Heat and Temperature UT

Heat and Temperature UT Discussion

By Iin Juniawati

Fill in the Blanks

Joshua wants to find out which spoon is a better conductor of heat. He set up the experiment as shown below. He filled the container with boiling water. He then put a block of butter at the tip of each of the spoons. 

Which block of butter will melt first?    

Poll

Which spoon is a poor conductor of heat?  

• Wooden spoon

• Metal spoon

Open Ended

Describe how the heat travels based on the picture above?

Multiple Choice

The instrument used to measure temperature accurately is a ______

• temperature

• degree celcius

• thermometer

• thermocentimeter

The hotter object is the boiling water, and the colder objects are the spoons and the butter.

The heat from the boiling water will travel to the spoons and then to the butter on the top of each of the spoon.​

Since the metal spoon is a good conductor of heat, the heat will reach the butter faster.​

Heat travels from hotter object to colder object

​

Ms. Iin has 2 lunch boxes, styrofoam lunch box and metal lunch box. She packs the same hot meal in them. 

Multiple Choice

Which one of these lunch boxes will keep the meal hot longer?

• Styrofoam lunch box

• Metal lunch box

Styrofoam is a poor conductor of heat.

It doesn’t allow the heat to pass through easily / It traps the heat inside it and not let it pass through easily.

Why?

Rita has two similar basins, A and B, containing the same amount of water at 20 °C. She poured a cup of water at 100 °C into Basin A. She poured a bucket of water at 100 °C into Basin B.

​

Fill in the Blanks

In which basin will the temperature be higher?

The water in the bucket has more heat than the water in the cup because of the greater amount of water in the bucket.

Therefore, when the water from the bucket is added to Basin B, more heat travels to the water in the basin, and so the temperature becomes higher.

Answer whether these situations are examples of conduction, convection or radiation​

Answer the questions

Multiple Choice

A boy sits to the side of a campfire. He is 10 feet away but still feels warm.

• Conduction

• Convection

• Radiation

Multiple Choice

You rubbed your hands together for awhile and feel warm when you put them in your cheek.

• Conduction

• Convection

• Radiation

Multiple Choice

The air in the hot air balloon is heated and circulates.

• Conduction

• Convection

• Radiation

Multiple Choice

You walk barefoot on the hot street, and it burns your toes.

• Conduction

• Convection

• Radiation

Multiple Choice

The water in the kettle is heated and boil.

• Conduction

• Convection

• Radiation

Multiple Choice

You hanged your wet clothes outside when it's sunny and the clothes dry after few hours.

• Conduction

• Convection

• Radiation

Great job everyone!