Thermal Equilibrium

Transfer of thermal energy, in a liquid or gas, in which the warmer substance rises and the cooler substance sinks.

• Thermal Energy

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The condition where two substances in physical contact with each other exchange no heat energy. They are said to be the same temperature.

• Thermal Energy

• Cooler to Warmer

• Energy Transfer

• Thermal Equilibrium

Tags

NGSS.MS-PS1-4

Two objects have different temperatures. Object A has a temperature of 42 degrees and Object B is 37 degrees. Which direction should the energy transfer between Objects A and B?

• From Object A to Object B

• From Object B to Object A

• Energy will not transfer

• Energy will transfer both directions

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What happens to the temperature if I add ice cubes to a glass of soda?

• The heat transfers from the coke to the ice

• The heat transfers from the ice to the coke

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

You leave your cold spoon in a hot bowl of oatmeal. What happens after an hour?

• The temperature of both the oatmeal and the spoon stay the same

• The spoon and the oatmeal become the same temperature

• Only the temperature of the oatmeal will change

• Only the temperature of the spoon will change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What are some examples of heat transfer?

• conduction
• convection
• radiation
• all of the above

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is an example of radiation in everyday life?

• Feeling the warmth of the sun on your skin.

• The sound of a ringing phone.

• The taste of food when you eat it.

• The sight of a rainbow after rain.

What is an example of convection in everyday life?

• Boiling water; the hot water at the bottom rises while cooler water descends.

• Heating a room with a radiator.

• Using a fan to cool down a room.

• Stirring a pot of soup with a spoon.

Tags

NGSS.MS-PS3-3

What is an example of conduction in everyday life?

• Placing a skillet on a hot stove.

• Standing next to a campfire.

• Using a microwave to heat food.

• Feeling the warmth of the sun on your skin.

Tags

NGSS.MS-PS3-4

What is the role of thermal conductors and insulators?

• Thermal conductors resist heat transfer, while thermal insulators allow heat to pass through them easily.

• Thermal conductors allow heat to pass through them easily, while thermal insulators resist heat transfer.

• Both thermal conductors and insulators allow heat to pass through them easily.

• Thermal conductors and insulators have no effect on heat transfer.

Tags

NGSS.MS-PS3-3