States of Matter

Front

What is Absolute Zero?

Back

Absolute Zero is the theoretical temperature at which a substance has no thermal energy, equivalent to -273.15 degrees Celsius or -459.67 degrees Fahrenheit.

Front

True or False: Temperature measures the energy of a substance's molecules.

Back

True

Front

What happens to pressure when temperature increases?

Back

Pressure increases when temperature increases, assuming volume remains constant.

Front

Why does food coloring diffuse faster in hot water?

Back

Molecules have more energy in hot water, allowing them to move faster.

Front

What is the Kinetic Theory of Matter?

Back

The Kinetic Theory of Matter states that all matter is made up of tiny particles that are in constant motion.

Front

What is the difference between solids, liquids, and gases in terms of particle arrangement?

Back

In solids, particles are tightly packed in a fixed arrangement; in liquids, particles are close but can move past each other; in gases, particles are far apart and move freely.

Front

What is the effect of temperature on the movement of molecules?

Back

As temperature increases, the movement of molecules increases.

Front

What is a physical change?

Back

A physical change is a change in which the form or appearance of a substance changes, but its chemical composition remains the same.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

What happens to the volume of a gas when it is heated?

Back

The volume of a gas generally increases when it is heated, assuming pressure remains constant.