Energy.Convection

Which best describes the process of convection?

• Convection is the primary way  heat travels  through rays.
• Convection is the primary way heat travels  through metals.
• Convection is the primary way heat travels  through appliances.
• Convection is the primary way heat travels  through liquids and gasses.

How is heat transferred when boiling a pot of water on the stove?

• conduction
• convection
• combustion
• radiation

What is the definition of CONVECTION

• When heat transfers through waves.
• When heat transfers from objects that are touching.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• Heat traveling from the sun

Heat transfers from an area of ____temperature to an area of ___ temperature.

• high to low
• low to high
• high to high
• It can travel high to low and low to high. 

At the seashore late in the afternoon on a hot day, a person often feels a strong breeze coming from the ocean because...

• the pounding waves generate air currents
• warm air over the ocean rushes in to replace the cool air that rises over the land
• the heavy, cool air over the ocean rushes in to replace the warm air that rises over the land
• there are no clouds to block the wind coming in from the ocean

In convection, COOL air

• Rises
• Sinks

In convection, WARM air

• Rises
• Sinks

Near the ceiling of a room the air is warmer.  The warm air rises because of

• conduction
• convection
• radiation

Convection currents occur due to _____.

• rotation of earth

• gravitational pull

• electrons moving

• differences in temperature and density

what two classifications can many types of energy be put into?

• thermal and gravitational

• mechanical and chemical

• Kinetic and potential

• chemical and potential