Heat transfer I

Heat always travels from hot objects to cold objects

• true

• false

Select the three types of heat transfer

• conduction

• convection

• radiation

• insulation

You accidentally touch a hot pan. This heat transfer is

• direct contact

• conduction

• convection

• radiation

Eggs frying on a pan is an example of what type of heat transfer?

• Cooking

• Conduction

• Radiation

• Insulation

Radiation doesn't need material to transfer heat from one place to another

• true

• false

What type of heat transfer is sunlight warming you up?

• radiation

• conduction

• convection

• indirect contact

Convection transfers heat through

• direct contact with an object

• fluids like air or water heating up and moving around

• water heating up

• an electromagnetic wave

Hot air rises because it is

• less dense than cold air

• more dense than cold air

• has the same density as cold air

• hot air doesn't rise

A room heater transfers heat throughout the room with

• conduction

• convection

• radiation

• insulation

The water movement in this kettle is called

• convection currents

• radiation currents

• insulation currente

• conduction currents