Thermal Energy

All objects are made out of?

Small particles

The small particles are constantly in? And what type of energy do they have?

The small particles are constantly in motion. This means they have kinetic energy.

Particles are arranged in ____ in _____ objects.

Particles are arranged in specific ways in different objects.

What energy do the particles also have?

Internal energy.

The total kinetic and potential energy of all the particles in an object is called?

Thermal energy. This total energy can also be called internal energy.

Objects contain ____ or ____ even if they do not feel hot.

Objects contain thermal or internal energy even if they do not feel hot.

What is the SI unit for energy?

The joule

The thermal energy of an object changes when?

When heat is transferred to or from the object.

Heat is the energy that is?

Heat is the energy that is transferred from a warmer object to a cooler object.

As the warmer object ________, the cooler object ________ until the two object are at the _________. Once this happens, heat stops transferring between the two objects.

As the warmer object cools down. The cooler object warms up until the two objects are at the same temperature. Once this happens, heats transferring between the two objects.

Heating a substance can cause its particles to ________

Heating a substance quickly

For example, when a popsicle is held in sunlight, the particles in the popsicle gain kinetic energy. As a result, the temperature of the popsicle increases.