Heat transfer
This is the transfer of thermal energy from a warmer object to a cooler one.
What is heat?
In this type of heat transfer, hotter air rises and cooler air sinks.
What is convection?
These materials are poor conductors and help reduce heat loss in homes.
What are insulators?
This process requires particles to move and carry heat in liquids or gases.
What is convection?
When you touch a metal spoon in hot soup and it feels hot, this transfer is happening.
What is conduction?
This type of surface absorbs more radiation than light, smooth ones.
What are dark, rough surfaces?
Metals are good at this type of heat transfer.
What is conduction?
The reason you feel heat from a fire without touching it.
What is radiation?
These objects feel cold because they carry heat away from your hand quickly.
What are Conductors / metal objects?
This type of heat transfer can occur through a vacuum and doesn’t need particles.
What is radiation?
This material is a poor conductor and is trapped in warm clothes.
What is air (trapped in fibres or bubbles)?
True or false air is a good conductor
false
Fibreglass and air both reduce this unwanted heat transfer process.
What is insulation?
The movement of heat by convection involves this movement of fluid.
What is a convection current?
This type of object reflects some heat
What are light or white objects