Read About Thermal Energy

Energy of vibrating particles in a substance

Energy stored only in chemical bonds

Energy from objects because of their height

Energy created by electric charges moving

Average kinetic energy of its particles

Total number of atoms in the sample

Exact speed of each individual particle

Amount of space between the molecules

faster on average than in the colder object

slower on average than in the colder object

at the exact same speed as the colder object

only when heat is added from electricity

Particles move faster and slide past each other

Particles stop moving and lock permanently

Particles move slower and pack closer together

Particles spread infinitely with no collisions

from a hotter area to a colder area

from a colder area to a hotter area

only when both areas have equal heat

only through metals and never through air

Heat

Work

Friction

Power

Foam cup with trapped air spaces

Thin metal cup with shiny surface

Glass cup with thick liquid inside

Wet cloth wrapped around the cup

They contain air spaces that transfer energy poorly

They are heavy and press particles together tightly

They allow particles to collide more frequently

They reflect light which cools the container quickly

reduce particle collisions that carry thermal energy

increase air pressure to warm the liquid faster

add more molecules to absorb cold from outside

speed up conduction through the container walls

Burning wood in a campfire

Activating an instant cold pack

Evaporating water into steam

Dissolving salt into cold water