Quiz on Thermal Expansion

Thermal expansion only affects metals.

• True

• False

Most materials expand when heated and contract when cooled.

• True

• False

Thermal stress occurs when a material is free to expand without constraint.

• True

• False

The linear expansion coefficient is the same for all materials.

• True

• False

A cavity inside a solid object expands when heated, just like the solid itself.

• True

• False

Invar steel is used for making pendulum clocks because of its high thermal expansion.

• True

• False

Expansion joints are used in bridges to cool the joints during thermal expansion.

• True

• False

Pyrex glass is designed to have a high thermal expansion coefficient.

• True

• False

The rate of thermal expansion of a thin rod is greater than that of a thick rod when the same amount of heat is applied.

• True

• False

Thermal stress in materials can lead to structural failure.

• True

• False