7.8ABC Test Review - Thermal Energy & Kinetic Energy

From the spoon to the water

From the water to the spoon

Both directions equally

It doesn’t move

Heat from a campfire warming your hands

A metal spoon becoming hot while stirring soup

Warm air rising in a room

The sun warming the ground

Gas to liquid when heat is removed

Solid to liquid when heat is added

Liquid to solid when heat is removed

Liquid to gas when heat is added at the surface

Evaporation transfers molecules to the air as heat is added at the surface

Conduction pulls water into the ground through direct contact

Convection currents lift liquid water into clouds without phase change

Radiation converts liquid water directly into solid ice

Convection

Conduction

Radiation

Electromagnetic waves traveling through space

Bulk movement of liquids or gases

Direct contact and particle collisions

Conversion of thermal energy to light

Cold hands warming a hot mug

A hot skillet cooling when placed on a cold counter

An ice cube warming a steaming cup of tea

Warm room air cooling a block of ice by conduction from the ice to the air

Decreases

Increases

Remains constant

Becomes undefined

Radiation — requires particles to collide

Conduction — energy transfer by direct contact

Convection — transfer by electromagnetic waves

Conduction — movement of fluids carrying heat

Conduction through the air to the hands

Convection within the metal fire ring

Radiation from the flames to the hands

Evaporation from the skin to the fire