Y7 Heat Transfer

How is heat transferred in radiation?

• through solids

• through liquids

• through time

• through air or a vacuum

Which best explains why a wooden spoon can be used to stir hot soup on the stove?

• Wood is a good conductor of heat and transfers energy to the spoon.

• Wood is a poor conductor of heat and transfers energy to the spoon.

• Wood is a good conductor of heat and does not allow the transfer of energy to the spoon.

• Wood is a poor conductor of heat and does not allow the transfer of energy to the spoon.

Which best shows an example of convection?

• Jose cooks an egg in a pot of boiling water.

• Clara burns her hand by touching a light bulb.

• Lucy wraps herself in an electric blanket to keep warm.

• Ben holds the end of a metal rod in a fire to cook hot dogs.

Which is an example of radiated heat for cooking?

• cooking a pot of soup

• scrambling eggs on the stove

• grilling cheese on toast

• frying hamburgers in a frying pan

Which substance will conduct the least amount of heat?

• glass

• copper

• plastic

• aluminum

Which is an example of radiation?

• boiling a pot of noodles for dinner

• getting hot from lying in the sun

• feeling warm while taking a shower

• burning yourself after touching a hot plate

Why does an ice cube melt when dropped into hot liquid?

• The liquid absorbs heat from the ice.

• Heat from the liquid transfers to the ice.

• Heat from the ice transfers to the liquid.

• Cold from the ice transfers into the liquid.

Which is the best example of conduction?

• boiling a pot of water

• feeling heat from a fireplace

• a hot air balloon rising and falling

• touching a hot handle and getting burned

Which best describes the transfer of heat due to the movement of gases and liquids?

• radiation

• convection

• evaporation

• condensation

Which best explains why metal is a good material to make frying pans?

• Metal is a good conductor of heat and transfers heat from the stove to the food.

• Metal is a good conductor of heat and does not transfer heat from the stove to the food.

• Metal is a poor conductor of heat and transfers heat from the stove to the food.

• Metal is a poor conductor of heat and does not transfer heat from the stove to the food.