Conduction Convection and Radiation

What is conduction?

• The transfer of heat through direct contact between materials.

• The process of heat moving through a vacuum.

• The movement of heat through fluids by convection.

• The generation of heat through chemical reactions.

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 an insulator?

• A material that allows heat to flow easily.

• A material that resists the flow of heat.

• A type of conductor used in electrical circuits.

• A substance that increases thermal conductivity.

What is radiation?

• Radiation is the transfer of heat in the form of electromagnetic waves.

• Radiation is the process of cooling an object by removing heat.

• Radiation is the movement of particles through a medium.

• Radiation is the reflection of light off a surface.

What is an example of convection in everyday life?

• A hot air balloon taking off, where warm air inside the balloon rises.

• Boiling water in a pot on the stove.

• Ice melting in a glass of warm water.

• Wind blowing through trees on a sunny day.

What is a conductor?

• A material that allows heat to pass through it easily.

• A material that prevents heat from passing through it.

• A type of electrical insulator.

• A substance that absorbs heat without conducting it.

Why is copper often used in electrical wiring?

• Because it is a poor conductor of electricity.

• Because it is an excellent conductor of electricity, allowing efficient energy transfer.

• Because it is very cheap and easy to find.

• Because it is resistant to corrosion.

How does convection affect weather patterns?

• Convection currents in the atmosphere help distribute heat, influencing weather patterns and creating wind.

• Convection has no effect on weather patterns whatsoever.

• Convection only affects ocean currents, not atmospheric conditions.

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

What is an example of conduction?

• An example of conduction is an ice cube melting in a person's hand, where heat is transferred from the hand to the ice.

• An example of conduction is boiling water in a pot on the stove.

• An example of conduction is a fan blowing air in a room.

• An example of conduction is sunlight warming the ground.

What is the role of a conductor in cooking?

• Conductors, like metal pots, transfer heat from the stove to the food, cooking it evenly.

• Conductors are used to insulate food from heat during cooking.

• Conductors help in cooling food quickly after cooking.

• Conductors are materials that absorb heat and do not transfer it.