Heat Transfer

What causes your skin to feel warm when it is in the sun on a summer day?

• Particles in the atmosphere reflect energy from the Sun downward

• The Sun radiates energy that passes through space & the atmosphere to your skin.

• Hot particles from the Sun still carry some heat when they reach your skin.

• The solar wind carries heated air from the Sun’s atmosphere to Earth’s surface.

Which best describes the flow of heat?

• A. From a larger object to a smaller object

• From a cooler object to a warmer object

• From a warmer object to a cooler object

• From a warmer object to a warmer object

Tags

NGSS.HS-PS3-4

People sitting around a campfire are able to feel the heat from the fire.

How are the people able to feel the heat form the fire without touching the fire?

• A. The heat from the fire travels through the ground & heats the ground around the people.

• B. The heat from the fire is conducted through air molecules to the people.

• C. The heat from the fire rises in the air and then settles around the people.

• D. The heat from the fire radiates from the fire to the people.

You hold a bowl of hot soup that warms your hands; this is

• A. Radiation

• B. Conduction

• C. Convection

• D. Conviction

Steam from a hot bowl of soup warms your face as you lean over it; this is

• A. Radiation

• B. Conduction

• C. Convection

• D. Conviction

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.

What type of heat transfer takes place when you touch a warm mug of hot chocolate?

• Radiation

• Convection

• Conduction

• None of the above

Heat transfer always moves ...

• cold to hot

• east to west

• hot to cold

• north to south

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

The earth receives heat energy from the sun by _______________, which is the transfer of energy as electromagnetic waves?

• radiation
• convection
• conduction
• greenhouse effect

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following is an application of convection?

• The movement of heat through a metal pan to the food.

• The use of ice box to keep drinks cool.

• The sea breeze that blows from sea to land.

• The use of wool blanket to keep the body warm.