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.