Unit 7: Thermal Energy and Heat (Physical Science)

In nature, heat always flows from a:

• cold object to a warm object.
• small object to a big object.
• warm object to a cold object.
• large object to a small object.

Heat energy from the sun is transferred to Earth by:

• conduction.
• radiation.
• convection.
• insulation.

Heat is the movement of ______.

• radiation
• thermal energy
• cold
• fire

Heat moves by ______ when it travels through waves.

• radiation
• conduction
• insulator
• convection

Heat moves by ______ when it travels from one solid to another solid.

• radiation
• convection
• thermal energy
• conduction

The way heat moves in liquids and gases is called _______.

• convection
• radiation
• conduction
• temperature

The heat from a hot burner to a pot is transferred by ______.

• convection
• insulation
• radiation
• conduction

Heat from the sun travels to Earth by _____.

• conduction
• convection
• insulation
• radiation

As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.

• increases
• decreases

The measure of average kinetic energy of all the particles within an object is called ____________. 

• temperature
• conduction
• radiation
• heat