Thermal expansion is the tendency of matter to increase in size, volume, or length when it is heated.
What causes thermal expansion?
Thermal expansion is caused by the increased motion of atoms and molecules when they are heated.
What are the three main types of thermal expansion?
The three main types of thermal expansion are linear expansion, area expansion, and volume expansion.
What is linear expansion?
Linear expansion is the increase in length of an object when it is heated.
What is area expansion?
Area expansion is the increase in surface area of an object when it is heated.
What is volume expansion?
Volume expansion is the increase in volume of an object when it is heated.
Give an example of linear expansion.
An example of linear expansion is the expansion of railroad tracks in hot weather.
Give an example of area expansion.
An example of area expansion is the expansion of a metal sheet when it is heated.
Give an example of volume expansion.
An example of volume expansion is the expansion of a liquid in a glass container when heated.
How can thermal expansion be useful?
Thermal expansion can be useful in applications such as thermometers, thermostats, and bimetallic strips.
What is the coefficient of linear expansion?
The coefficient of linear expansion is a constant that relates the change in length of an object to the change in temperature.
What is the formula for linear expansion?
The formula for linear expansion is ΔL = αL0ΔT, where ΔL is the change in length, α is the coefficient of linear expansion, L0 is the initial length, and ΔT is the change in temperature.
What is the coefficient of volume expansion?
The coefficient of volume expansion is a constant that relates the change in volume of an object to the change in temperature.
What is the formula for volume expansion?
The formula for volume expansion is ΔV = βV0ΔT, where ΔV is the change in volume, β is the coefficient of volume expansion, V0 is the initial volume, and ΔT is the change in temperature.
What is the coefficient of area expansion?
The coefficient of area expansion is a constant that relates the change in surface area of an object to the change in temperature.
What is the formula for area expansion?
The formula for area expansion is ΔA = βA0ΔT, where ΔA is the change in surface area, β is the coefficient of area expansion, A0 is the initial surface area, and ΔT is the change in temperature.