Thermal Energy Transfer Review

Conduction can only occur between two objects when–

• one object is less dense than the other.

• both objects are in physical contact with each other.

• one of the objects is made of a metal.

• both objects are exactly the same temperature.

Thermal energy being moved from one object to another by conduction, convection, or radiation is called _____________________.

• fluids

• thermal transfer

• collision of atoms

• radiation

Tags

NGSS.MS-PS3-3

Which form of transfer is happening with the child's hand?

• conduction

• radiation

• convection

Which form of transfer is represented by the water in the pot?

• radiation

• conduction

• convection

Which of the following is an example of a situation in which an egg is receiving thermal energy through convection?

• Which of the following is an example of a situation in which an egg is receiving thermal energy through convection?

• An egg is fried in a metal pan on the stove.

• An egg cracked on a hot sidewalk starts to cook.

• The egg is cooked in a pot of water on the stove.

Transfer of energy through circular motion caused by heating and cooling in fluids (liquids and gases).

• Conduction

• Convection

• Radiation

• Conductors

Tags

NGSS.MS-PS1-4

Roasting marshmallows in a campfire is an example of ____________________________.

• radiation

• conduction

• convection

• conductors

Wind is a good example of CONVECTION. When the sun heats the air near the ground, that air rises. Colder air that had been at a higher altitude sinks. When this happens, we get wind.

• True

• False

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which form of energy transfer causes a sunburn?

• conduction

• convection

• radiation

A lamp that plugs into a wall socket draws energy, which flows through a thin wire in the bulb, causing it to heat up until it glows. What energy transformations are taking place?

• Chemical → light → electrical

• Mechanical → sound → light

• Thermal → solar → electrical

• Electrical → thermal → light

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4