Thermal Energy Transformations

Front

What is conduction in the context of heat transfer?

Back

Conduction is the process of heat transfer through direct contact between materials, where heat moves from the hotter object to the cooler one.

Tags

NGSS.MS-PS1-4

Front

What is convection and how does it occur?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks, creating a current.

Tags

NGSS.MS-ESS2-6

Front

What is an example of conduction in everyday life?

Back

An example of conduction is touching a hot stove; heat transfers from the stove to your hand.

Front

What is an example of convection in nature?

Back

An example of convection is the movement of air in the atmosphere, where warm air rises and cool air descends.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Front

What is radiation in the context of heat transfer?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation from the sun.

Front

How does temperature affect the density of a material?

Back

Generally, as temperature increases, the density of a material decreases because the particles move apart, making the material less dense.

Tags

NGSS.MS-PS1-4

Front

What happens to warm water in the ocean compared to cold water?

Back

Warm water in the ocean rises to the surface, while cold water sinks to the bottom.

Tags

NGSS.MS-ESS2-6

Front

What are the three main methods of heat transfer?

Back

The three main methods of heat transfer are conduction, convection, and radiation.

Tags

NGSS.MS-PS3-3

Front

True or False: The density of a specific type of material never changes. Why?

Back

True. The density of a specific type of material remains constant under constant temperature and pressure conditions.

Front

What is a convection current?

Back

A convection current is a continuous cycle of rising warm fluid and sinking cool fluid, often seen in liquids and gases.

Tags

NGSS.MS-ESS2-6