Grade 7 Convection - Heat transfer

Near the ceiling of a room, the air is warmer. The warmer air is rising because of

• Convection

• Conduction

• Radiation

• It was told to by this crazy fool!

In a swimming pool, the water near the surface is slightly warmer. The temperature of the water near the top rises because of

• Convection

• Conduction

• Radiation

• Too many dogs being in the pool!

A fireman that is at a building that is on fire feels a door and it is hot. Why does his hand feel hot?

• Convection

• Conduction

• Radiation

• The Human Torch was on the other side!

The butter on top of the pancake melted. Why?

• Conduction

• Convection

• Radiation

Ironing a shirt is an example of...

• Condensation

• Conduction

• Convection

• Radiation

A piece of cheese that melts as heat is transferred from the meat to the cheese is an example of what?

• Radiation

• Conduction

• Convection

Conduction is how heat passes through objects by...

• Fluids

• Direct Contact

• Empty Space

Which statement explains why wind direction changes from day to night?

• The land quickly heats up during the day and stays warm at night

• The water quickly heats up during the day and stays warm at night.

• The land quickly heats up during the day and the water stays warmer at night.

• The water quickly heats up during the day and the land stays warmer at night.

How is heat being transferred?

• Convection from the pot to the water and radiation through the water

• Conduction from the pot to the water and convection through the water

• Convection from the stove to the pot and radiation from the water to the air

• Radiation from the stove to the pot and conduction from the water to the air

Cold Pack on Person

• Heat is transferred from the cold pack to the person.

• Heat is transferred from the person to the cold pack

• The cold pack is getting warmer. The person is getting colder.

• The cold pack is getting colder. The person is getting warmer.