Thermal Energy/Heat Transfer

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

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NGSS.MS-PS1-4

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

• Conduction
• Radiation
• Convection
• Density

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NGSS.MS-PS3-4

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

• conduction
• convection
• radiation
• Insolation 

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NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

A group of friends gather around a fire to stay warm.

• conduction
• convection
• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-3

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

• more
• less

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Conduction occurs in...

• solids
• liquids
• gases

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Considering that convection is driven by differences in temperature, double-pane windows are most likely used to 

• create a convection current from the outside air to the inside air.
• increase the rate of heat flow to the outside air 2
• create a convection current from the inside air to the outside air.
• decrease the rate of heat flow to the outside air.

Tags

NGSS.MS-PS3-3

Heat would best be transferred by conduction between

• a candle and the air.
• an oven and a glass dish.
• a stove and a copper pot.
• water and a wooden spoon

Tags

NGSS.MS-PS1-4

What happens when ice cubes melt in a glass?

• Heat travels from the ice to the warmer water.
• No energy is transferred.
• Heat is transferred from the warmer water to the ice cubes.
• The water warms up due to the humidity

Tags

NGSS.MS-PS1-4

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Which direction will the heat flow while this person holds a hot cup of tea?

• from the cup to her hand
• from her hand to the cup
• no heat is transferred

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5