Heat Transfer

Jill notices that her skin gets burned when she sits out in the sun. What best explains why this happens?

• The soil is convecting heat into the air.

• The heat from the sun is being conducted to the Earth.

• The heat from the sun is radiating down to Earth’s surface.

Tags

NGSS.MS-PS1-4

Which is an example of convection?

• the heat coming from a campfire

• a spoon in a bowl of soup becoming warmer

• warmer water at the surface of a swimming pool

Joe wants to slide down on a sunny day, but the slide is too hot. Which is most likely the reason for the slide being hot?

• radiation from the sun

• convection from the sun

• conduction from the sun

• transpiration from the sun

Tags

NGSS.MS-PS1-4

How does heat energy from the sun reach Earth?

• conduction

• convection

• insulation

• radiation

How is heat transferred when boiling a pot of water on the stove?

• conduction

• convection

• combustion

• radiation

Tags

NGSS.MS-PS1-4

How does radiation compare to conduction?

• Radiation is heat transfer through liquid, and conduction is heat transfer through air.

• Radiation is heat transfer through materials touching, and conduction is heat transfer through air.

• Radiation is heat transfer through air, and conduction is heat transfer through liquid.

• Radiation is heat transfer through air, and conduction is heat transfer through materials touching.

Molly notices hot sparks rising from a campfire. She knows the sparks are hot, because they are red. Which best explains the hot sparks rising?

• The sparks are rising due to radiated heat.

• The sparks are rising due to heat being conducted.

• The sparks are rising, and heat rises, proving this is convection.

• The sparks are rising to replace warm air, so the sparks are convecting heat.

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.

Tags

NGSS.MS-PS1-4

Which is an example of conduction?

• Steam is rising from a cup of hot coffee.

• A hot biscuit is warming the plate it is on.

• The sun is shining through a window and warming a table.

John put a heat pack on his cold feet. What will most likely be the result?

• The cold from John’s feet will be radiated into the heat pack.

• The warmth of the heat pack will be radiated onto John’s feet.

• The cold from John’s feet will be conducted into the heat pack.

• The warmth of the heat pack will be conducted onto John’s feet.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5