Thermal Properties and Temperature 1 - Y10C

Front

What is the difference between temperature and heat?

Back

Temperature refers to how hot or cold something is, while heat (or thermal energy) refers to the total energy of all particles in an object.

Front

What happens to particles in a substance as temperature rises?

Back

The particles gain kinetic energy and move faster.

Front

What is thermal expansion?

Back

Thermal expansion is the phenomenon where materials expand when heated due to increased particle movement.

Front

How does thermal expansion differ in solids, liquids, and gases?

Back

It is most noticeable in gases, less noticeable in liquids, and least noticeable in solids.

Front

What is an example of thermal expansion in solids?

Back

Metal rods expand slightly when heated.

Front

What is the working principle of a liquid thermometer?

Back

As the liquid inside warms up, it expands and rises through a calibrated narrow tube.

Front

What happens to gases when they are heated?

Back

Gases expand the most because their particles move freely and collide with container walls with more force.

Front

What are bimetallic strips used for?

Back

They are used in thermostats to activate or deactivate a switch based on temperature changes.

Front

Why must cookware made from glass be specially designed?

Back

Ordinary glass would shatter due to uneven expansion when rapidly heated.

Front

What unusual property does water have when it freezes?

Back

Water expands when it freezes, making ice less dense than liquid water.