Heat Transfer

Heat Transfer

Convection, Conduction and Radiation

https://www.youtube.com/watch?v=kNZi12OV9Xc

Multiple Choice

Molecules in cold things move more _________
than in hot things.

• quickly
• slowly
• happily
• merrily

Multiple Choice

Hot air moving up is an example of

• Radiation

• Conduction

• Magic

• Convection

Multiple Choice

Heat transfers from an area of ____temperature to an area of ___ temperature.

• high to low

• low to high

• high to high

Multiple Choice

The warm air from this heater creates a current when the warm air rises and the cold air sinks.

• conduction
• convection
• radiation

Multiple Choice

The candle will slowly heat the metal and transfer the heat directly to the mans hand.

• conduction
• convection
• radiation

Multiple Choice

In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom.

• conduction
• convection
• radiation

Multiple Choice

Walking on the warm sand sand with your bare feet.

• conduction
• convection
• radiation

Multiple Choice

A house burns down. The vinyl siding of the house next door warps due to

• conduction
• convection
• radiation

Multiple Choice

Why do we wear sweaters in cold weather?

• To keep cold out.
• To generate heat.
• To reduce heat loss.
• All of the above.

Multiple Choice

The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer. 

• conduction
• convection
• radiation

Multiple Choice

Johnny accidentally grabbed the handle of the hot pot.

• conduction
• convection
• radiation

Multiple Choice

The man goes to take the hot pot off the stove with his bare hands.

• conduction
• convection
• radiation

Multiple Choice

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.

Multiple Choice

Jordan places a hot spoon into a container of ice cream. How does this help him scoop  out the ice cream? 

• The coolness from the ice cream is conducted to the spoon making it easier to scoop out.
• The coolness from the ice cream is radiated to the spoon making it easier to scoop out.
• The warmth of the spoon is conducted to the ice cream  making it easier to scoop out.
• The warmth of the spoon is radiated  to the ice cream making it easier to scoop out.

Multiple Choice

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Multiple Choice

Ironing a shirt is an example of...

• condensation
• conduction
• convection
• radiation

Multiple Choice

Warm air rises and the cool air sinks demonstrates this type of heat transfer. 

• conduction
• convection
• radiation
• Insolation 

Multiple Choice

Which is an example of heat being transferred by conduction?

• a furnace heating the air in a school

• an ice cube melting in a person’s hand

• a pot of water on a stove boiling

• the sun heating water in a swimming pool

Multiple Choice

What kind of heat transfer happens when the sun is heating your body?

• Conduction
• Radiation
• Convection
• Density