Thermal Energy and Energy Transfer

A barefoot student steps on a hot concrete surface. Most of the heat transferred to the student’s skin by this contact is by the process of—

• convection
• conduction
• vaporization
• radiation

The diagram to the right shows a solid iron bar that is being heated in a flame. The primary method of heat transfer in the solid iron bar is—

• convection
• conduction
• absorption
• radiation

A student opens the top window and the bottom window in a hot room. What statement best describes the heat transfer occurring in the room?

• conduction
• radiation
• convection
• evaporation

what is conduction?

• direct touch
• air or liquids
• heat waves/ light waves
• drinking hot coffee

what is convection

• direct touch
• air or liquids
• heat waves or light waves
• sunbathing outside

Which is not chemical energy?

• Food

• Gasoline (fuel)

• Batteries

• Water

What type of energy is this?

• Chemical

• Elastical

• Gravitational

• Nuclear

Plants need the sun for _____________________ energy.

• Light / Radiant

• Sound

• Chemical

• Electrical

Animals eat plants, so this means that plants are _________________ energy.

• Gravitational

• Light / Radiant

• Chemical

• Thermal / Heat

Light can also be called

• Sound

• Radiant

• Power

• Silica