Review: Convection, Conduction, Radiation

How does convection affect weather patterns?

• Convection currents in the atmosphere help distribute heat, leading to wind patterns and weather changes.

• Convection has no effect on weather patterns whatsoever.

• Convection only affects ocean currents, not atmospheric conditions.

• Convection is responsible for the formation of clouds but not for wind patterns.

How does insulation reduce heat transfer?

• By increasing conduction and convection

• By minimizing conduction, convection, and radiation

• By allowing heat to escape easily

• By trapping heat inside a space

What is a convection current?

• A process where warm fluid rises and cool fluid sinks, creating a cycle.

• A method of heat transfer through direct contact between materials.

• A phenomenon where cold air is heated by the sun and rises into the atmosphere.

• A type of current that only occurs in solid materials.

How does radiation affect the Earth's temperature?

• Radiation from the Sun warms the Earth, providing the energy necessary for life.

• Radiation cools the Earth by reflecting sunlight back into space.

• Radiation has no effect on the Earth's temperature.

• Radiation only affects the temperature of the atmosphere, not the Earth's surface.

Example of Conduction in everyday life?

• Touching a hot metal spoon that has been in a pot of boiling water; the heat transfers from the spoon to your hand.

• Boiling water in a pot on the stove.

• Using a microwave to heat food.

• Feeling the warmth of the sun on your skin.

What is the difference between conduction and convection?

• Conduction is heat transfer through direct contact, while convection is heat transfer through the movement of fluids.

• Conduction involves the movement of fluids, while convection is heat transfer through direct contact.

• Conduction is the transfer of heat through radiation, while convection is the transfer of heat through solids.

• Conduction and convection are both forms of heat transfer that occur only in gases.

How does the density of fluids affect convection?

• Warmer fluids are denser and sink, while cooler fluids are less dense and rise, creating a cycle.

• Warmer fluids are less dense and rise, while cooler fluids are denser and sink, creating a cycle.

• Density has no effect on convection; it is solely dependent on temperature.

• Fluids with the same density will always rise together, regardless of temperature.

What role does conduction play in cooking?

• Conduction allows heat to transfer from the stove to the pan, cooking the food inside.

• Conduction prevents heat from escaping, keeping the food cold.

• Conduction is the process of mixing ingredients while cooking.

• Conduction is used to cool food quickly after cooking.

What is Convection?

• The transfer of heat through the movement of fluids (liquids or gases).

• The process of heat transfer through direct contact between materials.

• The transfer of heat through electromagnetic waves.

• The movement of air caused by temperature differences.

What is Conduction?

• The transfer of heat through direct contact between materials.

• The process of heat moving through empty space.

• The method of generating electricity through heat.

• The transfer of heat through the movement of fluids.