrate _____ when it is heated, and take up more room.
liquid
The particles in a________ move around each other more when it is heated, and take up more room.
area expansion
Upon being heated, a solid expands not only in every linear dimension, but also in cross sectional area
cold
When the particles are, ___ they are closer together and vibrate less.
Thermometers
______ are an example of using thermal expansion.
space
It is the ___ between the particles that changes when substances expand or contract, not their size
joints
Materials expanding bridges expand in the summer heat and need special ______ to stop them bending out of shape.
volume expansion
The increase in volume of fluids when heated
gas
The particles in a ____ move more quickly in all directions when it is heated, and take up more room.
coefficient of thermal expansion
the measurement of change in volume or length in relationship to change in temperature
thermal expansion
the tendency of matter to change in volume in response to a change in temperature.
