Intro to Ecology Practice Questions

Front

What is conduction?

Back

Conduction is the process by which heat is transferred through a material without the movement of the material itself, typically occurring in solids.

Front

Why do metals feel colder than plastics at the same temperature?

Back

Metals conduct heat away from your hand faster than plastics.

Front

What happens to water molecules as they freeze?

Back

They move slower and form a fixed arrangement.

Front

What occurs to gas molecules when they are heated?

Back

They move faster and spread further apart.

Front

What is the behavior of molecules in a solid?

Back

Molecules in a solid vibrate in fixed positions and are closely packed together.

Front

What happens to the volume of water when it freezes?

Back

Water expands when it freezes, which is why ice floats.

Front

What is thermal expansion?

Back

Thermal expansion is the increase in volume of a substance as its temperature rises.

Front

What is the relationship between temperature and molecular movement?

Back

As temperature increases, molecular movement increases.

Front

What happens to the molecules in a liquid when heated?

Back

They move faster and may spread apart, leading to a change in state if heated enough.

Front

What is the principle behind thermometers?

Back

Thermometers work on the principle of thermal expansion of liquids.