Thermal Energy

When cooking, the heat energy goes from the burner to the bottom of the pan and then to the soup. This is an example of:

• Conduction
• Convection
• Radiation

What You would conclude if an object felt hot to the touch in the classroom?

• It has a low melting point
• It is a good insulator
• It conducts thermal energy easily

The object with the most thermal energy is ______________.

• a pond
• a hot tub or sauna
• a pot of boiling wate

The three types of heat transfer are:

• Radioactivity, convector and construction
• Radiation, convection and conduction
• Radiographic, conviction and conduction

What are the two things determine an object’s thermal energy?

• Mass and weight
• Heat and insulation
• Size (particle count) and temperature

Which of these is false:

• Really cold objects have no thermal energy
• Heat is the transfer of thermal energy from object to object.
• The direction in which heat energy moves is always goes from the warmer object to the colder.

When you touch a piece of metal that is at room temperature, it feels cold. When you touch a piece of wood at room temperature, it doesn’t feel cold. Why?

• It takes metal a long time to become warmer and wood a shorter time.
• The specific temperature of the metal is much lower than the wood.
• The shiny surface of the metal reflects the heat from the room.

If an ice cube is added to a warm drink, what changes about the thermal energy of the molecules in the ice cube and drink?

• Thermal energy transfers from the drink to the ice cube.
• The ice cube transfers its cold to the warm soda.
• The cold from the ice cube and warmth from the soda mix together

Unlike other types of thermal energy, this type does not require a solid, liquid or gas

• Convection
• Conduction
• Radiation