Front

What happens to sugar particles when added to hot water compared to cold water?

Back

Sugar particles dissolve more quickly in hot water than in cold water.

Front

What occurs to gas inside a container when thermal energy is added?

Back

The gas will expand.

Front

What happens to the particles in matter when they are cooled?

Back

The particles move more slowly.

Front

What happens to the particles in matter when they are warmed?

Back

The particles move more quickly.

Front

What are the two effects on gases when they are heated?

Back

Gases expand and rise.

Front

Define thermal energy.

Back

Thermal energy is the total kinetic energy of particles in a substance, which increases with temperature.

Front

What is the relationship between temperature and particle movement in matter?

Back

As temperature increases, particle movement increases; as temperature decreases, particle movement decreases.

Front

Explain the concept of expansion in gases when heated.

Back

When gases are heated, their particles gain energy, move faster, and spread apart, causing the gas to expand.

Front

What is the principle behind why hot air rises?

Back

Hot air is less dense than cold air, causing it to rise.

Front

How does the kinetic theory of matter explain the behavior of particles in different states of matter?

Back

The kinetic theory states that all matter is made of particles that are in constant motion; the speed and arrangement of these particles determine the state of matter.